Simon Browne
4 days ago
2372 changed files with 401266 additions and 3 deletions
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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# -*- coding: utf-8 -*- |
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import re |
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import sys |
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from icalendar.cli import main |
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if __name__ == '__main__': |
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sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0]) |
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sys.exit(main()) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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# -*- coding: utf-8 -*- |
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import re |
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import sys |
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from markdown_it.cli.parse import main |
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if __name__ == '__main__': |
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sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0]) |
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sys.exit(main()) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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# -*- coding: utf-8 -*- |
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import re |
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import sys |
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from markdown.__main__ import run |
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if __name__ == '__main__': |
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sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0]) |
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sys.exit(run()) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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# -*- coding: utf-8 -*- |
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import re |
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import sys |
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from pelican.__main__ import main |
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if __name__ == '__main__': |
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sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0]) |
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sys.exit(main()) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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# -*- coding: utf-8 -*- |
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import re |
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import sys |
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from pelican.tools.pelican_import import main |
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if __name__ == '__main__': |
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sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0]) |
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sys.exit(main()) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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# -*- coding: utf-8 -*- |
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import re |
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import sys |
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from pelican.plugins._utils import list_plugins |
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if __name__ == '__main__': |
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sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0]) |
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sys.exit(list_plugins()) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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# -*- coding: utf-8 -*- |
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import re |
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import sys |
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from pelican.tools.pelican_quickstart import main |
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if __name__ == '__main__': |
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sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0]) |
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sys.exit(main()) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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# -*- coding: utf-8 -*- |
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import re |
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import sys |
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from pelican.tools.pelican_themes import main |
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if __name__ == '__main__': |
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sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0]) |
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sys.exit(main()) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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# -*- coding: utf-8 -*- |
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import re |
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import sys |
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from pygments.cmdline import main |
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if __name__ == '__main__': |
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sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0]) |
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sys.exit(main()) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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|
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# $Id: rst2html.py 4564 2006-05-21 20:44:42Z wiemann $ |
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# Author: David Goodger <goodger@python.org> |
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# Copyright: This module has been placed in the public domain. |
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|
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""" |
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A minimal front end to the Docutils Publisher, producing HTML. |
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""" |
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|
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try: |
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import locale |
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locale.setlocale(locale.LC_ALL, '') |
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except: |
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pass |
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|
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from docutils.core import publish_cmdline, default_description |
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|
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|
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description = ('Generates (X)HTML documents from standalone reStructuredText ' |
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'sources. ' + default_description) |
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|
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publish_cmdline(writer_name='html', description=description) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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|
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# $Id: rst2html4.py 7994 2016-12-10 17:41:45Z milde $ |
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# Author: David Goodger <goodger@python.org> |
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# Copyright: This module has been placed in the public domain. |
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|
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""" |
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A minimal front end to the Docutils Publisher, producing (X)HTML. |
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|
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The output conforms to XHTML 1.0 transitional |
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and almost to HTML 4.01 transitional (except for closing empty tags). |
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""" |
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|
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try: |
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import locale |
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locale.setlocale(locale.LC_ALL, '') |
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except: |
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pass |
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|
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from docutils.core import publish_cmdline, default_description |
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|
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|
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description = ('Generates (X)HTML documents from standalone reStructuredText ' |
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'sources. ' + default_description) |
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|
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publish_cmdline(writer_name='html4', description=description) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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# -*- coding: utf8 -*- |
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# :Copyright: © 2015 Günter Milde. |
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# :License: Released under the terms of the `2-Clause BSD license`_, in short: |
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# |
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# Copying and distribution of this file, with or without modification, |
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# are permitted in any medium without royalty provided the copyright |
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# notice and this notice are preserved. |
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# This file is offered as-is, without any warranty. |
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# |
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# .. _2-Clause BSD license: http://www.spdx.org/licenses/BSD-2-Clause |
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# |
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# Revision: $Revision: 8410 $ |
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# Date: $Date: 2019-11-04 22:14:43 +0100 (Mo, 04. Nov 2019) $ |
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|
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""" |
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A minimal front end to the Docutils Publisher, producing HTML 5 documents. |
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|
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The output also conforms to XHTML 1.0 transitional |
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(except for the doctype declaration). |
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""" |
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|
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try: |
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import locale # module missing in Jython |
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locale.setlocale(locale.LC_ALL, '') |
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except locale.Error: |
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pass |
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|
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from docutils.core import publish_cmdline, default_description |
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|
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description = (u'Generates HTML 5 documents from standalone ' |
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u'reStructuredText sources ' |
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+ default_description) |
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|
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publish_cmdline(writer_name='html5', description=description) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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|
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# $Id: rst2latex.py 5905 2009-04-16 12:04:49Z milde $ |
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# Author: David Goodger <goodger@python.org> |
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# Copyright: This module has been placed in the public domain. |
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|
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""" |
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A minimal front end to the Docutils Publisher, producing LaTeX. |
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""" |
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|
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try: |
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import locale |
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locale.setlocale(locale.LC_ALL, '') |
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except: |
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pass |
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|
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from docutils.core import publish_cmdline |
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|
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description = ('Generates LaTeX documents from standalone reStructuredText ' |
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'sources. ' |
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'Reads from <source> (default is stdin) and writes to ' |
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'<destination> (default is stdout). See ' |
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'<http://docutils.sourceforge.net/docs/user/latex.html> for ' |
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'the full reference.') |
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|
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publish_cmdline(writer_name='latex', description=description) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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|
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# Author: |
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# Contact: grubert@users.sf.net |
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# Copyright: This module has been placed in the public domain. |
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|
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""" |
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man.py |
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====== |
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|
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This module provides a simple command line interface that uses the |
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man page writer to output from ReStructuredText source. |
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""" |
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|
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import locale |
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try: |
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locale.setlocale(locale.LC_ALL, '') |
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except: |
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pass |
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|
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from docutils.core import publish_cmdline, default_description |
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from docutils.writers import manpage |
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|
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description = ("Generates plain unix manual documents. " + default_description) |
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publish_cmdline(writer=manpage.Writer(), description=description) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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|
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# $Id: rst2odt.py 5839 2009-01-07 19:09:28Z dkuhlman $ |
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# Author: Dave Kuhlman <dkuhlman@rexx.com> |
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# Copyright: This module has been placed in the public domain. |
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|
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""" |
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A front end to the Docutils Publisher, producing OpenOffice documents. |
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""" |
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|
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import sys |
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try: |
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import locale |
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locale.setlocale(locale.LC_ALL, '') |
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except: |
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pass |
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|
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from docutils.core import publish_cmdline_to_binary, default_description |
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from docutils.writers.odf_odt import Writer, Reader |
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|
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|
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description = ('Generates OpenDocument/OpenOffice/ODF documents from ' |
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'standalone reStructuredText sources. ' + default_description) |
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|
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|
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writer = Writer() |
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reader = Reader() |
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output = publish_cmdline_to_binary(reader=reader, writer=writer, |
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description=description) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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|
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# $Id: rst2odt_prepstyles.py 8346 2019-08-26 12:11:32Z milde $ |
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# Author: Dave Kuhlman <dkuhlman@rexx.com> |
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# Copyright: This module has been placed in the public domain. |
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|
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""" |
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Fix a word-processor-generated styles.odt for odtwriter use: Drop page size |
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specifications from styles.xml in STYLE_FILE.odt. |
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""" |
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|
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# Author: Michael Schutte <michi@uiae.at> |
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from __future__ import print_function |
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|
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from lxml import etree |
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import sys |
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import zipfile |
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from tempfile import mkstemp |
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import shutil |
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import os |
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|
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NAMESPACES = { |
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"style": "urn:oasis:names:tc:opendocument:xmlns:style:1.0", |
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"fo": "urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" |
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} |
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|
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|
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def prepstyle(filename): |
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|
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zin = zipfile.ZipFile(filename) |
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styles = zin.read("styles.xml") |
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root = etree.fromstring(styles) |
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for el in root.xpath("//style:page-layout-properties", |
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namespaces=NAMESPACES): |
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for attr in el.attrib: |
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if attr.startswith("{%s}" % NAMESPACES["fo"]): |
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del el.attrib[attr] |
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|
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tempname = mkstemp() |
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zout = zipfile.ZipFile(os.fdopen(tempname[0], "w"), "w", |
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zipfile.ZIP_DEFLATED) |
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|
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for item in zin.infolist(): |
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if item.filename == "styles.xml": |
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zout.writestr(item, etree.tostring(root)) |
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else: |
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zout.writestr(item, zin.read(item.filename)) |
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|
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zout.close() |
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zin.close() |
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shutil.move(tempname[1], filename) |
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|
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|
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def main(): |
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args = sys.argv[1:] |
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if len(args) != 1: |
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print(__doc__, file=sys.stderr) |
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print("Usage: %s STYLE_FILE.odt\n" % sys.argv[0], file=sys.stderr) |
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sys.exit(1) |
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filename = args[0] |
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prepstyle(filename) |
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|
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|
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if __name__ == '__main__': |
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main() |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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|
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# $Id: rst2pseudoxml.py 4564 2006-05-21 20:44:42Z wiemann $ |
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# Author: David Goodger <goodger@python.org> |
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# Copyright: This module has been placed in the public domain. |
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|
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""" |
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A minimal front end to the Docutils Publisher, producing pseudo-XML. |
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""" |
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|
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try: |
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import locale |
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locale.setlocale(locale.LC_ALL, '') |
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except: |
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pass |
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|
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from docutils.core import publish_cmdline, default_description |
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|
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|
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description = ('Generates pseudo-XML from standalone reStructuredText ' |
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'sources (for testing purposes). ' + default_description) |
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|
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publish_cmdline(description=description) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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|
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# $Id: rst2s5.py 4564 2006-05-21 20:44:42Z wiemann $ |
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# Author: Chris Liechti <cliechti@gmx.net> |
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# Copyright: This module has been placed in the public domain. |
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|
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""" |
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A minimal front end to the Docutils Publisher, producing HTML slides using |
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the S5 template system. |
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""" |
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|
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try: |
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import locale |
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locale.setlocale(locale.LC_ALL, '') |
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except: |
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pass |
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|
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from docutils.core import publish_cmdline, default_description |
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|
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description = ('Generates S5 (X)HTML slideshow documents from standalone ' |
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'reStructuredText sources. ' + default_description) |
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|
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publish_cmdline(writer_name='s5', description=description) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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# $Id: rst2xetex.py 7847 2015-03-17 17:30:47Z milde $ |
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# Author: Guenter Milde |
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# Copyright: This module has been placed in the public domain. |
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|
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""" |
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A minimal front end to the Docutils Publisher, producing Lua/XeLaTeX code. |
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""" |
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|
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try: |
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import locale |
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locale.setlocale(locale.LC_ALL, '') |
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except: |
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pass |
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|
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from docutils.core import publish_cmdline |
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|
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description = ('Generates LaTeX documents from standalone reStructuredText ' |
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'sources for compilation with the Unicode-aware TeX variants ' |
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'XeLaTeX or LuaLaTeX. ' |
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'Reads from <source> (default is stdin) and writes to ' |
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'<destination> (default is stdout). See ' |
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'<http://docutils.sourceforge.net/docs/user/latex.html> for ' |
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'the full reference.') |
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|
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publish_cmdline(writer_name='xetex', description=description) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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|
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# $Id: rst2xml.py 4564 2006-05-21 20:44:42Z wiemann $ |
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# Author: David Goodger <goodger@python.org> |
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# Copyright: This module has been placed in the public domain. |
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|
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""" |
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A minimal front end to the Docutils Publisher, producing Docutils XML. |
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""" |
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|
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try: |
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import locale |
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locale.setlocale(locale.LC_ALL, '') |
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except: |
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pass |
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|
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from docutils.core import publish_cmdline, default_description |
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|
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|
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description = ('Generates Docutils-native XML from standalone ' |
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'reStructuredText sources. ' + default_description) |
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|
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publish_cmdline(writer_name='xml', description=description) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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|
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# $Id: rstpep2html.py 4564 2006-05-21 20:44:42Z wiemann $ |
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# Author: David Goodger <goodger@python.org> |
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# Copyright: This module has been placed in the public domain. |
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|
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""" |
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A minimal front end to the Docutils Publisher, producing HTML from PEP |
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(Python Enhancement Proposal) documents. |
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""" |
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|
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try: |
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import locale |
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locale.setlocale(locale.LC_ALL, '') |
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except: |
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pass |
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|
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from docutils.core import publish_cmdline, default_description |
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|
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|
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description = ('Generates (X)HTML from reStructuredText-format PEP files. ' |
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+ default_description) |
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|
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publish_cmdline(reader_name='pep', writer_name='pep_html', |
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description=description) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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# -*- coding: utf-8 -*- |
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import re |
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import sys |
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from unidecode.util import main |
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if __name__ == '__main__': |
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sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0]) |
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sys.exit(main()) |
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#!/home/simon/Documents/Work/Varia/varia.website/venv/bin/python3 |
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# -*- coding: utf-8 -*- |
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import re |
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import sys |
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from watchfiles.cli import cli |
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if __name__ == '__main__': |
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sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0]) |
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sys.exit(cli()) |
@ -0,0 +1 @@ |
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pip |
@ -0,0 +1,28 @@ |
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Copyright 2007 Pallets |
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|
|||
Redistribution and use in source and binary forms, with or without |
|||
modification, are permitted provided that the following conditions are |
|||
met: |
|||
|
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1. Redistributions of source code must retain the above copyright |
|||
notice, this list of conditions and the following disclaimer. |
|||
|
|||
2. Redistributions in binary form must reproduce the above copyright |
|||
notice, this list of conditions and the following disclaimer in the |
|||
documentation and/or other materials provided with the distribution. |
|||
|
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3. Neither the name of the copyright holder nor the names of its |
|||
contributors may be used to endorse or promote products derived from |
|||
this software without specific prior written permission. |
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|
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
|||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
|||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A |
|||
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
|||
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
|||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED |
|||
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
|||
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
|||
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
|||
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
|||
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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Metadata-Version: 2.1 |
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Name: Jinja2 |
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Version: 2.11.3 |
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Summary: A very fast and expressive template engine. |
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Home-page: https://palletsprojects.com/p/jinja/ |
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Author: Armin Ronacher |
|||
Author-email: armin.ronacher@active-4.com |
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Maintainer: Pallets |
|||
Maintainer-email: contact@palletsprojects.com |
|||
License: BSD-3-Clause |
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Project-URL: Documentation, https://jinja.palletsprojects.com/ |
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Project-URL: Code, https://github.com/pallets/jinja |
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Project-URL: Issue tracker, https://github.com/pallets/jinja/issues |
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Platform: UNKNOWN |
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Classifier: Development Status :: 5 - Production/Stable |
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Classifier: Environment :: Web Environment |
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Classifier: Intended Audience :: Developers |
|||
Classifier: License :: OSI Approved :: BSD License |
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Classifier: Operating System :: OS Independent |
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Classifier: Programming Language :: Python |
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Classifier: Programming Language :: Python :: 2 |
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Classifier: Programming Language :: Python :: 2.7 |
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Classifier: Programming Language :: Python :: 3 |
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Classifier: Programming Language :: Python :: 3.5 |
|||
Classifier: Programming Language :: Python :: 3.6 |
|||
Classifier: Programming Language :: Python :: 3.7 |
|||
Classifier: Programming Language :: Python :: 3.8 |
|||
Classifier: Programming Language :: Python :: Implementation :: CPython |
|||
Classifier: Programming Language :: Python :: Implementation :: PyPy |
|||
Classifier: Topic :: Internet :: WWW/HTTP :: Dynamic Content |
|||
Classifier: Topic :: Software Development :: Libraries :: Python Modules |
|||
Classifier: Topic :: Text Processing :: Markup :: HTML |
|||
Requires-Python: >=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.* |
|||
Description-Content-Type: text/x-rst |
|||
Requires-Dist: MarkupSafe (>=0.23) |
|||
Provides-Extra: i18n |
|||
Requires-Dist: Babel (>=0.8) ; extra == 'i18n' |
|||
|
|||
Jinja |
|||
===== |
|||
|
|||
Jinja is a fast, expressive, extensible templating engine. Special |
|||
placeholders in the template allow writing code similar to Python |
|||
syntax. Then the template is passed data to render the final document. |
|||
|
|||
It includes: |
|||
|
|||
- Template inheritance and inclusion. |
|||
- Define and import macros within templates. |
|||
- HTML templates can use autoescaping to prevent XSS from untrusted |
|||
user input. |
|||
- A sandboxed environment can safely render untrusted templates. |
|||
- AsyncIO support for generating templates and calling async |
|||
functions. |
|||
- I18N support with Babel. |
|||
- Templates are compiled to optimized Python code just-in-time and |
|||
cached, or can be compiled ahead-of-time. |
|||
- Exceptions point to the correct line in templates to make debugging |
|||
easier. |
|||
- Extensible filters, tests, functions, and even syntax. |
|||
|
|||
Jinja's philosophy is that while application logic belongs in Python if |
|||
possible, it shouldn't make the template designer's job difficult by |
|||
restricting functionality too much. |
|||
|
|||
|
|||
Installing |
|||
---------- |
|||
|
|||
Install and update using `pip`_: |
|||
|
|||
.. code-block:: text |
|||
|
|||
$ pip install -U Jinja2 |
|||
|
|||
.. _pip: https://pip.pypa.io/en/stable/quickstart/ |
|||
|
|||
|
|||
In A Nutshell |
|||
------------- |
|||
|
|||
.. code-block:: jinja |
|||
|
|||
{% extends "base.html" %} |
|||
{% block title %}Members{% endblock %} |
|||
{% block content %} |
|||
<ul> |
|||
{% for user in users %} |
|||
<li><a href="{{ user.url }}">{{ user.username }}</a></li> |
|||
{% endfor %} |
|||
</ul> |
|||
{% endblock %} |
|||
|
|||
|
|||
Links |
|||
----- |
|||
|
|||
- Website: https://palletsprojects.com/p/jinja/ |
|||
- Documentation: https://jinja.palletsprojects.com/ |
|||
- Releases: https://pypi.org/project/Jinja2/ |
|||
- Code: https://github.com/pallets/jinja |
|||
- Issue tracker: https://github.com/pallets/jinja/issues |
|||
- Test status: https://dev.azure.com/pallets/jinja/_build |
|||
- Official chat: https://discord.gg/t6rrQZH |
|||
|
|||
|
@ -0,0 +1,61 @@ |
|||
Jinja2-2.11.3.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4 |
|||
Jinja2-2.11.3.dist-info/LICENSE.rst,sha256=O0nc7kEF6ze6wQ-vG-JgQI_oXSUrjp3y4JefweCUQ3s,1475 |
|||
Jinja2-2.11.3.dist-info/METADATA,sha256=PscpJ1C3RSp8xcjV3fAuTz13rKbGxmzJXnMQFH-WKhs,3535 |
|||
Jinja2-2.11.3.dist-info/RECORD,, |
|||
Jinja2-2.11.3.dist-info/WHEEL,sha256=Z-nyYpwrcSqxfdux5Mbn_DQ525iP7J2DG3JgGvOYyTQ,110 |
|||
Jinja2-2.11.3.dist-info/entry_points.txt,sha256=Qy_DkVo6Xj_zzOtmErrATe8lHZhOqdjpt3e4JJAGyi8,61 |
|||
Jinja2-2.11.3.dist-info/top_level.txt,sha256=PkeVWtLb3-CqjWi1fO29OCbj55EhX_chhKrCdrVe_zs,7 |
|||
jinja2/__init__.py,sha256=LZUXmxJc2GIchfSAeMWsxCWiQYO-w1-736f2Q3I8ms8,1549 |
|||
jinja2/__pycache__/__init__.cpython-311.pyc,, |
|||
jinja2/__pycache__/_compat.cpython-311.pyc,, |
|||
jinja2/__pycache__/_identifier.cpython-311.pyc,, |
|||
jinja2/__pycache__/asyncfilters.cpython-311.pyc,, |
|||
jinja2/__pycache__/asyncsupport.cpython-311.pyc,, |
|||
jinja2/__pycache__/bccache.cpython-311.pyc,, |
|||
jinja2/__pycache__/compiler.cpython-311.pyc,, |
|||
jinja2/__pycache__/constants.cpython-311.pyc,, |
|||
jinja2/__pycache__/debug.cpython-311.pyc,, |
|||
jinja2/__pycache__/defaults.cpython-311.pyc,, |
|||
jinja2/__pycache__/environment.cpython-311.pyc,, |
|||
jinja2/__pycache__/exceptions.cpython-311.pyc,, |
|||
jinja2/__pycache__/ext.cpython-311.pyc,, |
|||
jinja2/__pycache__/filters.cpython-311.pyc,, |
|||
jinja2/__pycache__/idtracking.cpython-311.pyc,, |
|||
jinja2/__pycache__/lexer.cpython-311.pyc,, |
|||
jinja2/__pycache__/loaders.cpython-311.pyc,, |
|||
jinja2/__pycache__/meta.cpython-311.pyc,, |
|||
jinja2/__pycache__/nativetypes.cpython-311.pyc,, |
|||
jinja2/__pycache__/nodes.cpython-311.pyc,, |
|||
jinja2/__pycache__/optimizer.cpython-311.pyc,, |
|||
jinja2/__pycache__/parser.cpython-311.pyc,, |
|||
jinja2/__pycache__/runtime.cpython-311.pyc,, |
|||
jinja2/__pycache__/sandbox.cpython-311.pyc,, |
|||
jinja2/__pycache__/tests.cpython-311.pyc,, |
|||
jinja2/__pycache__/utils.cpython-311.pyc,, |
|||
jinja2/__pycache__/visitor.cpython-311.pyc,, |
|||
jinja2/_compat.py,sha256=B6Se8HjnXVpzz9-vfHejn-DV2NjaVK-Iewupc5kKlu8,3191 |
|||
jinja2/_identifier.py,sha256=EdgGJKi7O1yvr4yFlvqPNEqV6M1qHyQr8Gt8GmVTKVM,1775 |
|||
jinja2/asyncfilters.py,sha256=XJtYXTxFvcJ5xwk6SaDL4S0oNnT0wPYvXBCSzc482fI,4250 |
|||
jinja2/asyncsupport.py,sha256=ZBFsDLuq3Gtji3Ia87lcyuDbqaHZJRdtShZcqwpFnSQ,7209 |
|||
jinja2/bccache.py,sha256=3Pmp4jo65M9FQuIxdxoDBbEDFwe4acDMQf77nEJfrHA,12139 |
|||
jinja2/compiler.py,sha256=Ta9W1Lit542wItAHXlDcg0sEOsFDMirCdlFPHAurg4o,66284 |
|||
jinja2/constants.py,sha256=RR1sTzNzUmKco6aZicw4JpQpJGCuPuqm1h1YmCNUEFY,1458 |
|||
jinja2/debug.py,sha256=neR7GIGGjZH3_ILJGVUYy3eLQCCaWJMXOb7o0kGInWc,8529 |
|||
jinja2/defaults.py,sha256=85B6YUUCyWPSdrSeVhcqFVuu_bHUAQXeey--FIwSeVQ,1126 |
|||
jinja2/environment.py,sha256=XDSLKc4SqNLMOwTSq3TbWEyA5WyXfuLuVD0wAVjEFwM,50629 |
|||
jinja2/exceptions.py,sha256=VjNLawcmf2ODffqVMCQK1cRmvFaUfQWF4u8ouP3QPcE,5425 |
|||
jinja2/ext.py,sha256=AtwL5O5enT_L3HR9-oBvhGyUTdGoyaqG_ICtnR_EVd4,26441 |
|||
jinja2/filters.py,sha256=9ORilsZrUoydSI9upz8_qGy7gozDWLYoFmlIBFSVRnQ,41439 |
|||
jinja2/idtracking.py,sha256=J3O4VHsrbf3wzwiBc7Cro26kHb6_5kbULeIOzocchIU,9211 |
|||
jinja2/lexer.py,sha256=nUFLRKhhKmmEWkLI65nQePgcQs7qsRdjVYZETMt_v0g,30331 |
|||
jinja2/loaders.py,sha256=C-fST_dmFjgWkp0ZuCkrgICAoOsoSIF28wfAFink0oU,17666 |
|||
jinja2/meta.py,sha256=QjyYhfNRD3QCXjBJpiPl9KgkEkGXJbAkCUq4-Ur10EQ,4131 |
|||
jinja2/nativetypes.py,sha256=Ul__gtVw4xH-0qvUvnCNHedQeNDwmEuyLJztzzSPeRg,2753 |
|||
jinja2/nodes.py,sha256=Mk1oJPVgIjnQw9WOqILvcu3rLepcFZ0ahxQm2mbwDwc,31095 |
|||
jinja2/optimizer.py,sha256=gQLlMYzvQhluhzmAIFA1tXS0cwgWYOjprN-gTRcHVsc,1457 |
|||
jinja2/parser.py,sha256=fcfdqePNTNyvosIvczbytVA332qpsURvYnCGcjDHSkA,35660 |
|||
jinja2/runtime.py,sha256=0y-BRyIEZ9ltByL2Id6GpHe1oDRQAwNeQvI0SKobNMw,30618 |
|||
jinja2/sandbox.py,sha256=knayyUvXsZ-F0mk15mO2-ehK9gsw04UhB8td-iUOtLc,17127 |
|||
jinja2/tests.py,sha256=iO_Y-9Vo60zrVe1lMpSl5sKHqAxe2leZHC08OoZ8K24,4799 |
|||
jinja2/utils.py,sha256=Wy4yC3IByqUWwnKln6SdaixdzgK74P6F5nf-gQZrYnU,22436 |
|||
jinja2/visitor.py,sha256=DUHupl0a4PGp7nxRtZFttUzAi1ccxzqc2hzetPYUz8U,3240 |
@ -0,0 +1,6 @@ |
|||
Wheel-Version: 1.0 |
|||
Generator: bdist_wheel (0.36.2) |
|||
Root-Is-Purelib: true |
|||
Tag: py2-none-any |
|||
Tag: py3-none-any |
|||
|
@ -0,0 +1,3 @@ |
|||
[babel.extractors] |
|||
jinja2 = jinja2.ext:babel_extract [i18n] |
|||
|
@ -0,0 +1 @@ |
|||
jinja2 |
@ -0,0 +1 @@ |
|||
pip |
@ -0,0 +1,29 @@ |
|||
Copyright 2007, 2008 The Python Markdown Project (v. 1.7 and later) |
|||
Copyright 2004, 2005, 2006 Yuri Takhteyev (v. 0.2-1.6b) |
|||
Copyright 2004 Manfred Stienstra (the original version) |
|||
|
|||
All rights reserved. |
|||
|
|||
Redistribution and use in source and binary forms, with or without |
|||
modification, are permitted provided that the following conditions are met: |
|||
|
|||
* Redistributions of source code must retain the above copyright |
|||
notice, this list of conditions and the following disclaimer. |
|||
* Redistributions in binary form must reproduce the above copyright |
|||
notice, this list of conditions and the following disclaimer in the |
|||
documentation and/or other materials provided with the distribution. |
|||
* Neither the name of the Python Markdown Project nor the |
|||
names of its contributors may be used to endorse or promote products |
|||
derived from this software without specific prior written permission. |
|||
|
|||
THIS SOFTWARE IS PROVIDED BY THE PYTHON MARKDOWN PROJECT ''AS IS'' AND ANY |
|||
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
|||
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
|||
DISCLAIMED. IN NO EVENT SHALL ANY CONTRIBUTORS TO THE PYTHON MARKDOWN PROJECT |
|||
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
|||
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
|||
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
|||
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
|||
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
|||
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
|||
POSSIBILITY OF SUCH DAMAGE. |
@ -0,0 +1,98 @@ |
|||
Metadata-Version: 2.1 |
|||
Name: Markdown |
|||
Version: 3.3.3 |
|||
Summary: Python implementation of Markdown. |
|||
Home-page: https://Python-Markdown.github.io/ |
|||
Author: Manfred Stienstra, Yuri takhteyev and Waylan limberg |
|||
Author-email: waylan.limberg@icloud.com |
|||
Maintainer: Waylan Limberg |
|||
Maintainer-email: waylan.limberg@icloud.com |
|||
License: BSD License |
|||
Download-URL: http://pypi.python.org/packages/source/M/Markdown/Markdown-3.3.3-py2.py3-none-any.whl |
|||
Project-URL: Documentation, https://Python-Markdown.github.io/ |
|||
Project-URL: GitHub Project, https://github.com/Python-Markdown/markdown |
|||
Project-URL: Issue Tracker, https://github.com/Python-Markdown/markdown/issues |
|||
Platform: UNKNOWN |
|||
Classifier: Development Status :: 5 - Production/Stable |
|||
Classifier: License :: OSI Approved :: BSD License |
|||
Classifier: Operating System :: OS Independent |
|||
Classifier: Programming Language :: Python |
|||
Classifier: Programming Language :: Python :: 3 |
|||
Classifier: Programming Language :: Python :: 3.6 |
|||
Classifier: Programming Language :: Python :: 3.7 |
|||
Classifier: Programming Language :: Python :: 3.8 |
|||
Classifier: Programming Language :: Python :: 3.9 |
|||
Classifier: Programming Language :: Python :: 3 :: Only |
|||
Classifier: Programming Language :: Python :: Implementation :: CPython |
|||
Classifier: Programming Language :: Python :: Implementation :: PyPy |
|||
Classifier: Topic :: Communications :: Email :: Filters |
|||
Classifier: Topic :: Internet :: WWW/HTTP :: Dynamic Content :: CGI Tools/Libraries |
|||
Classifier: Topic :: Internet :: WWW/HTTP :: Site Management |
|||
Classifier: Topic :: Software Development :: Documentation |
|||
Classifier: Topic :: Software Development :: Libraries :: Python Modules |
|||
Classifier: Topic :: Text Processing :: Filters |
|||
Classifier: Topic :: Text Processing :: Markup :: HTML |
|||
Classifier: Topic :: Text Processing :: Markup :: Markdown |
|||
Requires-Python: >=3.6 |
|||
Description-Content-Type: text/markdown |
|||
Requires-Dist: importlib-metadata ; python_version < "3.8" |
|||
Provides-Extra: testing |
|||
Requires-Dist: coverage ; extra == 'testing' |
|||
Requires-Dist: pyyaml ; extra == 'testing' |
|||
|
|||
[Python-Markdown][] |
|||
=================== |
|||
|
|||
[![Build Status][build-button]][build] |
|||
[![Coverage Status][codecov-button]][codecov] |
|||
[![Latest Version][mdversion-button]][md-pypi] |
|||
[![Python Versions][pyversion-button]][md-pypi] |
|||
[![BSD License][bsdlicense-button]][bsdlicense] |
|||
[![Code of Conduct][codeofconduct-button]][Code of Conduct] |
|||
|
|||
[build-button]: https://github.com/Python-Markdown/markdown/workflows/CI/badge.svg?event=push |
|||
[build]: https://github.com/Python-Markdown/markdown/actions?query=workflow%3ACI+event%3Apush |
|||
[codecov-button]: https://codecov.io/gh/Python-Markdown/markdown/branch/master/graph/badge.svg |
|||
[codecov]: https://codecov.io/gh/Python-Markdown/markdown |
|||
[mdversion-button]: https://img.shields.io/pypi/v/Markdown.svg |
|||
[md-pypi]: https://pypi.org/project/Markdown/ |
|||
[pyversion-button]: https://img.shields.io/pypi/pyversions/Markdown.svg |
|||
[bsdlicense-button]: https://img.shields.io/badge/license-BSD-yellow.svg |
|||
[bsdlicense]: https://opensource.org/licenses/BSD-3-Clause |
|||
[codeofconduct-button]: https://img.shields.io/badge/code%20of%20conduct-contributor%20covenant-green.svg?style=flat-square |
|||
[Code of Conduct]: https://github.com/Python-Markdown/markdown/blob/master/CODE_OF_CONDUCT.md |
|||
|
|||
This is a Python implementation of John Gruber's [Markdown][]. |
|||
It is almost completely compliant with the reference implementation, |
|||
though there are a few known issues. See [Features][] for information |
|||
on what exactly is supported and what is not. Additional features are |
|||
supported by the [Available Extensions][]. |
|||
|
|||
[Python-Markdown]: https://Python-Markdown.github.io/ |
|||
[Markdown]: https://daringfireball.net/projects/markdown/ |
|||
[Features]: https://Python-Markdown.github.io#Features |
|||
[Available Extensions]: https://Python-Markdown.github.io/extensions |
|||
|
|||
Documentation |
|||
------------- |
|||
|
|||
Installation and usage documentation is available in the `docs/` directory |
|||
of the distribution and on the project website at |
|||
<https://Python-Markdown.github.io/>. |
|||
|
|||
See the change log at <https://Python-Markdown.github.io/change_log>. |
|||
|
|||
Support |
|||
------- |
|||
|
|||
You may report bugs, ask for help, and discuss various other issues on the [bug tracker][]. |
|||
|
|||
[bug tracker]: https://github.com/Python-Markdown/markdown/issues |
|||
|
|||
Code of Conduct |
|||
--------------- |
|||
|
|||
Everyone interacting in the Python-Markdown project's codebases, issue trackers, |
|||
and mailing lists is expected to follow the [Code of Conduct]. |
|||
|
|||
|
@ -0,0 +1,77 @@ |
|||
../../../bin/markdown_py,sha256=icHwfLiy95guxpA9KEZf6hKWeFf7XDbdpNSFvUNX8VA,261 |
|||
Markdown-3.3.3.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4 |
|||
Markdown-3.3.3.dist-info/LICENSE.md,sha256=bxGTy2NHGOZcOlN9biXr1hSCDsDvaTz8EiSBEmONZNo,1645 |
|||
Markdown-3.3.3.dist-info/METADATA,sha256=WHalEShUS2T2w0axy9BTbQBrS03UkpFE3vE0Ew4g_dU,4416 |
|||
Markdown-3.3.3.dist-info/RECORD,, |
|||
Markdown-3.3.3.dist-info/REQUESTED,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 |
|||
Markdown-3.3.3.dist-info/WHEEL,sha256=EVRjI69F5qVjm_YgqcTXPnTAv3BfSUr0WVAHuSP3Xoo,92 |
|||
Markdown-3.3.3.dist-info/entry_points.txt,sha256=j4jiKg-iwZGImvi8OzotZePWoFbJJ4GrfzDqH03u3SQ,1103 |
|||
Markdown-3.3.3.dist-info/top_level.txt,sha256=IAxs8x618RXoH1uCqeLLxXsDefJvE_mIibr_M4sOlyk,9 |
|||
markdown/__init__.py,sha256=002-LuHviYzROW2rg_gBGai81nMouUNO9UFj5nSsTSk,2065 |
|||
markdown/__main__.py,sha256=MpVK3zlwQ-4AzDzZmIScPB90PpunMGVgS5KBmJuHYTw,5802 |
|||
markdown/__meta__.py,sha256=7JKFgvYGgDfauq4ZK8nEMnIAbVKOg64uR7D-xt14fM0,1630 |
|||
markdown/__pycache__/__init__.cpython-311.pyc,, |
|||
markdown/__pycache__/__main__.cpython-311.pyc,, |
|||
markdown/__pycache__/__meta__.cpython-311.pyc,, |
|||
markdown/__pycache__/blockparser.cpython-311.pyc,, |
|||
markdown/__pycache__/blockprocessors.cpython-311.pyc,, |
|||
markdown/__pycache__/core.cpython-311.pyc,, |
|||
markdown/__pycache__/htmlparser.cpython-311.pyc,, |
|||
markdown/__pycache__/inlinepatterns.cpython-311.pyc,, |
|||
markdown/__pycache__/pep562.cpython-311.pyc,, |
|||
markdown/__pycache__/postprocessors.cpython-311.pyc,, |
|||
markdown/__pycache__/preprocessors.cpython-311.pyc,, |
|||
markdown/__pycache__/serializers.cpython-311.pyc,, |
|||
markdown/__pycache__/test_tools.cpython-311.pyc,, |
|||
markdown/__pycache__/treeprocessors.cpython-311.pyc,, |
|||
markdown/__pycache__/util.cpython-311.pyc,, |
|||
markdown/blockparser.py,sha256=JpBhOokOoBUGCXolftOc5m1hPcR2y9s9hVd9WSuhHzo,4285 |
|||
markdown/blockprocessors.py,sha256=U7IjfwJ4WWldfWW4Ia1epEWJKk_7g1B6GqJzB8tN4MU,24821 |
|||
markdown/core.py,sha256=4ASA3Wvs4rgk6HBiT3ScKnIyx3oVz86_-5kGe5Vs5nU,15390 |
|||
markdown/extensions/__init__.py,sha256=nw2VtafIf5zHjAcUuykQbaNY6taOmNn7ARn11-Pe080,3661 |
|||
markdown/extensions/__pycache__/__init__.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/abbr.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/admonition.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/attr_list.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/codehilite.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/def_list.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/extra.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/fenced_code.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/footnotes.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/legacy_attrs.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/legacy_em.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/md_in_html.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/meta.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/nl2br.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/sane_lists.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/smarty.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/tables.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/toc.cpython-311.pyc,, |
|||
markdown/extensions/__pycache__/wikilinks.cpython-311.pyc,, |
|||
markdown/extensions/abbr.py,sha256=5TNU5ml6-H1n-fztEkgUphSTvp5yKCXaiPZMrVuRFvo,3186 |
|||
markdown/extensions/admonition.py,sha256=Zn53VydoDM4HtCZdVKT2Zf0Kp3Dbt6E6FJiyU-tCRvc,5534 |
|||
markdown/extensions/attr_list.py,sha256=nhKFY_u6BVyKW2oMUeC4wEjqFNGpDSnNXqaohuF6M7I,5988 |
|||
markdown/extensions/codehilite.py,sha256=AVbP0Ze37v0FRmySXcsJWmGzaulKdL8w_g-HS1gr4Ag,11628 |
|||
markdown/extensions/def_list.py,sha256=p-JT64hKqMkfxlmhETMVRPxjrdnBIPDW8k3S05S-qNM,3634 |
|||
markdown/extensions/extra.py,sha256=udRN8OvSWcq3UwkPygvsFl1RlCVtCJ-ARVg2IwVH6VY,1831 |
|||
markdown/extensions/fenced_code.py,sha256=rrqPzFvxeVJpitoIXy0qMkNe53gJ0PWHoLZS44yIfeM,7305 |
|||
markdown/extensions/footnotes.py,sha256=xvT6etWuTWTHLNHXYQWQGV-35RHTCvH9kBp2xJA6Jdg,15481 |
|||
markdown/extensions/legacy_attrs.py,sha256=2EaVQkxQoNnP8_lMPvGRBdNda8L4weUQroiyEuVdS-w,2547 |
|||
markdown/extensions/legacy_em.py,sha256=18j4L6zdScy9k18y-U2zaIhYsKVTxCaPurjqLFZmWkI,1582 |
|||
markdown/extensions/md_in_html.py,sha256=XD8Mui_u2c5qUyAtkSMyiH9nSB4-t4ACrf67x7HR6Mk,14521 |
|||
markdown/extensions/meta.py,sha256=EUfkzM7l7UpH__Or9K3pl8ldVddwndlCZWA3d712RAE,2331 |
|||
markdown/extensions/nl2br.py,sha256=wAqTNOuf2L1NzlEvEqoID70n9y-aiYaGLkuyQk3CD0w,783 |
|||
markdown/extensions/sane_lists.py,sha256=ZQmCf-247KBexVG0fc62nDvokGkV6W1uavYbieNKSG4,1505 |
|||
markdown/extensions/smarty.py,sha256=0padzkVCNACainKw-Xj1S5UfT0125VCTfNejmrCZItA,10238 |
|||
markdown/extensions/tables.py,sha256=bicFx_wqhnEx6Y_8MJqA56rh71pt5fOe94oiWbvcobY,7685 |
|||
markdown/extensions/toc.py,sha256=9f0QS5K2BE-Rn0RqZ8xZO8s_xX0U8fgKajx6Jl7goiE,13681 |
|||
markdown/extensions/wikilinks.py,sha256=GkgT9BY7b1-qW--dIwFAhC9V20RoeF13b7CFdw_V21Q,2812 |
|||
markdown/htmlparser.py,sha256=gRk_Ai7w7U46Oo2xbhkLdQCjRqFp5Y8wouIJBzvo0Ts,11276 |
|||
markdown/inlinepatterns.py,sha256=cZZdzEWZhVMerELC6KGlgKUi1AEZosOmw_uJNnPscRw,29762 |
|||
markdown/pep562.py,sha256=5UkqT7sb-cQufgbOl_jF-RYUVVHS7VThzlMzR9vrd3I,8917 |
|||
markdown/postprocessors.py,sha256=o5WpNIImALhyRB40k6TQeVao9eRN_8jOz4Oe7s6nYqA,3844 |
|||
markdown/preprocessors.py,sha256=-s8QGHGlX7JAIJTfCivuc-CVwTLWs0IyEU94YUT2IvQ,2742 |
|||
markdown/serializers.py,sha256=_wQl-iJrPSUEQ4Q1owWYqN9qceVh6TOlAOH_i44BKAQ,6540 |
|||
markdown/test_tools.py,sha256=ZnDwyELUmiyYa0oQgQ31phQrWI1-X6KyRuPkPbnXan4,7750 |
|||
markdown/treeprocessors.py,sha256=gSFoKa_ec-9iPzczsOvHxlkPBvhih5AcA4Q45ZrVJeQ,15407 |
|||
markdown/util.py,sha256=CfRNpS13QDxokl7SAqmkAih6IdPoK2OcPOY8_vgUZHI,16063 |
@ -0,0 +1,5 @@ |
|||
Wheel-Version: 1.0 |
|||
Generator: bdist_wheel (0.35.1) |
|||
Root-Is-Purelib: true |
|||
Tag: py3-none-any |
|||
|
@ -0,0 +1,23 @@ |
|||
[console_scripts] |
|||
markdown_py = markdown.__main__:run |
|||
|
|||
[markdown.extensions] |
|||
abbr = markdown.extensions.abbr:AbbrExtension |
|||
admonition = markdown.extensions.admonition:AdmonitionExtension |
|||
attr_list = markdown.extensions.attr_list:AttrListExtension |
|||
codehilite = markdown.extensions.codehilite:CodeHiliteExtension |
|||
def_list = markdown.extensions.def_list:DefListExtension |
|||
extra = markdown.extensions.extra:ExtraExtension |
|||
fenced_code = markdown.extensions.fenced_code:FencedCodeExtension |
|||
footnotes = markdown.extensions.footnotes:FootnoteExtension |
|||
legacy_attrs = markdown.extensions.legacy_attrs:LegacyAttrExtension |
|||
legacy_em = markdown.extensions.legacy_em:LegacyEmExtension |
|||
md_in_html = markdown.extensions.md_in_html:MarkdownInHtmlExtension |
|||
meta = markdown.extensions.meta:MetaExtension |
|||
nl2br = markdown.extensions.nl2br:Nl2BrExtension |
|||
sane_lists = markdown.extensions.sane_lists:SaneListExtension |
|||
smarty = markdown.extensions.smarty:SmartyExtension |
|||
tables = markdown.extensions.tables:TableExtension |
|||
toc = markdown.extensions.toc:TocExtension |
|||
wikilinks = markdown.extensions.wikilinks:WikiLinkExtension |
|||
|
@ -0,0 +1 @@ |
|||
markdown |
@ -0,0 +1,98 @@ |
|||
Metadata-Version: 2.1 |
|||
Name: MarkupSafe |
|||
Version: 2.0.1 |
|||
Summary: Safely add untrusted strings to HTML/XML markup. |
|||
Home-page: https://palletsprojects.com/p/markupsafe/ |
|||
Author: Armin Ronacher |
|||
Author-email: armin.ronacher@active-4.com |
|||
Maintainer: Pallets |
|||
Maintainer-email: contact@palletsprojects.com |
|||
License: BSD-3-Clause |
|||
Project-URL: Donate, https://palletsprojects.com/donate |
|||
Project-URL: Documentation, https://markupsafe.palletsprojects.com/ |
|||
Project-URL: Changes, https://markupsafe.palletsprojects.com/changes/ |
|||
Project-URL: Source Code, https://github.com/pallets/markupsafe/ |
|||
Project-URL: Issue Tracker, https://github.com/pallets/markupsafe/issues/ |
|||
Project-URL: Twitter, https://twitter.com/PalletsTeam |
|||
Project-URL: Chat, https://discord.gg/pallets |
|||
Classifier: Development Status :: 5 - Production/Stable |
|||
Classifier: Environment :: Web Environment |
|||
Classifier: Intended Audience :: Developers |
|||
Classifier: License :: OSI Approved :: BSD License |
|||
Classifier: Operating System :: OS Independent |
|||
Classifier: Programming Language :: Python |
|||
Classifier: Topic :: Internet :: WWW/HTTP :: Dynamic Content |
|||
Classifier: Topic :: Text Processing :: Markup :: HTML |
|||
Requires-Python: >=3.6 |
|||
Description-Content-Type: text/x-rst |
|||
License-File: LICENSE.rst |
|||
|
|||
MarkupSafe |
|||
========== |
|||
|
|||
MarkupSafe implements a text object that escapes characters so it is |
|||
safe to use in HTML and XML. Characters that have special meanings are |
|||
replaced so that they display as the actual characters. This mitigates |
|||
injection attacks, meaning untrusted user input can safely be displayed |
|||
on a page. |
|||
|
|||
|
|||
Installing |
|||
---------- |
|||
|
|||
Install and update using `pip`_: |
|||
|
|||
.. code-block:: text |
|||
|
|||
pip install -U MarkupSafe |
|||
|
|||
.. _pip: https://pip.pypa.io/en/stable/quickstart/ |
|||
|
|||
|
|||
Examples |
|||
-------- |
|||
|
|||
.. code-block:: pycon |
|||
|
|||
>>> from markupsafe import Markup, escape |
|||
|
|||
>>> # escape replaces special characters and wraps in Markup |
|||
>>> escape("<script>alert(document.cookie);</script>") |
|||
Markup('<script>alert(document.cookie);</script>') |
|||
|
|||
>>> # wrap in Markup to mark text "safe" and prevent escaping |
|||
>>> Markup("<strong>Hello</strong>") |
|||
Markup('<strong>hello</strong>') |
|||
|
|||
>>> escape(Markup("<strong>Hello</strong>")) |
|||
Markup('<strong>hello</strong>') |
|||
|
|||
>>> # Markup is a str subclass |
|||
>>> # methods and operators escape their arguments |
|||
>>> template = Markup("Hello <em>{name}</em>") |
|||
>>> template.format(name='"World"') |
|||
Markup('Hello <em>"World"</em>') |
|||
|
|||
|
|||
Donate |
|||
------ |
|||
|
|||
The Pallets organization develops and supports MarkupSafe and other |
|||
popular packages. In order to grow the community of contributors and |
|||
users, and allow the maintainers to devote more time to the projects, |
|||
`please donate today`_. |
|||
|
|||
.. _please donate today: https://palletsprojects.com/donate |
|||
|
|||
|
|||
Links |
|||
----- |
|||
|
|||
- Documentation: https://markupsafe.palletsprojects.com/ |
|||
- Changes: https://markupsafe.palletsprojects.com/changes/ |
|||
- PyPI Releases: https://pypi.org/project/MarkupSafe/ |
|||
- Source Code: https://github.com/pallets/markupsafe/ |
|||
- Issue Tracker: https://github.com/pallets/markupsafe/issues/ |
|||
- Website: https://palletsprojects.com/p/markupsafe/ |
|||
- Twitter: https://twitter.com/PalletsTeam |
|||
- Chat: https://discord.gg/pallets |
@ -0,0 +1,34 @@ |
|||
CHANGES.rst |
|||
LICENSE.rst |
|||
MANIFEST.in |
|||
README.rst |
|||
setup.cfg |
|||
setup.py |
|||
tox.ini |
|||
docs/Makefile |
|||
docs/changes.rst |
|||
docs/conf.py |
|||
docs/escaping.rst |
|||
docs/formatting.rst |
|||
docs/html.rst |
|||
docs/index.rst |
|||
docs/license.rst |
|||
docs/make.bat |
|||
requirements/dev.txt |
|||
requirements/docs.txt |
|||
requirements/tests.txt |
|||
requirements/typing.txt |
|||
src/MarkupSafe.egg-info/PKG-INFO |
|||
src/MarkupSafe.egg-info/SOURCES.txt |
|||
src/MarkupSafe.egg-info/dependency_links.txt |
|||
src/MarkupSafe.egg-info/top_level.txt |
|||
src/markupsafe/__init__.py |
|||
src/markupsafe/_native.py |
|||
src/markupsafe/_speedups.c |
|||
src/markupsafe/_speedups.pyi |
|||
src/markupsafe/py.typed |
|||
tests/conftest.py |
|||
tests/test_escape.py |
|||
tests/test_exception_custom_html.py |
|||
tests/test_leak.py |
|||
tests/test_markupsafe.py |
@ -0,0 +1 @@ |
|||
|
@ -0,0 +1,12 @@ |
|||
../markupsafe/__init__.py |
|||
../markupsafe/__pycache__/__init__.cpython-311.pyc |
|||
../markupsafe/__pycache__/_native.cpython-311.pyc |
|||
../markupsafe/_native.py |
|||
../markupsafe/_speedups.c |
|||
../markupsafe/_speedups.cpython-311-x86_64-linux-gnu.so |
|||
../markupsafe/_speedups.pyi |
|||
../markupsafe/py.typed |
|||
PKG-INFO |
|||
SOURCES.txt |
|||
dependency_links.txt |
|||
top_level.txt |
@ -0,0 +1 @@ |
|||
markupsafe |
@ -0,0 +1,110 @@ |
|||
# |
|||
# The Python Imaging Library |
|||
# $Id$ |
|||
# |
|||
# bitmap distribution font (bdf) file parser |
|||
# |
|||
# history: |
|||
# 1996-05-16 fl created (as bdf2pil) |
|||
# 1997-08-25 fl converted to FontFile driver |
|||
# 2001-05-25 fl removed bogus __init__ call |
|||
# 2002-11-20 fl robustification (from Kevin Cazabon, Dmitry Vasiliev) |
|||
# 2003-04-22 fl more robustification (from Graham Dumpleton) |
|||
# |
|||
# Copyright (c) 1997-2003 by Secret Labs AB. |
|||
# Copyright (c) 1997-2003 by Fredrik Lundh. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
""" |
|||
Parse X Bitmap Distribution Format (BDF) |
|||
""" |
|||
|
|||
|
|||
from . import FontFile, Image |
|||
|
|||
bdf_slant = { |
|||
"R": "Roman", |
|||
"I": "Italic", |
|||
"O": "Oblique", |
|||
"RI": "Reverse Italic", |
|||
"RO": "Reverse Oblique", |
|||
"OT": "Other", |
|||
} |
|||
|
|||
bdf_spacing = {"P": "Proportional", "M": "Monospaced", "C": "Cell"} |
|||
|
|||
|
|||
def bdf_char(f): |
|||
# skip to STARTCHAR |
|||
while True: |
|||
s = f.readline() |
|||
if not s: |
|||
return None |
|||
if s[:9] == b"STARTCHAR": |
|||
break |
|||
id = s[9:].strip().decode("ascii") |
|||
|
|||
# load symbol properties |
|||
props = {} |
|||
while True: |
|||
s = f.readline() |
|||
if not s or s[:6] == b"BITMAP": |
|||
break |
|||
i = s.find(b" ") |
|||
props[s[:i].decode("ascii")] = s[i + 1 : -1].decode("ascii") |
|||
|
|||
# load bitmap |
|||
bitmap = [] |
|||
while True: |
|||
s = f.readline() |
|||
if not s or s[:7] == b"ENDCHAR": |
|||
break |
|||
bitmap.append(s[:-1]) |
|||
bitmap = b"".join(bitmap) |
|||
|
|||
[x, y, l, d] = [int(p) for p in props["BBX"].split()] |
|||
[dx, dy] = [int(p) for p in props["DWIDTH"].split()] |
|||
|
|||
bbox = (dx, dy), (l, -d - y, x + l, -d), (0, 0, x, y) |
|||
|
|||
try: |
|||
im = Image.frombytes("1", (x, y), bitmap, "hex", "1") |
|||
except ValueError: |
|||
# deal with zero-width characters |
|||
im = Image.new("1", (x, y)) |
|||
|
|||
return id, int(props["ENCODING"]), bbox, im |
|||
|
|||
|
|||
class BdfFontFile(FontFile.FontFile): |
|||
"""Font file plugin for the X11 BDF format.""" |
|||
|
|||
def __init__(self, fp): |
|||
super().__init__() |
|||
|
|||
s = fp.readline() |
|||
if s[:13] != b"STARTFONT 2.1": |
|||
raise SyntaxError("not a valid BDF file") |
|||
|
|||
props = {} |
|||
comments = [] |
|||
|
|||
while True: |
|||
s = fp.readline() |
|||
if not s or s[:13] == b"ENDPROPERTIES": |
|||
break |
|||
i = s.find(b" ") |
|||
props[s[:i].decode("ascii")] = s[i + 1 : -1].decode("ascii") |
|||
if s[:i] in [b"COMMENT", b"COPYRIGHT"]: |
|||
if s.find(b"LogicalFontDescription") < 0: |
|||
comments.append(s[i + 1 : -1].decode("ascii")) |
|||
|
|||
while True: |
|||
c = bdf_char(fp) |
|||
if not c: |
|||
break |
|||
id, ch, (xy, dst, src), im = c |
|||
if 0 <= ch < len(self.glyph): |
|||
self.glyph[ch] = xy, dst, src, im |
@ -0,0 +1,422 @@ |
|||
""" |
|||
Blizzard Mipmap Format (.blp) |
|||
Jerome Leclanche <jerome@leclan.ch> |
|||
|
|||
The contents of this file are hereby released in the public domain (CC0) |
|||
Full text of the CC0 license: |
|||
https://creativecommons.org/publicdomain/zero/1.0/ |
|||
|
|||
BLP1 files, used mostly in Warcraft III, are not fully supported. |
|||
All types of BLP2 files used in World of Warcraft are supported. |
|||
|
|||
The BLP file structure consists of a header, up to 16 mipmaps of the |
|||
texture |
|||
|
|||
Texture sizes must be powers of two, though the two dimensions do |
|||
not have to be equal; 512x256 is valid, but 512x200 is not. |
|||
The first mipmap (mipmap #0) is the full size image; each subsequent |
|||
mipmap halves both dimensions. The final mipmap should be 1x1. |
|||
|
|||
BLP files come in many different flavours: |
|||
* JPEG-compressed (type == 0) - only supported for BLP1. |
|||
* RAW images (type == 1, encoding == 1). Each mipmap is stored as an |
|||
array of 8-bit values, one per pixel, left to right, top to bottom. |
|||
Each value is an index to the palette. |
|||
* DXT-compressed (type == 1, encoding == 2): |
|||
- DXT1 compression is used if alpha_encoding == 0. |
|||
- An additional alpha bit is used if alpha_depth == 1. |
|||
- DXT3 compression is used if alpha_encoding == 1. |
|||
- DXT5 compression is used if alpha_encoding == 7. |
|||
""" |
|||
|
|||
import struct |
|||
from io import BytesIO |
|||
|
|||
from . import Image, ImageFile |
|||
|
|||
BLP_FORMAT_JPEG = 0 |
|||
|
|||
BLP_ENCODING_UNCOMPRESSED = 1 |
|||
BLP_ENCODING_DXT = 2 |
|||
BLP_ENCODING_UNCOMPRESSED_RAW_BGRA = 3 |
|||
|
|||
BLP_ALPHA_ENCODING_DXT1 = 0 |
|||
BLP_ALPHA_ENCODING_DXT3 = 1 |
|||
BLP_ALPHA_ENCODING_DXT5 = 7 |
|||
|
|||
|
|||
def unpack_565(i): |
|||
return (((i >> 11) & 0x1F) << 3, ((i >> 5) & 0x3F) << 2, (i & 0x1F) << 3) |
|||
|
|||
|
|||
def decode_dxt1(data, alpha=False): |
|||
""" |
|||
input: one "row" of data (i.e. will produce 4*width pixels) |
|||
""" |
|||
|
|||
blocks = len(data) // 8 # number of blocks in row |
|||
ret = (bytearray(), bytearray(), bytearray(), bytearray()) |
|||
|
|||
for block in range(blocks): |
|||
# Decode next 8-byte block. |
|||
idx = block * 8 |
|||
color0, color1, bits = struct.unpack_from("<HHI", data, idx) |
|||
|
|||
r0, g0, b0 = unpack_565(color0) |
|||
r1, g1, b1 = unpack_565(color1) |
|||
|
|||
# Decode this block into 4x4 pixels |
|||
# Accumulate the results onto our 4 row accumulators |
|||
for j in range(4): |
|||
for i in range(4): |
|||
# get next control op and generate a pixel |
|||
|
|||
control = bits & 3 |
|||
bits = bits >> 2 |
|||
|
|||
a = 0xFF |
|||
if control == 0: |
|||
r, g, b = r0, g0, b0 |
|||
elif control == 1: |
|||
r, g, b = r1, g1, b1 |
|||
elif control == 2: |
|||
if color0 > color1: |
|||
r = (2 * r0 + r1) // 3 |
|||
g = (2 * g0 + g1) // 3 |
|||
b = (2 * b0 + b1) // 3 |
|||
else: |
|||
r = (r0 + r1) // 2 |
|||
g = (g0 + g1) // 2 |
|||
b = (b0 + b1) // 2 |
|||
elif control == 3: |
|||
if color0 > color1: |
|||
r = (2 * r1 + r0) // 3 |
|||
g = (2 * g1 + g0) // 3 |
|||
b = (2 * b1 + b0) // 3 |
|||
else: |
|||
r, g, b, a = 0, 0, 0, 0 |
|||
|
|||
if alpha: |
|||
ret[j].extend([r, g, b, a]) |
|||
else: |
|||
ret[j].extend([r, g, b]) |
|||
|
|||
return ret |
|||
|
|||
|
|||
def decode_dxt3(data): |
|||
""" |
|||
input: one "row" of data (i.e. will produce 4*width pixels) |
|||
""" |
|||
|
|||
blocks = len(data) // 16 # number of blocks in row |
|||
ret = (bytearray(), bytearray(), bytearray(), bytearray()) |
|||
|
|||
for block in range(blocks): |
|||
idx = block * 16 |
|||
block = data[idx : idx + 16] |
|||
# Decode next 16-byte block. |
|||
bits = struct.unpack_from("<8B", block) |
|||
color0, color1 = struct.unpack_from("<HH", block, 8) |
|||
|
|||
(code,) = struct.unpack_from("<I", block, 12) |
|||
|
|||
r0, g0, b0 = unpack_565(color0) |
|||
r1, g1, b1 = unpack_565(color1) |
|||
|
|||
for j in range(4): |
|||
high = False # Do we want the higher bits? |
|||
for i in range(4): |
|||
alphacode_index = (4 * j + i) // 2 |
|||
a = bits[alphacode_index] |
|||
if high: |
|||
high = False |
|||
a >>= 4 |
|||
else: |
|||
high = True |
|||
a &= 0xF |
|||
a *= 17 # We get a value between 0 and 15 |
|||
|
|||
color_code = (code >> 2 * (4 * j + i)) & 0x03 |
|||
|
|||
if color_code == 0: |
|||
r, g, b = r0, g0, b0 |
|||
elif color_code == 1: |
|||
r, g, b = r1, g1, b1 |
|||
elif color_code == 2: |
|||
r = (2 * r0 + r1) // 3 |
|||
g = (2 * g0 + g1) // 3 |
|||
b = (2 * b0 + b1) // 3 |
|||
elif color_code == 3: |
|||
r = (2 * r1 + r0) // 3 |
|||
g = (2 * g1 + g0) // 3 |
|||
b = (2 * b1 + b0) // 3 |
|||
|
|||
ret[j].extend([r, g, b, a]) |
|||
|
|||
return ret |
|||
|
|||
|
|||
def decode_dxt5(data): |
|||
""" |
|||
input: one "row" of data (i.e. will produce 4 * width pixels) |
|||
""" |
|||
|
|||
blocks = len(data) // 16 # number of blocks in row |
|||
ret = (bytearray(), bytearray(), bytearray(), bytearray()) |
|||
|
|||
for block in range(blocks): |
|||
idx = block * 16 |
|||
block = data[idx : idx + 16] |
|||
# Decode next 16-byte block. |
|||
a0, a1 = struct.unpack_from("<BB", block) |
|||
|
|||
bits = struct.unpack_from("<6B", block, 2) |
|||
alphacode1 = bits[2] | (bits[3] << 8) | (bits[4] << 16) | (bits[5] << 24) |
|||
alphacode2 = bits[0] | (bits[1] << 8) |
|||
|
|||
color0, color1 = struct.unpack_from("<HH", block, 8) |
|||
|
|||
(code,) = struct.unpack_from("<I", block, 12) |
|||
|
|||
r0, g0, b0 = unpack_565(color0) |
|||
r1, g1, b1 = unpack_565(color1) |
|||
|
|||
for j in range(4): |
|||
for i in range(4): |
|||
# get next control op and generate a pixel |
|||
alphacode_index = 3 * (4 * j + i) |
|||
|
|||
if alphacode_index <= 12: |
|||
alphacode = (alphacode2 >> alphacode_index) & 0x07 |
|||
elif alphacode_index == 15: |
|||
alphacode = (alphacode2 >> 15) | ((alphacode1 << 1) & 0x06) |
|||
else: # alphacode_index >= 18 and alphacode_index <= 45 |
|||
alphacode = (alphacode1 >> (alphacode_index - 16)) & 0x07 |
|||
|
|||
if alphacode == 0: |
|||
a = a0 |
|||
elif alphacode == 1: |
|||
a = a1 |
|||
elif a0 > a1: |
|||
a = ((8 - alphacode) * a0 + (alphacode - 1) * a1) // 7 |
|||
elif alphacode == 6: |
|||
a = 0 |
|||
elif alphacode == 7: |
|||
a = 255 |
|||
else: |
|||
a = ((6 - alphacode) * a0 + (alphacode - 1) * a1) // 5 |
|||
|
|||
color_code = (code >> 2 * (4 * j + i)) & 0x03 |
|||
|
|||
if color_code == 0: |
|||
r, g, b = r0, g0, b0 |
|||
elif color_code == 1: |
|||
r, g, b = r1, g1, b1 |
|||
elif color_code == 2: |
|||
r = (2 * r0 + r1) // 3 |
|||
g = (2 * g0 + g1) // 3 |
|||
b = (2 * b0 + b1) // 3 |
|||
elif color_code == 3: |
|||
r = (2 * r1 + r0) // 3 |
|||
g = (2 * g1 + g0) // 3 |
|||
b = (2 * b1 + b0) // 3 |
|||
|
|||
ret[j].extend([r, g, b, a]) |
|||
|
|||
return ret |
|||
|
|||
|
|||
class BLPFormatError(NotImplementedError): |
|||
pass |
|||
|
|||
|
|||
class BlpImageFile(ImageFile.ImageFile): |
|||
""" |
|||
Blizzard Mipmap Format |
|||
""" |
|||
|
|||
format = "BLP" |
|||
format_description = "Blizzard Mipmap Format" |
|||
|
|||
def _open(self): |
|||
self.magic = self.fp.read(4) |
|||
self._read_blp_header() |
|||
|
|||
if self.magic == b"BLP1": |
|||
decoder = "BLP1" |
|||
self.mode = "RGB" |
|||
elif self.magic == b"BLP2": |
|||
decoder = "BLP2" |
|||
self.mode = "RGBA" if self._blp_alpha_depth else "RGB" |
|||
else: |
|||
raise BLPFormatError(f"Bad BLP magic {repr(self.magic)}") |
|||
|
|||
self.tile = [(decoder, (0, 0) + self.size, 0, (self.mode, 0, 1))] |
|||
|
|||
def _read_blp_header(self): |
|||
(self._blp_compression,) = struct.unpack("<i", self.fp.read(4)) |
|||
|
|||
(self._blp_encoding,) = struct.unpack("<b", self.fp.read(1)) |
|||
(self._blp_alpha_depth,) = struct.unpack("<b", self.fp.read(1)) |
|||
(self._blp_alpha_encoding,) = struct.unpack("<b", self.fp.read(1)) |
|||
(self._blp_mips,) = struct.unpack("<b", self.fp.read(1)) |
|||
|
|||
self._size = struct.unpack("<II", self.fp.read(8)) |
|||
|
|||
if self.magic == b"BLP1": |
|||
# Only present for BLP1 |
|||
(self._blp_encoding,) = struct.unpack("<i", self.fp.read(4)) |
|||
(self._blp_subtype,) = struct.unpack("<i", self.fp.read(4)) |
|||
|
|||
self._blp_offsets = struct.unpack("<16I", self.fp.read(16 * 4)) |
|||
self._blp_lengths = struct.unpack("<16I", self.fp.read(16 * 4)) |
|||
|
|||
|
|||
class _BLPBaseDecoder(ImageFile.PyDecoder): |
|||
_pulls_fd = True |
|||
|
|||
def decode(self, buffer): |
|||
try: |
|||
self.fd.seek(0) |
|||
self.magic = self.fd.read(4) |
|||
self._read_blp_header() |
|||
self._load() |
|||
except struct.error as e: |
|||
raise OSError("Truncated Blp file") from e |
|||
return 0, 0 |
|||
|
|||
def _read_palette(self): |
|||
ret = [] |
|||
for i in range(256): |
|||
try: |
|||
b, g, r, a = struct.unpack("<4B", self.fd.read(4)) |
|||
except struct.error: |
|||
break |
|||
ret.append((b, g, r, a)) |
|||
return ret |
|||
|
|||
def _read_blp_header(self): |
|||
(self._blp_compression,) = struct.unpack("<i", self.fd.read(4)) |
|||
|
|||
(self._blp_encoding,) = struct.unpack("<b", self.fd.read(1)) |
|||
(self._blp_alpha_depth,) = struct.unpack("<b", self.fd.read(1)) |
|||
(self._blp_alpha_encoding,) = struct.unpack("<b", self.fd.read(1)) |
|||
(self._blp_mips,) = struct.unpack("<b", self.fd.read(1)) |
|||
|
|||
self.size = struct.unpack("<II", self.fd.read(8)) |
|||
|
|||
if self.magic == b"BLP1": |
|||
# Only present for BLP1 |
|||
(self._blp_encoding,) = struct.unpack("<i", self.fd.read(4)) |
|||
(self._blp_subtype,) = struct.unpack("<i", self.fd.read(4)) |
|||
|
|||
self._blp_offsets = struct.unpack("<16I", self.fd.read(16 * 4)) |
|||
self._blp_lengths = struct.unpack("<16I", self.fd.read(16 * 4)) |
|||
|
|||
|
|||
class BLP1Decoder(_BLPBaseDecoder): |
|||
def _load(self): |
|||
if self._blp_compression == BLP_FORMAT_JPEG: |
|||
self._decode_jpeg_stream() |
|||
|
|||
elif self._blp_compression == 1: |
|||
if self._blp_encoding in (4, 5): |
|||
data = bytearray() |
|||
palette = self._read_palette() |
|||
_data = BytesIO(self.fd.read(self._blp_lengths[0])) |
|||
while True: |
|||
try: |
|||
(offset,) = struct.unpack("<B", _data.read(1)) |
|||
except struct.error: |
|||
break |
|||
b, g, r, a = palette[offset] |
|||
data.extend([r, g, b]) |
|||
|
|||
self.set_as_raw(bytes(data)) |
|||
else: |
|||
raise BLPFormatError( |
|||
f"Unsupported BLP encoding {repr(self._blp_encoding)}" |
|||
) |
|||
else: |
|||
raise BLPFormatError( |
|||
f"Unsupported BLP compression {repr(self._blp_encoding)}" |
|||
) |
|||
|
|||
def _decode_jpeg_stream(self): |
|||
from PIL.JpegImagePlugin import JpegImageFile |
|||
|
|||
(jpeg_header_size,) = struct.unpack("<I", self.fd.read(4)) |
|||
jpeg_header = self.fd.read(jpeg_header_size) |
|||
self.fd.read(self._blp_offsets[0] - self.fd.tell()) # What IS this? |
|||
data = self.fd.read(self._blp_lengths[0]) |
|||
data = jpeg_header + data |
|||
data = BytesIO(data) |
|||
image = JpegImageFile(data) |
|||
self.tile = image.tile # :/ |
|||
self.fd = image.fp |
|||
self.mode = image.mode |
|||
|
|||
|
|||
class BLP2Decoder(_BLPBaseDecoder): |
|||
def _load(self): |
|||
palette = self._read_palette() |
|||
|
|||
data = bytearray() |
|||
self.fd.seek(self._blp_offsets[0]) |
|||
|
|||
if self._blp_compression == 1: |
|||
# Uncompressed or DirectX compression |
|||
|
|||
if self._blp_encoding == BLP_ENCODING_UNCOMPRESSED: |
|||
_data = BytesIO(self.fd.read(self._blp_lengths[0])) |
|||
while True: |
|||
try: |
|||
(offset,) = struct.unpack("<B", _data.read(1)) |
|||
except struct.error: |
|||
break |
|||
b, g, r, a = palette[offset] |
|||
data.extend((r, g, b)) |
|||
|
|||
elif self._blp_encoding == BLP_ENCODING_DXT: |
|||
if self._blp_alpha_encoding == BLP_ALPHA_ENCODING_DXT1: |
|||
linesize = (self.size[0] + 3) // 4 * 8 |
|||
for yb in range((self.size[1] + 3) // 4): |
|||
for d in decode_dxt1( |
|||
self.fd.read(linesize), alpha=bool(self._blp_alpha_depth) |
|||
): |
|||
data += d |
|||
|
|||
elif self._blp_alpha_encoding == BLP_ALPHA_ENCODING_DXT3: |
|||
linesize = (self.size[0] + 3) // 4 * 16 |
|||
for yb in range((self.size[1] + 3) // 4): |
|||
for d in decode_dxt3(self.fd.read(linesize)): |
|||
data += d |
|||
|
|||
elif self._blp_alpha_encoding == BLP_ALPHA_ENCODING_DXT5: |
|||
linesize = (self.size[0] + 3) // 4 * 16 |
|||
for yb in range((self.size[1] + 3) // 4): |
|||
for d in decode_dxt5(self.fd.read(linesize)): |
|||
data += d |
|||
else: |
|||
raise BLPFormatError( |
|||
f"Unsupported alpha encoding {repr(self._blp_alpha_encoding)}" |
|||
) |
|||
else: |
|||
raise BLPFormatError(f"Unknown BLP encoding {repr(self._blp_encoding)}") |
|||
|
|||
else: |
|||
raise BLPFormatError( |
|||
f"Unknown BLP compression {repr(self._blp_compression)}" |
|||
) |
|||
|
|||
self.set_as_raw(bytes(data)) |
|||
|
|||
|
|||
Image.register_open( |
|||
BlpImageFile.format, BlpImageFile, lambda p: p[:4] in (b"BLP1", b"BLP2") |
|||
) |
|||
Image.register_extension(BlpImageFile.format, ".blp") |
|||
|
|||
Image.register_decoder("BLP1", BLP1Decoder) |
|||
Image.register_decoder("BLP2", BLP2Decoder) |
@ -0,0 +1,380 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# BMP file handler |
|||
# |
|||
# Windows (and OS/2) native bitmap storage format. |
|||
# |
|||
# history: |
|||
# 1995-09-01 fl Created |
|||
# 1996-04-30 fl Added save |
|||
# 1997-08-27 fl Fixed save of 1-bit images |
|||
# 1998-03-06 fl Load P images as L where possible |
|||
# 1998-07-03 fl Load P images as 1 where possible |
|||
# 1998-12-29 fl Handle small palettes |
|||
# 2002-12-30 fl Fixed load of 1-bit palette images |
|||
# 2003-04-21 fl Fixed load of 1-bit monochrome images |
|||
# 2003-04-23 fl Added limited support for BI_BITFIELDS compression |
|||
# |
|||
# Copyright (c) 1997-2003 by Secret Labs AB |
|||
# Copyright (c) 1995-2003 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
|
|||
from . import Image, ImageFile, ImagePalette |
|||
from ._binary import i16le as i16 |
|||
from ._binary import i32le as i32 |
|||
from ._binary import o8 |
|||
from ._binary import o16le as o16 |
|||
from ._binary import o32le as o32 |
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
# Read BMP file |
|||
|
|||
BIT2MODE = { |
|||
# bits => mode, rawmode |
|||
1: ("P", "P;1"), |
|||
4: ("P", "P;4"), |
|||
8: ("P", "P"), |
|||
16: ("RGB", "BGR;15"), |
|||
24: ("RGB", "BGR"), |
|||
32: ("RGB", "BGRX"), |
|||
} |
|||
|
|||
|
|||
def _accept(prefix): |
|||
return prefix[:2] == b"BM" |
|||
|
|||
|
|||
def _dib_accept(prefix): |
|||
return i32(prefix) in [12, 40, 64, 108, 124] |
|||
|
|||
|
|||
# ============================================================================= |
|||
# Image plugin for the Windows BMP format. |
|||
# ============================================================================= |
|||
class BmpImageFile(ImageFile.ImageFile): |
|||
""" Image plugin for the Windows Bitmap format (BMP) """ |
|||
|
|||
# ------------------------------------------------------------- Description |
|||
format_description = "Windows Bitmap" |
|||
format = "BMP" |
|||
|
|||
# -------------------------------------------------- BMP Compression values |
|||
COMPRESSIONS = {"RAW": 0, "RLE8": 1, "RLE4": 2, "BITFIELDS": 3, "JPEG": 4, "PNG": 5} |
|||
for k, v in COMPRESSIONS.items(): |
|||
vars()[k] = v |
|||
|
|||
def _bitmap(self, header=0, offset=0): |
|||
""" Read relevant info about the BMP """ |
|||
read, seek = self.fp.read, self.fp.seek |
|||
if header: |
|||
seek(header) |
|||
file_info = {} |
|||
# read bmp header size @offset 14 (this is part of the header size) |
|||
file_info["header_size"] = i32(read(4)) |
|||
file_info["direction"] = -1 |
|||
|
|||
# -------------------- If requested, read header at a specific position |
|||
# read the rest of the bmp header, without its size |
|||
header_data = ImageFile._safe_read(self.fp, file_info["header_size"] - 4) |
|||
|
|||
# -------------------------------------------------- IBM OS/2 Bitmap v1 |
|||
# ----- This format has different offsets because of width/height types |
|||
if file_info["header_size"] == 12: |
|||
file_info["width"] = i16(header_data, 0) |
|||
file_info["height"] = i16(header_data, 2) |
|||
file_info["planes"] = i16(header_data, 4) |
|||
file_info["bits"] = i16(header_data, 6) |
|||
file_info["compression"] = self.RAW |
|||
file_info["palette_padding"] = 3 |
|||
|
|||
# --------------------------------------------- Windows Bitmap v2 to v5 |
|||
# v3, OS/2 v2, v4, v5 |
|||
elif file_info["header_size"] in (40, 64, 108, 124): |
|||
file_info["y_flip"] = header_data[7] == 0xFF |
|||
file_info["direction"] = 1 if file_info["y_flip"] else -1 |
|||
file_info["width"] = i32(header_data, 0) |
|||
file_info["height"] = ( |
|||
i32(header_data, 4) |
|||
if not file_info["y_flip"] |
|||
else 2 ** 32 - i32(header_data, 4) |
|||
) |
|||
file_info["planes"] = i16(header_data, 8) |
|||
file_info["bits"] = i16(header_data, 10) |
|||
file_info["compression"] = i32(header_data, 12) |
|||
# byte size of pixel data |
|||
file_info["data_size"] = i32(header_data, 16) |
|||
file_info["pixels_per_meter"] = ( |
|||
i32(header_data, 20), |
|||
i32(header_data, 24), |
|||
) |
|||
file_info["colors"] = i32(header_data, 28) |
|||
file_info["palette_padding"] = 4 |
|||
self.info["dpi"] = tuple( |
|||
int(x / 39.3701 + 0.5) for x in file_info["pixels_per_meter"] |
|||
) |
|||
if file_info["compression"] == self.BITFIELDS: |
|||
if len(header_data) >= 52: |
|||
for idx, mask in enumerate( |
|||
["r_mask", "g_mask", "b_mask", "a_mask"] |
|||
): |
|||
file_info[mask] = i32(header_data, 36 + idx * 4) |
|||
else: |
|||
# 40 byte headers only have the three components in the |
|||
# bitfields masks, ref: |
|||
# https://msdn.microsoft.com/en-us/library/windows/desktop/dd183376(v=vs.85).aspx |
|||
# See also |
|||
# https://github.com/python-pillow/Pillow/issues/1293 |
|||
# There is a 4th component in the RGBQuad, in the alpha |
|||
# location, but it is listed as a reserved component, |
|||
# and it is not generally an alpha channel |
|||
file_info["a_mask"] = 0x0 |
|||
for mask in ["r_mask", "g_mask", "b_mask"]: |
|||
file_info[mask] = i32(read(4)) |
|||
file_info["rgb_mask"] = ( |
|||
file_info["r_mask"], |
|||
file_info["g_mask"], |
|||
file_info["b_mask"], |
|||
) |
|||
file_info["rgba_mask"] = ( |
|||
file_info["r_mask"], |
|||
file_info["g_mask"], |
|||
file_info["b_mask"], |
|||
file_info["a_mask"], |
|||
) |
|||
else: |
|||
raise OSError(f"Unsupported BMP header type ({file_info['header_size']})") |
|||
|
|||
# ------------------ Special case : header is reported 40, which |
|||
# ---------------------- is shorter than real size for bpp >= 16 |
|||
self._size = file_info["width"], file_info["height"] |
|||
|
|||
# ------- If color count was not found in the header, compute from bits |
|||
file_info["colors"] = ( |
|||
file_info["colors"] |
|||
if file_info.get("colors", 0) |
|||
else (1 << file_info["bits"]) |
|||
) |
|||
|
|||
# ---------------------- Check bit depth for unusual unsupported values |
|||
self.mode, raw_mode = BIT2MODE.get(file_info["bits"], (None, None)) |
|||
if self.mode is None: |
|||
raise OSError(f"Unsupported BMP pixel depth ({file_info['bits']})") |
|||
|
|||
# ---------------- Process BMP with Bitfields compression (not palette) |
|||
if file_info["compression"] == self.BITFIELDS: |
|||
SUPPORTED = { |
|||
32: [ |
|||
(0xFF0000, 0xFF00, 0xFF, 0x0), |
|||
(0xFF0000, 0xFF00, 0xFF, 0xFF000000), |
|||
(0xFF, 0xFF00, 0xFF0000, 0xFF000000), |
|||
(0x0, 0x0, 0x0, 0x0), |
|||
(0xFF000000, 0xFF0000, 0xFF00, 0x0), |
|||
], |
|||
24: [(0xFF0000, 0xFF00, 0xFF)], |
|||
16: [(0xF800, 0x7E0, 0x1F), (0x7C00, 0x3E0, 0x1F)], |
|||
} |
|||
MASK_MODES = { |
|||
(32, (0xFF0000, 0xFF00, 0xFF, 0x0)): "BGRX", |
|||
(32, (0xFF000000, 0xFF0000, 0xFF00, 0x0)): "XBGR", |
|||
(32, (0xFF, 0xFF00, 0xFF0000, 0xFF000000)): "RGBA", |
|||
(32, (0xFF0000, 0xFF00, 0xFF, 0xFF000000)): "BGRA", |
|||
(32, (0x0, 0x0, 0x0, 0x0)): "BGRA", |
|||
(24, (0xFF0000, 0xFF00, 0xFF)): "BGR", |
|||
(16, (0xF800, 0x7E0, 0x1F)): "BGR;16", |
|||
(16, (0x7C00, 0x3E0, 0x1F)): "BGR;15", |
|||
} |
|||
if file_info["bits"] in SUPPORTED: |
|||
if ( |
|||
file_info["bits"] == 32 |
|||
and file_info["rgba_mask"] in SUPPORTED[file_info["bits"]] |
|||
): |
|||
raw_mode = MASK_MODES[(file_info["bits"], file_info["rgba_mask"])] |
|||
self.mode = "RGBA" if "A" in raw_mode else self.mode |
|||
elif ( |
|||
file_info["bits"] in (24, 16) |
|||
and file_info["rgb_mask"] in SUPPORTED[file_info["bits"]] |
|||
): |
|||
raw_mode = MASK_MODES[(file_info["bits"], file_info["rgb_mask"])] |
|||
else: |
|||
raise OSError("Unsupported BMP bitfields layout") |
|||
else: |
|||
raise OSError("Unsupported BMP bitfields layout") |
|||
elif file_info["compression"] == self.RAW: |
|||
if file_info["bits"] == 32 and header == 22: # 32-bit .cur offset |
|||
raw_mode, self.mode = "BGRA", "RGBA" |
|||
else: |
|||
raise OSError(f"Unsupported BMP compression ({file_info['compression']})") |
|||
|
|||
# --------------- Once the header is processed, process the palette/LUT |
|||
if self.mode == "P": # Paletted for 1, 4 and 8 bit images |
|||
|
|||
# ---------------------------------------------------- 1-bit images |
|||
if not (0 < file_info["colors"] <= 65536): |
|||
raise OSError(f"Unsupported BMP Palette size ({file_info['colors']})") |
|||
else: |
|||
padding = file_info["palette_padding"] |
|||
palette = read(padding * file_info["colors"]) |
|||
greyscale = True |
|||
indices = ( |
|||
(0, 255) |
|||
if file_info["colors"] == 2 |
|||
else list(range(file_info["colors"])) |
|||
) |
|||
|
|||
# ----------------- Check if greyscale and ignore palette if so |
|||
for ind, val in enumerate(indices): |
|||
rgb = palette[ind * padding : ind * padding + 3] |
|||
if rgb != o8(val) * 3: |
|||
greyscale = False |
|||
|
|||
# ------- If all colors are grey, white or black, ditch palette |
|||
if greyscale: |
|||
self.mode = "1" if file_info["colors"] == 2 else "L" |
|||
raw_mode = self.mode |
|||
else: |
|||
self.mode = "P" |
|||
self.palette = ImagePalette.raw( |
|||
"BGRX" if padding == 4 else "BGR", palette |
|||
) |
|||
|
|||
# ---------------------------- Finally set the tile data for the plugin |
|||
self.info["compression"] = file_info["compression"] |
|||
self.tile = [ |
|||
( |
|||
"raw", |
|||
(0, 0, file_info["width"], file_info["height"]), |
|||
offset or self.fp.tell(), |
|||
( |
|||
raw_mode, |
|||
((file_info["width"] * file_info["bits"] + 31) >> 3) & (~3), |
|||
file_info["direction"], |
|||
), |
|||
) |
|||
] |
|||
|
|||
def _open(self): |
|||
""" Open file, check magic number and read header """ |
|||
# read 14 bytes: magic number, filesize, reserved, header final offset |
|||
head_data = self.fp.read(14) |
|||
# choke if the file does not have the required magic bytes |
|||
if not _accept(head_data): |
|||
raise SyntaxError("Not a BMP file") |
|||
# read the start position of the BMP image data (u32) |
|||
offset = i32(head_data, 10) |
|||
# load bitmap information (offset=raster info) |
|||
self._bitmap(offset=offset) |
|||
|
|||
|
|||
# ============================================================================= |
|||
# Image plugin for the DIB format (BMP alias) |
|||
# ============================================================================= |
|||
class DibImageFile(BmpImageFile): |
|||
|
|||
format = "DIB" |
|||
format_description = "Windows Bitmap" |
|||
|
|||
def _open(self): |
|||
self._bitmap() |
|||
|
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
# Write BMP file |
|||
|
|||
|
|||
SAVE = { |
|||
"1": ("1", 1, 2), |
|||
"L": ("L", 8, 256), |
|||
"P": ("P", 8, 256), |
|||
"RGB": ("BGR", 24, 0), |
|||
"RGBA": ("BGRA", 32, 0), |
|||
} |
|||
|
|||
|
|||
def _dib_save(im, fp, filename): |
|||
_save(im, fp, filename, False) |
|||
|
|||
|
|||
def _save(im, fp, filename, bitmap_header=True): |
|||
try: |
|||
rawmode, bits, colors = SAVE[im.mode] |
|||
except KeyError as e: |
|||
raise OSError(f"cannot write mode {im.mode} as BMP") from e |
|||
|
|||
info = im.encoderinfo |
|||
|
|||
dpi = info.get("dpi", (96, 96)) |
|||
|
|||
# 1 meter == 39.3701 inches |
|||
ppm = tuple(map(lambda x: int(x * 39.3701 + 0.5), dpi)) |
|||
|
|||
stride = ((im.size[0] * bits + 7) // 8 + 3) & (~3) |
|||
header = 40 # or 64 for OS/2 version 2 |
|||
image = stride * im.size[1] |
|||
|
|||
# bitmap header |
|||
if bitmap_header: |
|||
offset = 14 + header + colors * 4 |
|||
file_size = offset + image |
|||
if file_size > 2 ** 32 - 1: |
|||
raise ValueError("File size is too large for the BMP format") |
|||
fp.write( |
|||
b"BM" # file type (magic) |
|||
+ o32(file_size) # file size |
|||
+ o32(0) # reserved |
|||
+ o32(offset) # image data offset |
|||
) |
|||
|
|||
# bitmap info header |
|||
fp.write( |
|||
o32(header) # info header size |
|||
+ o32(im.size[0]) # width |
|||
+ o32(im.size[1]) # height |
|||
+ o16(1) # planes |
|||
+ o16(bits) # depth |
|||
+ o32(0) # compression (0=uncompressed) |
|||
+ o32(image) # size of bitmap |
|||
+ o32(ppm[0]) # resolution |
|||
+ o32(ppm[1]) # resolution |
|||
+ o32(colors) # colors used |
|||
+ o32(colors) # colors important |
|||
) |
|||
|
|||
fp.write(b"\0" * (header - 40)) # padding (for OS/2 format) |
|||
|
|||
if im.mode == "1": |
|||
for i in (0, 255): |
|||
fp.write(o8(i) * 4) |
|||
elif im.mode == "L": |
|||
for i in range(256): |
|||
fp.write(o8(i) * 4) |
|||
elif im.mode == "P": |
|||
fp.write(im.im.getpalette("RGB", "BGRX")) |
|||
|
|||
ImageFile._save(im, fp, [("raw", (0, 0) + im.size, 0, (rawmode, stride, -1))]) |
|||
|
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
# Registry |
|||
|
|||
|
|||
Image.register_open(BmpImageFile.format, BmpImageFile, _accept) |
|||
Image.register_save(BmpImageFile.format, _save) |
|||
|
|||
Image.register_extension(BmpImageFile.format, ".bmp") |
|||
|
|||
Image.register_mime(BmpImageFile.format, "image/bmp") |
|||
|
|||
Image.register_open(DibImageFile.format, DibImageFile, _dib_accept) |
|||
Image.register_save(DibImageFile.format, _dib_save) |
|||
|
|||
Image.register_extension(DibImageFile.format, ".dib") |
|||
|
|||
Image.register_mime(DibImageFile.format, "image/bmp") |
@ -0,0 +1,73 @@ |
|||
# |
|||
# The Python Imaging Library |
|||
# $Id$ |
|||
# |
|||
# BUFR stub adapter |
|||
# |
|||
# Copyright (c) 1996-2003 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
from . import Image, ImageFile |
|||
|
|||
_handler = None |
|||
|
|||
|
|||
def register_handler(handler): |
|||
""" |
|||
Install application-specific BUFR image handler. |
|||
|
|||
:param handler: Handler object. |
|||
""" |
|||
global _handler |
|||
_handler = handler |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Image adapter |
|||
|
|||
|
|||
def _accept(prefix): |
|||
return prefix[:4] == b"BUFR" or prefix[:4] == b"ZCZC" |
|||
|
|||
|
|||
class BufrStubImageFile(ImageFile.StubImageFile): |
|||
|
|||
format = "BUFR" |
|||
format_description = "BUFR" |
|||
|
|||
def _open(self): |
|||
|
|||
offset = self.fp.tell() |
|||
|
|||
if not _accept(self.fp.read(4)): |
|||
raise SyntaxError("Not a BUFR file") |
|||
|
|||
self.fp.seek(offset) |
|||
|
|||
# make something up |
|||
self.mode = "F" |
|||
self._size = 1, 1 |
|||
|
|||
loader = self._load() |
|||
if loader: |
|||
loader.open(self) |
|||
|
|||
def _load(self): |
|||
return _handler |
|||
|
|||
|
|||
def _save(im, fp, filename): |
|||
if _handler is None or not hasattr("_handler", "save"): |
|||
raise OSError("BUFR save handler not installed") |
|||
_handler.save(im, fp, filename) |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Registry |
|||
|
|||
Image.register_open(BufrStubImageFile.format, BufrStubImageFile, _accept) |
|||
Image.register_save(BufrStubImageFile.format, _save) |
|||
|
|||
Image.register_extension(BufrStubImageFile.format, ".bufr") |
@ -0,0 +1,120 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# a class to read from a container file |
|||
# |
|||
# History: |
|||
# 1995-06-18 fl Created |
|||
# 1995-09-07 fl Added readline(), readlines() |
|||
# |
|||
# Copyright (c) 1997-2001 by Secret Labs AB |
|||
# Copyright (c) 1995 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
|
|||
import io |
|||
|
|||
|
|||
class ContainerIO: |
|||
""" |
|||
A file object that provides read access to a part of an existing |
|||
file (for example a TAR file). |
|||
""" |
|||
|
|||
def __init__(self, file, offset, length): |
|||
""" |
|||
Create file object. |
|||
|
|||
:param file: Existing file. |
|||
:param offset: Start of region, in bytes. |
|||
:param length: Size of region, in bytes. |
|||
""" |
|||
self.fh = file |
|||
self.pos = 0 |
|||
self.offset = offset |
|||
self.length = length |
|||
self.fh.seek(offset) |
|||
|
|||
## |
|||
# Always false. |
|||
|
|||
def isatty(self): |
|||
return False |
|||
|
|||
def seek(self, offset, mode=io.SEEK_SET): |
|||
""" |
|||
Move file pointer. |
|||
|
|||
:param offset: Offset in bytes. |
|||
:param mode: Starting position. Use 0 for beginning of region, 1 |
|||
for current offset, and 2 for end of region. You cannot move |
|||
the pointer outside the defined region. |
|||
""" |
|||
if mode == 1: |
|||
self.pos = self.pos + offset |
|||
elif mode == 2: |
|||
self.pos = self.length + offset |
|||
else: |
|||
self.pos = offset |
|||
# clamp |
|||
self.pos = max(0, min(self.pos, self.length)) |
|||
self.fh.seek(self.offset + self.pos) |
|||
|
|||
def tell(self): |
|||
""" |
|||
Get current file pointer. |
|||
|
|||
:returns: Offset from start of region, in bytes. |
|||
""" |
|||
return self.pos |
|||
|
|||
def read(self, n=0): |
|||
""" |
|||
Read data. |
|||
|
|||
:param n: Number of bytes to read. If omitted or zero, |
|||
read until end of region. |
|||
:returns: An 8-bit string. |
|||
""" |
|||
if n: |
|||
n = min(n, self.length - self.pos) |
|||
else: |
|||
n = self.length - self.pos |
|||
if not n: # EOF |
|||
return b"" if "b" in self.fh.mode else "" |
|||
self.pos = self.pos + n |
|||
return self.fh.read(n) |
|||
|
|||
def readline(self): |
|||
""" |
|||
Read a line of text. |
|||
|
|||
:returns: An 8-bit string. |
|||
""" |
|||
s = b"" if "b" in self.fh.mode else "" |
|||
newline_character = b"\n" if "b" in self.fh.mode else "\n" |
|||
while True: |
|||
c = self.read(1) |
|||
if not c: |
|||
break |
|||
s = s + c |
|||
if c == newline_character: |
|||
break |
|||
return s |
|||
|
|||
def readlines(self): |
|||
""" |
|||
Read multiple lines of text. |
|||
|
|||
:returns: A list of 8-bit strings. |
|||
""" |
|||
lines = [] |
|||
while True: |
|||
s = self.readline() |
|||
if not s: |
|||
break |
|||
lines.append(s) |
|||
return lines |
@ -0,0 +1,75 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# Windows Cursor support for PIL |
|||
# |
|||
# notes: |
|||
# uses BmpImagePlugin.py to read the bitmap data. |
|||
# |
|||
# history: |
|||
# 96-05-27 fl Created |
|||
# |
|||
# Copyright (c) Secret Labs AB 1997. |
|||
# Copyright (c) Fredrik Lundh 1996. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
from . import BmpImagePlugin, Image |
|||
from ._binary import i16le as i16 |
|||
from ._binary import i32le as i32 |
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
|
|||
|
|||
def _accept(prefix): |
|||
return prefix[:4] == b"\0\0\2\0" |
|||
|
|||
|
|||
## |
|||
# Image plugin for Windows Cursor files. |
|||
|
|||
|
|||
class CurImageFile(BmpImagePlugin.BmpImageFile): |
|||
|
|||
format = "CUR" |
|||
format_description = "Windows Cursor" |
|||
|
|||
def _open(self): |
|||
|
|||
offset = self.fp.tell() |
|||
|
|||
# check magic |
|||
s = self.fp.read(6) |
|||
if not _accept(s): |
|||
raise SyntaxError("not a CUR file") |
|||
|
|||
# pick the largest cursor in the file |
|||
m = b"" |
|||
for i in range(i16(s, 4)): |
|||
s = self.fp.read(16) |
|||
if not m: |
|||
m = s |
|||
elif s[0] > m[0] and s[1] > m[1]: |
|||
m = s |
|||
if not m: |
|||
raise TypeError("No cursors were found") |
|||
|
|||
# load as bitmap |
|||
self._bitmap(i32(m, 12) + offset) |
|||
|
|||
# patch up the bitmap height |
|||
self._size = self.size[0], self.size[1] // 2 |
|||
d, e, o, a = self.tile[0] |
|||
self.tile[0] = d, (0, 0) + self.size, o, a |
|||
|
|||
return |
|||
|
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
|
|||
Image.register_open(CurImageFile.format, CurImageFile, _accept) |
|||
|
|||
Image.register_extension(CurImageFile.format, ".cur") |
@ -0,0 +1,89 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# DCX file handling |
|||
# |
|||
# DCX is a container file format defined by Intel, commonly used |
|||
# for fax applications. Each DCX file consists of a directory |
|||
# (a list of file offsets) followed by a set of (usually 1-bit) |
|||
# PCX files. |
|||
# |
|||
# History: |
|||
# 1995-09-09 fl Created |
|||
# 1996-03-20 fl Properly derived from PcxImageFile. |
|||
# 1998-07-15 fl Renamed offset attribute to avoid name clash |
|||
# 2002-07-30 fl Fixed file handling |
|||
# |
|||
# Copyright (c) 1997-98 by Secret Labs AB. |
|||
# Copyright (c) 1995-96 by Fredrik Lundh. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
from . import Image |
|||
from ._binary import i32le as i32 |
|||
from .PcxImagePlugin import PcxImageFile |
|||
|
|||
MAGIC = 0x3ADE68B1 # QUIZ: what's this value, then? |
|||
|
|||
|
|||
def _accept(prefix): |
|||
return len(prefix) >= 4 and i32(prefix) == MAGIC |
|||
|
|||
|
|||
## |
|||
# Image plugin for the Intel DCX format. |
|||
|
|||
|
|||
class DcxImageFile(PcxImageFile): |
|||
|
|||
format = "DCX" |
|||
format_description = "Intel DCX" |
|||
_close_exclusive_fp_after_loading = False |
|||
|
|||
def _open(self): |
|||
|
|||
# Header |
|||
s = self.fp.read(4) |
|||
if not _accept(s): |
|||
raise SyntaxError("not a DCX file") |
|||
|
|||
# Component directory |
|||
self._offset = [] |
|||
for i in range(1024): |
|||
offset = i32(self.fp.read(4)) |
|||
if not offset: |
|||
break |
|||
self._offset.append(offset) |
|||
|
|||
self.__fp = self.fp |
|||
self.frame = None |
|||
self.n_frames = len(self._offset) |
|||
self.is_animated = self.n_frames > 1 |
|||
self.seek(0) |
|||
|
|||
def seek(self, frame): |
|||
if not self._seek_check(frame): |
|||
return |
|||
self.frame = frame |
|||
self.fp = self.__fp |
|||
self.fp.seek(self._offset[frame]) |
|||
PcxImageFile._open(self) |
|||
|
|||
def tell(self): |
|||
return self.frame |
|||
|
|||
def _close__fp(self): |
|||
try: |
|||
if self.__fp != self.fp: |
|||
self.__fp.close() |
|||
except AttributeError: |
|||
pass |
|||
finally: |
|||
self.__fp = None |
|||
|
|||
|
|||
Image.register_open(DcxImageFile.format, DcxImageFile, _accept) |
|||
|
|||
Image.register_extension(DcxImageFile.format, ".dcx") |
@ -0,0 +1,190 @@ |
|||
""" |
|||
A Pillow loader for .dds files (S3TC-compressed aka DXTC) |
|||
Jerome Leclanche <jerome@leclan.ch> |
|||
|
|||
Documentation: |
|||
https://web.archive.org/web/20170802060935/http://oss.sgi.com/projects/ogl-sample/registry/EXT/texture_compression_s3tc.txt |
|||
|
|||
The contents of this file are hereby released in the public domain (CC0) |
|||
Full text of the CC0 license: |
|||
https://creativecommons.org/publicdomain/zero/1.0/ |
|||
""" |
|||
|
|||
import struct |
|||
from io import BytesIO |
|||
|
|||
from . import Image, ImageFile |
|||
|
|||
# Magic ("DDS ") |
|||
DDS_MAGIC = 0x20534444 |
|||
|
|||
# DDS flags |
|||
DDSD_CAPS = 0x1 |
|||
DDSD_HEIGHT = 0x2 |
|||
DDSD_WIDTH = 0x4 |
|||
DDSD_PITCH = 0x8 |
|||
DDSD_PIXELFORMAT = 0x1000 |
|||
DDSD_MIPMAPCOUNT = 0x20000 |
|||
DDSD_LINEARSIZE = 0x80000 |
|||
DDSD_DEPTH = 0x800000 |
|||
|
|||
# DDS caps |
|||
DDSCAPS_COMPLEX = 0x8 |
|||
DDSCAPS_TEXTURE = 0x1000 |
|||
DDSCAPS_MIPMAP = 0x400000 |
|||
|
|||
DDSCAPS2_CUBEMAP = 0x200 |
|||
DDSCAPS2_CUBEMAP_POSITIVEX = 0x400 |
|||
DDSCAPS2_CUBEMAP_NEGATIVEX = 0x800 |
|||
DDSCAPS2_CUBEMAP_POSITIVEY = 0x1000 |
|||
DDSCAPS2_CUBEMAP_NEGATIVEY = 0x2000 |
|||
DDSCAPS2_CUBEMAP_POSITIVEZ = 0x4000 |
|||
DDSCAPS2_CUBEMAP_NEGATIVEZ = 0x8000 |
|||
DDSCAPS2_VOLUME = 0x200000 |
|||
|
|||
# Pixel Format |
|||
DDPF_ALPHAPIXELS = 0x1 |
|||
DDPF_ALPHA = 0x2 |
|||
DDPF_FOURCC = 0x4 |
|||
DDPF_PALETTEINDEXED8 = 0x20 |
|||
DDPF_RGB = 0x40 |
|||
DDPF_LUMINANCE = 0x20000 |
|||
|
|||
|
|||
# dds.h |
|||
|
|||
DDS_FOURCC = DDPF_FOURCC |
|||
DDS_RGB = DDPF_RGB |
|||
DDS_RGBA = DDPF_RGB | DDPF_ALPHAPIXELS |
|||
DDS_LUMINANCE = DDPF_LUMINANCE |
|||
DDS_LUMINANCEA = DDPF_LUMINANCE | DDPF_ALPHAPIXELS |
|||
DDS_ALPHA = DDPF_ALPHA |
|||
DDS_PAL8 = DDPF_PALETTEINDEXED8 |
|||
|
|||
DDS_HEADER_FLAGS_TEXTURE = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT |
|||
DDS_HEADER_FLAGS_MIPMAP = DDSD_MIPMAPCOUNT |
|||
DDS_HEADER_FLAGS_VOLUME = DDSD_DEPTH |
|||
DDS_HEADER_FLAGS_PITCH = DDSD_PITCH |
|||
DDS_HEADER_FLAGS_LINEARSIZE = DDSD_LINEARSIZE |
|||
|
|||
DDS_HEIGHT = DDSD_HEIGHT |
|||
DDS_WIDTH = DDSD_WIDTH |
|||
|
|||
DDS_SURFACE_FLAGS_TEXTURE = DDSCAPS_TEXTURE |
|||
DDS_SURFACE_FLAGS_MIPMAP = DDSCAPS_COMPLEX | DDSCAPS_MIPMAP |
|||
DDS_SURFACE_FLAGS_CUBEMAP = DDSCAPS_COMPLEX |
|||
|
|||
DDS_CUBEMAP_POSITIVEX = DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_POSITIVEX |
|||
DDS_CUBEMAP_NEGATIVEX = DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_NEGATIVEX |
|||
DDS_CUBEMAP_POSITIVEY = DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_POSITIVEY |
|||
DDS_CUBEMAP_NEGATIVEY = DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_NEGATIVEY |
|||
DDS_CUBEMAP_POSITIVEZ = DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_POSITIVEZ |
|||
DDS_CUBEMAP_NEGATIVEZ = DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_NEGATIVEZ |
|||
|
|||
|
|||
# DXT1 |
|||
DXT1_FOURCC = 0x31545844 |
|||
|
|||
# DXT3 |
|||
DXT3_FOURCC = 0x33545844 |
|||
|
|||
# DXT5 |
|||
DXT5_FOURCC = 0x35545844 |
|||
|
|||
|
|||
# dxgiformat.h |
|||
|
|||
DXGI_FORMAT_R8G8B8A8_TYPELESS = 27 |
|||
DXGI_FORMAT_R8G8B8A8_UNORM = 28 |
|||
DXGI_FORMAT_R8G8B8A8_UNORM_SRGB = 29 |
|||
DXGI_FORMAT_BC7_TYPELESS = 97 |
|||
DXGI_FORMAT_BC7_UNORM = 98 |
|||
DXGI_FORMAT_BC7_UNORM_SRGB = 99 |
|||
|
|||
|
|||
class DdsImageFile(ImageFile.ImageFile): |
|||
format = "DDS" |
|||
format_description = "DirectDraw Surface" |
|||
|
|||
def _open(self): |
|||
magic, header_size = struct.unpack("<II", self.fp.read(8)) |
|||
if header_size != 124: |
|||
raise OSError(f"Unsupported header size {repr(header_size)}") |
|||
header_bytes = self.fp.read(header_size - 4) |
|||
if len(header_bytes) != 120: |
|||
raise OSError(f"Incomplete header: {len(header_bytes)} bytes") |
|||
header = BytesIO(header_bytes) |
|||
|
|||
flags, height, width = struct.unpack("<3I", header.read(12)) |
|||
self._size = (width, height) |
|||
self.mode = "RGBA" |
|||
|
|||
pitch, depth, mipmaps = struct.unpack("<3I", header.read(12)) |
|||
struct.unpack("<11I", header.read(44)) # reserved |
|||
|
|||
# pixel format |
|||
pfsize, pfflags = struct.unpack("<2I", header.read(8)) |
|||
fourcc = header.read(4) |
|||
(bitcount,) = struct.unpack("<I", header.read(4)) |
|||
masks = struct.unpack("<4I", header.read(16)) |
|||
if pfflags & 0x40: |
|||
# DDPF_RGB - Texture contains uncompressed RGB data |
|||
masks = {mask: ["R", "G", "B", "A"][i] for i, mask in enumerate(masks)} |
|||
rawmode = "" |
|||
if bitcount == 32: |
|||
rawmode += masks[0xFF000000] |
|||
rawmode += masks[0xFF0000] + masks[0xFF00] + masks[0xFF] |
|||
|
|||
self.tile = [("raw", (0, 0) + self.size, 0, (rawmode, 0, 1))] |
|||
else: |
|||
data_start = header_size + 4 |
|||
n = 0 |
|||
if fourcc == b"DXT1": |
|||
self.pixel_format = "DXT1" |
|||
n = 1 |
|||
elif fourcc == b"DXT3": |
|||
self.pixel_format = "DXT3" |
|||
n = 2 |
|||
elif fourcc == b"DXT5": |
|||
self.pixel_format = "DXT5" |
|||
n = 3 |
|||
elif fourcc == b"DX10": |
|||
data_start += 20 |
|||
# ignoring flags which pertain to volume textures and cubemaps |
|||
dxt10 = BytesIO(self.fp.read(20)) |
|||
dxgi_format, dimension = struct.unpack("<II", dxt10.read(8)) |
|||
if dxgi_format in (DXGI_FORMAT_BC7_TYPELESS, DXGI_FORMAT_BC7_UNORM): |
|||
self.pixel_format = "BC7" |
|||
n = 7 |
|||
elif dxgi_format == DXGI_FORMAT_BC7_UNORM_SRGB: |
|||
self.pixel_format = "BC7" |
|||
self.info["gamma"] = 1 / 2.2 |
|||
n = 7 |
|||
elif dxgi_format in ( |
|||
DXGI_FORMAT_R8G8B8A8_TYPELESS, |
|||
DXGI_FORMAT_R8G8B8A8_UNORM, |
|||
DXGI_FORMAT_R8G8B8A8_UNORM_SRGB, |
|||
): |
|||
self.tile = [("raw", (0, 0) + self.size, 0, ("RGBA", 0, 1))] |
|||
if dxgi_format == DXGI_FORMAT_R8G8B8A8_UNORM_SRGB: |
|||
self.info["gamma"] = 1 / 2.2 |
|||
return |
|||
else: |
|||
raise NotImplementedError( |
|||
f"Unimplemented DXGI format {dxgi_format}" |
|||
) |
|||
else: |
|||
raise NotImplementedError(f"Unimplemented pixel format {repr(fourcc)}") |
|||
|
|||
self.tile = [("bcn", (0, 0) + self.size, data_start, (n))] |
|||
|
|||
def load_seek(self, pos): |
|||
pass |
|||
|
|||
|
|||
def _validate(prefix): |
|||
return prefix[:4] == b"DDS " |
|||
|
|||
|
|||
Image.register_open(DdsImageFile.format, DdsImageFile, _validate) |
|||
Image.register_extension(DdsImageFile.format, ".dds") |
@ -0,0 +1,419 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# EPS file handling |
|||
# |
|||
# History: |
|||
# 1995-09-01 fl Created (0.1) |
|||
# 1996-05-18 fl Don't choke on "atend" fields, Ghostscript interface (0.2) |
|||
# 1996-08-22 fl Don't choke on floating point BoundingBox values |
|||
# 1996-08-23 fl Handle files from Macintosh (0.3) |
|||
# 2001-02-17 fl Use 're' instead of 'regex' (Python 2.1) (0.4) |
|||
# 2003-09-07 fl Check gs.close status (from Federico Di Gregorio) (0.5) |
|||
# 2014-05-07 e Handling of EPS with binary preview and fixed resolution |
|||
# resizing |
|||
# |
|||
# Copyright (c) 1997-2003 by Secret Labs AB. |
|||
# Copyright (c) 1995-2003 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
import io |
|||
import os |
|||
import re |
|||
import subprocess |
|||
import sys |
|||
import tempfile |
|||
|
|||
from . import Image, ImageFile |
|||
from ._binary import i32le as i32 |
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
|
|||
split = re.compile(r"^%%([^:]*):[ \t]*(.*)[ \t]*$") |
|||
field = re.compile(r"^%[%!\w]([^:]*)[ \t]*$") |
|||
|
|||
gs_windows_binary = None |
|||
if sys.platform.startswith("win"): |
|||
import shutil |
|||
|
|||
for binary in ("gswin32c", "gswin64c", "gs"): |
|||
if shutil.which(binary) is not None: |
|||
gs_windows_binary = binary |
|||
break |
|||
else: |
|||
gs_windows_binary = False |
|||
|
|||
|
|||
def has_ghostscript(): |
|||
if gs_windows_binary: |
|||
return True |
|||
if not sys.platform.startswith("win"): |
|||
try: |
|||
subprocess.check_call(["gs", "--version"], stdout=subprocess.DEVNULL) |
|||
return True |
|||
except OSError: |
|||
# No Ghostscript |
|||
pass |
|||
return False |
|||
|
|||
|
|||
def Ghostscript(tile, size, fp, scale=1): |
|||
"""Render an image using Ghostscript""" |
|||
|
|||
# Unpack decoder tile |
|||
decoder, tile, offset, data = tile[0] |
|||
length, bbox = data |
|||
|
|||
# Hack to support hi-res rendering |
|||
scale = int(scale) or 1 |
|||
# orig_size = size |
|||
# orig_bbox = bbox |
|||
size = (size[0] * scale, size[1] * scale) |
|||
# resolution is dependent on bbox and size |
|||
res = ( |
|||
72.0 * size[0] / (bbox[2] - bbox[0]), |
|||
72.0 * size[1] / (bbox[3] - bbox[1]), |
|||
) |
|||
|
|||
out_fd, outfile = tempfile.mkstemp() |
|||
os.close(out_fd) |
|||
|
|||
infile_temp = None |
|||
if hasattr(fp, "name") and os.path.exists(fp.name): |
|||
infile = fp.name |
|||
else: |
|||
in_fd, infile_temp = tempfile.mkstemp() |
|||
os.close(in_fd) |
|||
infile = infile_temp |
|||
|
|||
# Ignore length and offset! |
|||
# Ghostscript can read it |
|||
# Copy whole file to read in Ghostscript |
|||
with open(infile_temp, "wb") as f: |
|||
# fetch length of fp |
|||
fp.seek(0, io.SEEK_END) |
|||
fsize = fp.tell() |
|||
# ensure start position |
|||
# go back |
|||
fp.seek(0) |
|||
lengthfile = fsize |
|||
while lengthfile > 0: |
|||
s = fp.read(min(lengthfile, 100 * 1024)) |
|||
if not s: |
|||
break |
|||
lengthfile -= len(s) |
|||
f.write(s) |
|||
|
|||
# Build Ghostscript command |
|||
command = [ |
|||
"gs", |
|||
"-q", # quiet mode |
|||
"-g%dx%d" % size, # set output geometry (pixels) |
|||
"-r%fx%f" % res, # set input DPI (dots per inch) |
|||
"-dBATCH", # exit after processing |
|||
"-dNOPAUSE", # don't pause between pages |
|||
"-dSAFER", # safe mode |
|||
"-sDEVICE=ppmraw", # ppm driver |
|||
f"-sOutputFile={outfile}", # output file |
|||
# adjust for image origin |
|||
"-c", |
|||
f"{-bbox[0]} {-bbox[1]} translate", |
|||
"-f", |
|||
infile, # input file |
|||
# showpage (see https://bugs.ghostscript.com/show_bug.cgi?id=698272) |
|||
"-c", |
|||
"showpage", |
|||
] |
|||
|
|||
if gs_windows_binary is not None: |
|||
if not gs_windows_binary: |
|||
raise OSError("Unable to locate Ghostscript on paths") |
|||
command[0] = gs_windows_binary |
|||
|
|||
# push data through Ghostscript |
|||
try: |
|||
startupinfo = None |
|||
if sys.platform.startswith("win"): |
|||
startupinfo = subprocess.STARTUPINFO() |
|||
startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW |
|||
subprocess.check_call(command, startupinfo=startupinfo) |
|||
out_im = Image.open(outfile) |
|||
out_im.load() |
|||
finally: |
|||
try: |
|||
os.unlink(outfile) |
|||
if infile_temp: |
|||
os.unlink(infile_temp) |
|||
except OSError: |
|||
pass |
|||
|
|||
im = out_im.im.copy() |
|||
out_im.close() |
|||
return im |
|||
|
|||
|
|||
class PSFile: |
|||
""" |
|||
Wrapper for bytesio object that treats either CR or LF as end of line. |
|||
""" |
|||
|
|||
def __init__(self, fp): |
|||
self.fp = fp |
|||
self.char = None |
|||
|
|||
def seek(self, offset, whence=io.SEEK_SET): |
|||
self.char = None |
|||
self.fp.seek(offset, whence) |
|||
|
|||
def readline(self): |
|||
s = self.char or b"" |
|||
self.char = None |
|||
|
|||
c = self.fp.read(1) |
|||
while c not in b"\r\n": |
|||
s = s + c |
|||
c = self.fp.read(1) |
|||
|
|||
self.char = self.fp.read(1) |
|||
# line endings can be 1 or 2 of \r \n, in either order |
|||
if self.char in b"\r\n": |
|||
self.char = None |
|||
|
|||
return s.decode("latin-1") |
|||
|
|||
|
|||
def _accept(prefix): |
|||
return prefix[:4] == b"%!PS" or (len(prefix) >= 4 and i32(prefix) == 0xC6D3D0C5) |
|||
|
|||
|
|||
## |
|||
# Image plugin for Encapsulated PostScript. This plugin supports only |
|||
# a few variants of this format. |
|||
|
|||
|
|||
class EpsImageFile(ImageFile.ImageFile): |
|||
"""EPS File Parser for the Python Imaging Library""" |
|||
|
|||
format = "EPS" |
|||
format_description = "Encapsulated Postscript" |
|||
|
|||
mode_map = {1: "L", 2: "LAB", 3: "RGB", 4: "CMYK"} |
|||
|
|||
def _open(self): |
|||
(length, offset) = self._find_offset(self.fp) |
|||
|
|||
# Rewrap the open file pointer in something that will |
|||
# convert line endings and decode to latin-1. |
|||
fp = PSFile(self.fp) |
|||
|
|||
# go to offset - start of "%!PS" |
|||
fp.seek(offset) |
|||
|
|||
box = None |
|||
|
|||
self.mode = "RGB" |
|||
self._size = 1, 1 # FIXME: huh? |
|||
|
|||
# |
|||
# Load EPS header |
|||
|
|||
s_raw = fp.readline() |
|||
s = s_raw.strip("\r\n") |
|||
|
|||
while s_raw: |
|||
if s: |
|||
if len(s) > 255: |
|||
raise SyntaxError("not an EPS file") |
|||
|
|||
try: |
|||
m = split.match(s) |
|||
except re.error as e: |
|||
raise SyntaxError("not an EPS file") from e |
|||
|
|||
if m: |
|||
k, v = m.group(1, 2) |
|||
self.info[k] = v |
|||
if k == "BoundingBox": |
|||
try: |
|||
# Note: The DSC spec says that BoundingBox |
|||
# fields should be integers, but some drivers |
|||
# put floating point values there anyway. |
|||
box = [int(float(i)) for i in v.split()] |
|||
self._size = box[2] - box[0], box[3] - box[1] |
|||
self.tile = [ |
|||
("eps", (0, 0) + self.size, offset, (length, box)) |
|||
] |
|||
except Exception: |
|||
pass |
|||
|
|||
else: |
|||
m = field.match(s) |
|||
if m: |
|||
k = m.group(1) |
|||
|
|||
if k == "EndComments": |
|||
break |
|||
if k[:8] == "PS-Adobe": |
|||
self.info[k[:8]] = k[9:] |
|||
else: |
|||
self.info[k] = "" |
|||
elif s[0] == "%": |
|||
# handle non-DSC PostScript comments that some |
|||
# tools mistakenly put in the Comments section |
|||
pass |
|||
else: |
|||
raise OSError("bad EPS header") |
|||
|
|||
s_raw = fp.readline() |
|||
s = s_raw.strip("\r\n") |
|||
|
|||
if s and s[:1] != "%": |
|||
break |
|||
|
|||
# |
|||
# Scan for an "ImageData" descriptor |
|||
|
|||
while s[:1] == "%": |
|||
|
|||
if len(s) > 255: |
|||
raise SyntaxError("not an EPS file") |
|||
|
|||
if s[:11] == "%ImageData:": |
|||
# Encoded bitmapped image. |
|||
x, y, bi, mo = s[11:].split(None, 7)[:4] |
|||
|
|||
if int(bi) != 8: |
|||
break |
|||
try: |
|||
self.mode = self.mode_map[int(mo)] |
|||
except ValueError: |
|||
break |
|||
|
|||
self._size = int(x), int(y) |
|||
return |
|||
|
|||
s = fp.readline().strip("\r\n") |
|||
if not s: |
|||
break |
|||
|
|||
if not box: |
|||
raise OSError("cannot determine EPS bounding box") |
|||
|
|||
def _find_offset(self, fp): |
|||
|
|||
s = fp.read(160) |
|||
|
|||
if s[:4] == b"%!PS": |
|||
# for HEAD without binary preview |
|||
fp.seek(0, io.SEEK_END) |
|||
length = fp.tell() |
|||
offset = 0 |
|||
elif i32(s, 0) == 0xC6D3D0C5: |
|||
# FIX for: Some EPS file not handled correctly / issue #302 |
|||
# EPS can contain binary data |
|||
# or start directly with latin coding |
|||
# more info see: |
|||
# https://web.archive.org/web/20160528181353/http://partners.adobe.com/public/developer/en/ps/5002.EPSF_Spec.pdf |
|||
offset = i32(s, 4) |
|||
length = i32(s, 8) |
|||
else: |
|||
raise SyntaxError("not an EPS file") |
|||
|
|||
return (length, offset) |
|||
|
|||
def load(self, scale=1): |
|||
# Load EPS via Ghostscript |
|||
if not self.tile: |
|||
return |
|||
self.im = Ghostscript(self.tile, self.size, self.fp, scale) |
|||
self.mode = self.im.mode |
|||
self._size = self.im.size |
|||
self.tile = [] |
|||
|
|||
def load_seek(self, *args, **kwargs): |
|||
# we can't incrementally load, so force ImageFile.parser to |
|||
# use our custom load method by defining this method. |
|||
pass |
|||
|
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
|
|||
|
|||
def _save(im, fp, filename, eps=1): |
|||
"""EPS Writer for the Python Imaging Library.""" |
|||
|
|||
# |
|||
# make sure image data is available |
|||
im.load() |
|||
|
|||
# |
|||
# determine PostScript image mode |
|||
if im.mode == "L": |
|||
operator = (8, 1, "image") |
|||
elif im.mode == "RGB": |
|||
operator = (8, 3, "false 3 colorimage") |
|||
elif im.mode == "CMYK": |
|||
operator = (8, 4, "false 4 colorimage") |
|||
else: |
|||
raise ValueError("image mode is not supported") |
|||
|
|||
base_fp = fp |
|||
wrapped_fp = False |
|||
if fp != sys.stdout: |
|||
fp = io.TextIOWrapper(fp, encoding="latin-1") |
|||
wrapped_fp = True |
|||
|
|||
try: |
|||
if eps: |
|||
# |
|||
# write EPS header |
|||
fp.write("%!PS-Adobe-3.0 EPSF-3.0\n") |
|||
fp.write("%%Creator: PIL 0.1 EpsEncode\n") |
|||
# fp.write("%%CreationDate: %s"...) |
|||
fp.write("%%%%BoundingBox: 0 0 %d %d\n" % im.size) |
|||
fp.write("%%Pages: 1\n") |
|||
fp.write("%%EndComments\n") |
|||
fp.write("%%Page: 1 1\n") |
|||
fp.write("%%ImageData: %d %d " % im.size) |
|||
fp.write('%d %d 0 1 1 "%s"\n' % operator) |
|||
|
|||
# |
|||
# image header |
|||
fp.write("gsave\n") |
|||
fp.write("10 dict begin\n") |
|||
fp.write(f"/buf {im.size[0] * operator[1]} string def\n") |
|||
fp.write("%d %d scale\n" % im.size) |
|||
fp.write("%d %d 8\n" % im.size) # <= bits |
|||
fp.write(f"[{im.size[0]} 0 0 -{im.size[1]} 0 {im.size[1]}]\n") |
|||
fp.write("{ currentfile buf readhexstring pop } bind\n") |
|||
fp.write(operator[2] + "\n") |
|||
if hasattr(fp, "flush"): |
|||
fp.flush() |
|||
|
|||
ImageFile._save(im, base_fp, [("eps", (0, 0) + im.size, 0, None)]) |
|||
|
|||
fp.write("\n%%%%EndBinary\n") |
|||
fp.write("grestore end\n") |
|||
if hasattr(fp, "flush"): |
|||
fp.flush() |
|||
finally: |
|||
if wrapped_fp: |
|||
fp.detach() |
|||
|
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
|
|||
|
|||
Image.register_open(EpsImageFile.format, EpsImageFile, _accept) |
|||
|
|||
Image.register_save(EpsImageFile.format, _save) |
|||
|
|||
Image.register_extensions(EpsImageFile.format, [".ps", ".eps"]) |
|||
|
|||
Image.register_mime(EpsImageFile.format, "application/postscript") |
@ -0,0 +1,318 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# EXIF tags |
|||
# |
|||
# Copyright (c) 2003 by Secret Labs AB |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
""" |
|||
This module provides constants and clear-text names for various |
|||
well-known EXIF tags. |
|||
""" |
|||
|
|||
|
|||
TAGS = { |
|||
# possibly incomplete |
|||
0x000B: "ProcessingSoftware", |
|||
0x00FE: "NewSubfileType", |
|||
0x00FF: "SubfileType", |
|||
0x0100: "ImageWidth", |
|||
0x0101: "ImageLength", |
|||
0x0102: "BitsPerSample", |
|||
0x0103: "Compression", |
|||
0x0106: "PhotometricInterpretation", |
|||
0x0107: "Thresholding", |
|||
0x0108: "CellWidth", |
|||
0x0109: "CellLength", |
|||
0x010A: "FillOrder", |
|||
0x010D: "DocumentName", |
|||
0x010E: "ImageDescription", |
|||
0x010F: "Make", |
|||
0x0110: "Model", |
|||
0x0111: "StripOffsets", |
|||
0x0112: "Orientation", |
|||
0x0115: "SamplesPerPixel", |
|||
0x0116: "RowsPerStrip", |
|||
0x0117: "StripByteCounts", |
|||
0x0118: "MinSampleValue", |
|||
0x0119: "MaxSampleValue", |
|||
0x011A: "XResolution", |
|||
0x011B: "YResolution", |
|||
0x011C: "PlanarConfiguration", |
|||
0x011D: "PageName", |
|||
0x0120: "FreeOffsets", |
|||
0x0121: "FreeByteCounts", |
|||
0x0122: "GrayResponseUnit", |
|||
0x0123: "GrayResponseCurve", |
|||
0x0124: "T4Options", |
|||
0x0125: "T6Options", |
|||
0x0128: "ResolutionUnit", |
|||
0x0129: "PageNumber", |
|||
0x012D: "TransferFunction", |
|||
0x0131: "Software", |
|||
0x0132: "DateTime", |
|||
0x013B: "Artist", |
|||
0x013C: "HostComputer", |
|||
0x013D: "Predictor", |
|||
0x013E: "WhitePoint", |
|||
0x013F: "PrimaryChromaticities", |
|||
0x0140: "ColorMap", |
|||
0x0141: "HalftoneHints", |
|||
0x0142: "TileWidth", |
|||
0x0143: "TileLength", |
|||
0x0144: "TileOffsets", |
|||
0x0145: "TileByteCounts", |
|||
0x014A: "SubIFDs", |
|||
0x014C: "InkSet", |
|||
0x014D: "InkNames", |
|||
0x014E: "NumberOfInks", |
|||
0x0150: "DotRange", |
|||
0x0151: "TargetPrinter", |
|||
0x0152: "ExtraSamples", |
|||
0x0153: "SampleFormat", |
|||
0x0154: "SMinSampleValue", |
|||
0x0155: "SMaxSampleValue", |
|||
0x0156: "TransferRange", |
|||
0x0157: "ClipPath", |
|||
0x0158: "XClipPathUnits", |
|||
0x0159: "YClipPathUnits", |
|||
0x015A: "Indexed", |
|||
0x015B: "JPEGTables", |
|||
0x015F: "OPIProxy", |
|||
0x0200: "JPEGProc", |
|||
0x0201: "JpegIFOffset", |
|||
0x0202: "JpegIFByteCount", |
|||
0x0203: "JpegRestartInterval", |
|||
0x0205: "JpegLosslessPredictors", |
|||
0x0206: "JpegPointTransforms", |
|||
0x0207: "JpegQTables", |
|||
0x0208: "JpegDCTables", |
|||
0x0209: "JpegACTables", |
|||
0x0211: "YCbCrCoefficients", |
|||
0x0212: "YCbCrSubSampling", |
|||
0x0213: "YCbCrPositioning", |
|||
0x0214: "ReferenceBlackWhite", |
|||
0x02BC: "XMLPacket", |
|||
0x1000: "RelatedImageFileFormat", |
|||
0x1001: "RelatedImageWidth", |
|||
0x1002: "RelatedImageLength", |
|||
0x4746: "Rating", |
|||
0x4749: "RatingPercent", |
|||
0x800D: "ImageID", |
|||
0x828D: "CFARepeatPatternDim", |
|||
0x828E: "CFAPattern", |
|||
0x828F: "BatteryLevel", |
|||
0x8298: "Copyright", |
|||
0x829A: "ExposureTime", |
|||
0x829D: "FNumber", |
|||
0x83BB: "IPTCNAA", |
|||
0x8649: "ImageResources", |
|||
0x8769: "ExifOffset", |
|||
0x8773: "InterColorProfile", |
|||
0x8822: "ExposureProgram", |
|||
0x8824: "SpectralSensitivity", |
|||
0x8825: "GPSInfo", |
|||
0x8827: "ISOSpeedRatings", |
|||
0x8828: "OECF", |
|||
0x8829: "Interlace", |
|||
0x882A: "TimeZoneOffset", |
|||
0x882B: "SelfTimerMode", |
|||
0x9000: "ExifVersion", |
|||
0x9003: "DateTimeOriginal", |
|||
0x9004: "DateTimeDigitized", |
|||
0x9101: "ComponentsConfiguration", |
|||
0x9102: "CompressedBitsPerPixel", |
|||
0x9201: "ShutterSpeedValue", |
|||
0x9202: "ApertureValue", |
|||
0x9203: "BrightnessValue", |
|||
0x9204: "ExposureBiasValue", |
|||
0x9205: "MaxApertureValue", |
|||
0x9206: "SubjectDistance", |
|||
0x9207: "MeteringMode", |
|||
0x9208: "LightSource", |
|||
0x9209: "Flash", |
|||
0x920A: "FocalLength", |
|||
0x920B: "FlashEnergy", |
|||
0x920C: "SpatialFrequencyResponse", |
|||
0x920D: "Noise", |
|||
0x9211: "ImageNumber", |
|||
0x9212: "SecurityClassification", |
|||
0x9213: "ImageHistory", |
|||
0x9214: "SubjectLocation", |
|||
0x9215: "ExposureIndex", |
|||
0x9216: "TIFF/EPStandardID", |
|||
0x927C: "MakerNote", |
|||
0x9286: "UserComment", |
|||
0x9290: "SubsecTime", |
|||
0x9291: "SubsecTimeOriginal", |
|||
0x9292: "SubsecTimeDigitized", |
|||
0x9400: "AmbientTemperature", |
|||
0x9401: "Humidity", |
|||
0x9402: "Pressure", |
|||
0x9403: "WaterDepth", |
|||
0x9404: "Acceleration", |
|||
0x9405: "CameraElevationAngle", |
|||
0x9C9B: "XPTitle", |
|||
0x9C9C: "XPComment", |
|||
0x9C9D: "XPAuthor", |
|||
0x9C9E: "XPKeywords", |
|||
0x9C9F: "XPSubject", |
|||
0xA000: "FlashPixVersion", |
|||
0xA001: "ColorSpace", |
|||
0xA002: "ExifImageWidth", |
|||
0xA003: "ExifImageHeight", |
|||
0xA004: "RelatedSoundFile", |
|||
0xA005: "ExifInteroperabilityOffset", |
|||
0xA20B: "FlashEnergy", |
|||
0xA20C: "SpatialFrequencyResponse", |
|||
0xA20E: "FocalPlaneXResolution", |
|||
0xA20F: "FocalPlaneYResolution", |
|||
0xA210: "FocalPlaneResolutionUnit", |
|||
0xA214: "SubjectLocation", |
|||
0xA215: "ExposureIndex", |
|||
0xA217: "SensingMethod", |
|||
0xA300: "FileSource", |
|||
0xA301: "SceneType", |
|||
0xA302: "CFAPattern", |
|||
0xA401: "CustomRendered", |
|||
0xA402: "ExposureMode", |
|||
0xA403: "WhiteBalance", |
|||
0xA404: "DigitalZoomRatio", |
|||
0xA405: "FocalLengthIn35mmFilm", |
|||
0xA406: "SceneCaptureType", |
|||
0xA407: "GainControl", |
|||
0xA408: "Contrast", |
|||
0xA409: "Saturation", |
|||
0xA40A: "Sharpness", |
|||
0xA40B: "DeviceSettingDescription", |
|||
0xA40C: "SubjectDistanceRange", |
|||
0xA420: "ImageUniqueID", |
|||
0xA430: "CameraOwnerName", |
|||
0xA431: "BodySerialNumber", |
|||
0xA432: "LensSpecification", |
|||
0xA433: "LensMake", |
|||
0xA434: "LensModel", |
|||
0xA435: "LensSerialNumber", |
|||
0xA500: "Gamma", |
|||
0xC4A5: "PrintImageMatching", |
|||
0xC612: "DNGVersion", |
|||
0xC613: "DNGBackwardVersion", |
|||
0xC614: "UniqueCameraModel", |
|||
0xC615: "LocalizedCameraModel", |
|||
0xC616: "CFAPlaneColor", |
|||
0xC617: "CFALayout", |
|||
0xC618: "LinearizationTable", |
|||
0xC619: "BlackLevelRepeatDim", |
|||
0xC61A: "BlackLevel", |
|||
0xC61B: "BlackLevelDeltaH", |
|||
0xC61C: "BlackLevelDeltaV", |
|||
0xC61D: "WhiteLevel", |
|||
0xC61E: "DefaultScale", |
|||
0xC61F: "DefaultCropOrigin", |
|||
0xC620: "DefaultCropSize", |
|||
0xC621: "ColorMatrix1", |
|||
0xC622: "ColorMatrix2", |
|||
0xC623: "CameraCalibration1", |
|||
0xC624: "CameraCalibration2", |
|||
0xC625: "ReductionMatrix1", |
|||
0xC626: "ReductionMatrix2", |
|||
0xC627: "AnalogBalance", |
|||
0xC628: "AsShotNeutral", |
|||
0xC629: "AsShotWhiteXY", |
|||
0xC62A: "BaselineExposure", |
|||
0xC62B: "BaselineNoise", |
|||
0xC62C: "BaselineSharpness", |
|||
0xC62D: "BayerGreenSplit", |
|||
0xC62E: "LinearResponseLimit", |
|||
0xC62F: "CameraSerialNumber", |
|||
0xC630: "LensInfo", |
|||
0xC631: "ChromaBlurRadius", |
|||
0xC632: "AntiAliasStrength", |
|||
0xC633: "ShadowScale", |
|||
0xC634: "DNGPrivateData", |
|||
0xC635: "MakerNoteSafety", |
|||
0xC65A: "CalibrationIlluminant1", |
|||
0xC65B: "CalibrationIlluminant2", |
|||
0xC65C: "BestQualityScale", |
|||
0xC65D: "RawDataUniqueID", |
|||
0xC68B: "OriginalRawFileName", |
|||
0xC68C: "OriginalRawFileData", |
|||
0xC68D: "ActiveArea", |
|||
0xC68E: "MaskedAreas", |
|||
0xC68F: "AsShotICCProfile", |
|||
0xC690: "AsShotPreProfileMatrix", |
|||
0xC691: "CurrentICCProfile", |
|||
0xC692: "CurrentPreProfileMatrix", |
|||
0xC6BF: "ColorimetricReference", |
|||
0xC6F3: "CameraCalibrationSignature", |
|||
0xC6F4: "ProfileCalibrationSignature", |
|||
0xC6F6: "AsShotProfileName", |
|||
0xC6F7: "NoiseReductionApplied", |
|||
0xC6F8: "ProfileName", |
|||
0xC6F9: "ProfileHueSatMapDims", |
|||
0xC6FA: "ProfileHueSatMapData1", |
|||
0xC6FB: "ProfileHueSatMapData2", |
|||
0xC6FC: "ProfileToneCurve", |
|||
0xC6FD: "ProfileEmbedPolicy", |
|||
0xC6FE: "ProfileCopyright", |
|||
0xC714: "ForwardMatrix1", |
|||
0xC715: "ForwardMatrix2", |
|||
0xC716: "PreviewApplicationName", |
|||
0xC717: "PreviewApplicationVersion", |
|||
0xC718: "PreviewSettingsName", |
|||
0xC719: "PreviewSettingsDigest", |
|||
0xC71A: "PreviewColorSpace", |
|||
0xC71B: "PreviewDateTime", |
|||
0xC71C: "RawImageDigest", |
|||
0xC71D: "OriginalRawFileDigest", |
|||
0xC71E: "SubTileBlockSize", |
|||
0xC71F: "RowInterleaveFactor", |
|||
0xC725: "ProfileLookTableDims", |
|||
0xC726: "ProfileLookTableData", |
|||
0xC740: "OpcodeList1", |
|||
0xC741: "OpcodeList2", |
|||
0xC74E: "OpcodeList3", |
|||
0xC761: "NoiseProfile", |
|||
} |
|||
"""Maps EXIF tags to tag names.""" |
|||
|
|||
|
|||
GPSTAGS = { |
|||
0: "GPSVersionID", |
|||
1: "GPSLatitudeRef", |
|||
2: "GPSLatitude", |
|||
3: "GPSLongitudeRef", |
|||
4: "GPSLongitude", |
|||
5: "GPSAltitudeRef", |
|||
6: "GPSAltitude", |
|||
7: "GPSTimeStamp", |
|||
8: "GPSSatellites", |
|||
9: "GPSStatus", |
|||
10: "GPSMeasureMode", |
|||
11: "GPSDOP", |
|||
12: "GPSSpeedRef", |
|||
13: "GPSSpeed", |
|||
14: "GPSTrackRef", |
|||
15: "GPSTrack", |
|||
16: "GPSImgDirectionRef", |
|||
17: "GPSImgDirection", |
|||
18: "GPSMapDatum", |
|||
19: "GPSDestLatitudeRef", |
|||
20: "GPSDestLatitude", |
|||
21: "GPSDestLongitudeRef", |
|||
22: "GPSDestLongitude", |
|||
23: "GPSDestBearingRef", |
|||
24: "GPSDestBearing", |
|||
25: "GPSDestDistanceRef", |
|||
26: "GPSDestDistance", |
|||
27: "GPSProcessingMethod", |
|||
28: "GPSAreaInformation", |
|||
29: "GPSDateStamp", |
|||
30: "GPSDifferential", |
|||
31: "GPSHPositioningError", |
|||
} |
|||
"""Maps EXIF GPS tags to tag names.""" |
@ -0,0 +1,76 @@ |
|||
# |
|||
# The Python Imaging Library |
|||
# $Id$ |
|||
# |
|||
# FITS stub adapter |
|||
# |
|||
# Copyright (c) 1998-2003 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
from . import Image, ImageFile |
|||
|
|||
_handler = None |
|||
|
|||
|
|||
def register_handler(handler): |
|||
""" |
|||
Install application-specific FITS image handler. |
|||
|
|||
:param handler: Handler object. |
|||
""" |
|||
global _handler |
|||
_handler = handler |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Image adapter |
|||
|
|||
|
|||
def _accept(prefix): |
|||
return prefix[:6] == b"SIMPLE" |
|||
|
|||
|
|||
class FITSStubImageFile(ImageFile.StubImageFile): |
|||
|
|||
format = "FITS" |
|||
format_description = "FITS" |
|||
|
|||
def _open(self): |
|||
|
|||
offset = self.fp.tell() |
|||
|
|||
if not _accept(self.fp.read(6)): |
|||
raise SyntaxError("Not a FITS file") |
|||
|
|||
# FIXME: add more sanity checks here; mandatory header items |
|||
# include SIMPLE, BITPIX, NAXIS, etc. |
|||
|
|||
self.fp.seek(offset) |
|||
|
|||
# make something up |
|||
self.mode = "F" |
|||
self._size = 1, 1 |
|||
|
|||
loader = self._load() |
|||
if loader: |
|||
loader.open(self) |
|||
|
|||
def _load(self): |
|||
return _handler |
|||
|
|||
|
|||
def _save(im, fp, filename): |
|||
if _handler is None or not hasattr("_handler", "save"): |
|||
raise OSError("FITS save handler not installed") |
|||
_handler.save(im, fp, filename) |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Registry |
|||
|
|||
Image.register_open(FITSStubImageFile.format, FITSStubImageFile, _accept) |
|||
Image.register_save(FITSStubImageFile.format, _save) |
|||
|
|||
Image.register_extensions(FITSStubImageFile.format, [".fit", ".fits"]) |
@ -0,0 +1,171 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# FLI/FLC file handling. |
|||
# |
|||
# History: |
|||
# 95-09-01 fl Created |
|||
# 97-01-03 fl Fixed parser, setup decoder tile |
|||
# 98-07-15 fl Renamed offset attribute to avoid name clash |
|||
# |
|||
# Copyright (c) Secret Labs AB 1997-98. |
|||
# Copyright (c) Fredrik Lundh 1995-97. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
|
|||
from . import Image, ImageFile, ImagePalette |
|||
from ._binary import i16le as i16 |
|||
from ._binary import i32le as i32 |
|||
from ._binary import o8 |
|||
|
|||
# |
|||
# decoder |
|||
|
|||
|
|||
def _accept(prefix): |
|||
return len(prefix) >= 6 and i16(prefix, 4) in [0xAF11, 0xAF12] |
|||
|
|||
|
|||
## |
|||
# Image plugin for the FLI/FLC animation format. Use the <b>seek</b> |
|||
# method to load individual frames. |
|||
|
|||
|
|||
class FliImageFile(ImageFile.ImageFile): |
|||
|
|||
format = "FLI" |
|||
format_description = "Autodesk FLI/FLC Animation" |
|||
_close_exclusive_fp_after_loading = False |
|||
|
|||
def _open(self): |
|||
|
|||
# HEAD |
|||
s = self.fp.read(128) |
|||
if not ( |
|||
_accept(s) |
|||
and i16(s, 14) in [0, 3] # flags |
|||
and s[20:22] == b"\x00\x00" # reserved |
|||
): |
|||
raise SyntaxError("not an FLI/FLC file") |
|||
|
|||
# frames |
|||
self.n_frames = i16(s, 6) |
|||
self.is_animated = self.n_frames > 1 |
|||
|
|||
# image characteristics |
|||
self.mode = "P" |
|||
self._size = i16(s, 8), i16(s, 10) |
|||
|
|||
# animation speed |
|||
duration = i32(s, 16) |
|||
magic = i16(s, 4) |
|||
if magic == 0xAF11: |
|||
duration = (duration * 1000) // 70 |
|||
self.info["duration"] = duration |
|||
|
|||
# look for palette |
|||
palette = [(a, a, a) for a in range(256)] |
|||
|
|||
s = self.fp.read(16) |
|||
|
|||
self.__offset = 128 |
|||
|
|||
if i16(s, 4) == 0xF100: |
|||
# prefix chunk; ignore it |
|||
self.__offset = self.__offset + i32(s) |
|||
s = self.fp.read(16) |
|||
|
|||
if i16(s, 4) == 0xF1FA: |
|||
# look for palette chunk |
|||
s = self.fp.read(6) |
|||
if i16(s, 4) == 11: |
|||
self._palette(palette, 2) |
|||
elif i16(s, 4) == 4: |
|||
self._palette(palette, 0) |
|||
|
|||
palette = [o8(r) + o8(g) + o8(b) for (r, g, b) in palette] |
|||
self.palette = ImagePalette.raw("RGB", b"".join(palette)) |
|||
|
|||
# set things up to decode first frame |
|||
self.__frame = -1 |
|||
self.__fp = self.fp |
|||
self.__rewind = self.fp.tell() |
|||
self.seek(0) |
|||
|
|||
def _palette(self, palette, shift): |
|||
# load palette |
|||
|
|||
i = 0 |
|||
for e in range(i16(self.fp.read(2))): |
|||
s = self.fp.read(2) |
|||
i = i + s[0] |
|||
n = s[1] |
|||
if n == 0: |
|||
n = 256 |
|||
s = self.fp.read(n * 3) |
|||
for n in range(0, len(s), 3): |
|||
r = s[n] << shift |
|||
g = s[n + 1] << shift |
|||
b = s[n + 2] << shift |
|||
palette[i] = (r, g, b) |
|||
i += 1 |
|||
|
|||
def seek(self, frame): |
|||
if not self._seek_check(frame): |
|||
return |
|||
if frame < self.__frame: |
|||
self._seek(0) |
|||
|
|||
for f in range(self.__frame + 1, frame + 1): |
|||
self._seek(f) |
|||
|
|||
def _seek(self, frame): |
|||
if frame == 0: |
|||
self.__frame = -1 |
|||
self.__fp.seek(self.__rewind) |
|||
self.__offset = 128 |
|||
else: |
|||
# ensure that the previous frame was loaded |
|||
self.load() |
|||
|
|||
if frame != self.__frame + 1: |
|||
raise ValueError(f"cannot seek to frame {frame}") |
|||
self.__frame = frame |
|||
|
|||
# move to next frame |
|||
self.fp = self.__fp |
|||
self.fp.seek(self.__offset) |
|||
|
|||
s = self.fp.read(4) |
|||
if not s: |
|||
raise EOFError |
|||
|
|||
framesize = i32(s) |
|||
|
|||
self.decodermaxblock = framesize |
|||
self.tile = [("fli", (0, 0) + self.size, self.__offset, None)] |
|||
|
|||
self.__offset += framesize |
|||
|
|||
def tell(self): |
|||
return self.__frame |
|||
|
|||
def _close__fp(self): |
|||
try: |
|||
if self.__fp != self.fp: |
|||
self.__fp.close() |
|||
except AttributeError: |
|||
pass |
|||
finally: |
|||
self.__fp = None |
|||
|
|||
|
|||
# |
|||
# registry |
|||
|
|||
Image.register_open(FliImageFile.format, FliImageFile, _accept) |
|||
|
|||
Image.register_extensions(FliImageFile.format, [".fli", ".flc"]) |
@ -0,0 +1,111 @@ |
|||
# |
|||
# The Python Imaging Library |
|||
# $Id$ |
|||
# |
|||
# base class for raster font file parsers |
|||
# |
|||
# history: |
|||
# 1997-06-05 fl created |
|||
# 1997-08-19 fl restrict image width |
|||
# |
|||
# Copyright (c) 1997-1998 by Secret Labs AB |
|||
# Copyright (c) 1997-1998 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
|
|||
import os |
|||
|
|||
from . import Image, _binary |
|||
|
|||
WIDTH = 800 |
|||
|
|||
|
|||
def puti16(fp, values): |
|||
"""Write network order (big-endian) 16-bit sequence""" |
|||
for v in values: |
|||
if v < 0: |
|||
v += 65536 |
|||
fp.write(_binary.o16be(v)) |
|||
|
|||
|
|||
class FontFile: |
|||
"""Base class for raster font file handlers.""" |
|||
|
|||
bitmap = None |
|||
|
|||
def __init__(self): |
|||
|
|||
self.info = {} |
|||
self.glyph = [None] * 256 |
|||
|
|||
def __getitem__(self, ix): |
|||
return self.glyph[ix] |
|||
|
|||
def compile(self): |
|||
"""Create metrics and bitmap""" |
|||
|
|||
if self.bitmap: |
|||
return |
|||
|
|||
# create bitmap large enough to hold all data |
|||
h = w = maxwidth = 0 |
|||
lines = 1 |
|||
for glyph in self: |
|||
if glyph: |
|||
d, dst, src, im = glyph |
|||
h = max(h, src[3] - src[1]) |
|||
w = w + (src[2] - src[0]) |
|||
if w > WIDTH: |
|||
lines += 1 |
|||
w = src[2] - src[0] |
|||
maxwidth = max(maxwidth, w) |
|||
|
|||
xsize = maxwidth |
|||
ysize = lines * h |
|||
|
|||
if xsize == 0 and ysize == 0: |
|||
return "" |
|||
|
|||
self.ysize = h |
|||
|
|||
# paste glyphs into bitmap |
|||
self.bitmap = Image.new("1", (xsize, ysize)) |
|||
self.metrics = [None] * 256 |
|||
x = y = 0 |
|||
for i in range(256): |
|||
glyph = self[i] |
|||
if glyph: |
|||
d, dst, src, im = glyph |
|||
xx = src[2] - src[0] |
|||
# yy = src[3] - src[1] |
|||
x0, y0 = x, y |
|||
x = x + xx |
|||
if x > WIDTH: |
|||
x, y = 0, y + h |
|||
x0, y0 = x, y |
|||
x = xx |
|||
s = src[0] + x0, src[1] + y0, src[2] + x0, src[3] + y0 |
|||
self.bitmap.paste(im.crop(src), s) |
|||
self.metrics[i] = d, dst, s |
|||
|
|||
def save(self, filename): |
|||
"""Save font""" |
|||
|
|||
self.compile() |
|||
|
|||
# font data |
|||
self.bitmap.save(os.path.splitext(filename)[0] + ".pbm", "PNG") |
|||
|
|||
# font metrics |
|||
with open(os.path.splitext(filename)[0] + ".pil", "wb") as fp: |
|||
fp.write(b"PILfont\n") |
|||
fp.write(f";;;;;;{self.ysize};\n".encode("ascii")) # HACK!!! |
|||
fp.write(b"DATA\n") |
|||
for id in range(256): |
|||
m = self.metrics[id] |
|||
if not m: |
|||
puti16(fp, [0] * 10) |
|||
else: |
|||
puti16(fp, m[0] + m[1] + m[2]) |
@ -0,0 +1,242 @@ |
|||
# |
|||
# THIS IS WORK IN PROGRESS |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# FlashPix support for PIL |
|||
# |
|||
# History: |
|||
# 97-01-25 fl Created (reads uncompressed RGB images only) |
|||
# |
|||
# Copyright (c) Secret Labs AB 1997. |
|||
# Copyright (c) Fredrik Lundh 1997. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
import olefile |
|||
|
|||
from . import Image, ImageFile |
|||
from ._binary import i32le as i32 |
|||
|
|||
# we map from colour field tuples to (mode, rawmode) descriptors |
|||
MODES = { |
|||
# opacity |
|||
(0x00007FFE): ("A", "L"), |
|||
# monochrome |
|||
(0x00010000,): ("L", "L"), |
|||
(0x00018000, 0x00017FFE): ("RGBA", "LA"), |
|||
# photo YCC |
|||
(0x00020000, 0x00020001, 0x00020002): ("RGB", "YCC;P"), |
|||
(0x00028000, 0x00028001, 0x00028002, 0x00027FFE): ("RGBA", "YCCA;P"), |
|||
# standard RGB (NIFRGB) |
|||
(0x00030000, 0x00030001, 0x00030002): ("RGB", "RGB"), |
|||
(0x00038000, 0x00038001, 0x00038002, 0x00037FFE): ("RGBA", "RGBA"), |
|||
} |
|||
|
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
|
|||
|
|||
def _accept(prefix): |
|||
return prefix[:8] == olefile.MAGIC |
|||
|
|||
|
|||
## |
|||
# Image plugin for the FlashPix images. |
|||
|
|||
|
|||
class FpxImageFile(ImageFile.ImageFile): |
|||
|
|||
format = "FPX" |
|||
format_description = "FlashPix" |
|||
|
|||
def _open(self): |
|||
# |
|||
# read the OLE directory and see if this is a likely |
|||
# to be a FlashPix file |
|||
|
|||
try: |
|||
self.ole = olefile.OleFileIO(self.fp) |
|||
except OSError as e: |
|||
raise SyntaxError("not an FPX file; invalid OLE file") from e |
|||
|
|||
if self.ole.root.clsid != "56616700-C154-11CE-8553-00AA00A1F95B": |
|||
raise SyntaxError("not an FPX file; bad root CLSID") |
|||
|
|||
self._open_index(1) |
|||
|
|||
def _open_index(self, index=1): |
|||
# |
|||
# get the Image Contents Property Set |
|||
|
|||
prop = self.ole.getproperties( |
|||
[f"Data Object Store {index:06d}", "\005Image Contents"] |
|||
) |
|||
|
|||
# size (highest resolution) |
|||
|
|||
self._size = prop[0x1000002], prop[0x1000003] |
|||
|
|||
size = max(self.size) |
|||
i = 1 |
|||
while size > 64: |
|||
size = size / 2 |
|||
i += 1 |
|||
self.maxid = i - 1 |
|||
|
|||
# mode. instead of using a single field for this, flashpix |
|||
# requires you to specify the mode for each channel in each |
|||
# resolution subimage, and leaves it to the decoder to make |
|||
# sure that they all match. for now, we'll cheat and assume |
|||
# that this is always the case. |
|||
|
|||
id = self.maxid << 16 |
|||
|
|||
s = prop[0x2000002 | id] |
|||
|
|||
colors = [] |
|||
bands = i32(s, 4) |
|||
if bands > 4: |
|||
raise OSError("Invalid number of bands") |
|||
for i in range(bands): |
|||
# note: for now, we ignore the "uncalibrated" flag |
|||
colors.append(i32(s, 8 + i * 4) & 0x7FFFFFFF) |
|||
|
|||
self.mode, self.rawmode = MODES[tuple(colors)] |
|||
|
|||
# load JPEG tables, if any |
|||
self.jpeg = {} |
|||
for i in range(256): |
|||
id = 0x3000001 | (i << 16) |
|||
if id in prop: |
|||
self.jpeg[i] = prop[id] |
|||
|
|||
self._open_subimage(1, self.maxid) |
|||
|
|||
def _open_subimage(self, index=1, subimage=0): |
|||
# |
|||
# setup tile descriptors for a given subimage |
|||
|
|||
stream = [ |
|||
f"Data Object Store {index:06d}", |
|||
f"Resolution {subimage:04d}", |
|||
"Subimage 0000 Header", |
|||
] |
|||
|
|||
fp = self.ole.openstream(stream) |
|||
|
|||
# skip prefix |
|||
fp.read(28) |
|||
|
|||
# header stream |
|||
s = fp.read(36) |
|||
|
|||
size = i32(s, 4), i32(s, 8) |
|||
# tilecount = i32(s, 12) |
|||
tilesize = i32(s, 16), i32(s, 20) |
|||
# channels = i32(s, 24) |
|||
offset = i32(s, 28) |
|||
length = i32(s, 32) |
|||
|
|||
if size != self.size: |
|||
raise OSError("subimage mismatch") |
|||
|
|||
# get tile descriptors |
|||
fp.seek(28 + offset) |
|||
s = fp.read(i32(s, 12) * length) |
|||
|
|||
x = y = 0 |
|||
xsize, ysize = size |
|||
xtile, ytile = tilesize |
|||
self.tile = [] |
|||
|
|||
for i in range(0, len(s), length): |
|||
|
|||
compression = i32(s, i + 8) |
|||
|
|||
if compression == 0: |
|||
self.tile.append( |
|||
( |
|||
"raw", |
|||
(x, y, x + xtile, y + ytile), |
|||
i32(s, i) + 28, |
|||
(self.rawmode), |
|||
) |
|||
) |
|||
|
|||
elif compression == 1: |
|||
|
|||
# FIXME: the fill decoder is not implemented |
|||
self.tile.append( |
|||
( |
|||
"fill", |
|||
(x, y, x + xtile, y + ytile), |
|||
i32(s, i) + 28, |
|||
(self.rawmode, s[12:16]), |
|||
) |
|||
) |
|||
|
|||
elif compression == 2: |
|||
|
|||
internal_color_conversion = s[14] |
|||
jpeg_tables = s[15] |
|||
rawmode = self.rawmode |
|||
|
|||
if internal_color_conversion: |
|||
# The image is stored as usual (usually YCbCr). |
|||
if rawmode == "RGBA": |
|||
# For "RGBA", data is stored as YCbCrA based on |
|||
# negative RGB. The following trick works around |
|||
# this problem : |
|||
jpegmode, rawmode = "YCbCrK", "CMYK" |
|||
else: |
|||
jpegmode = None # let the decoder decide |
|||
|
|||
else: |
|||
# The image is stored as defined by rawmode |
|||
jpegmode = rawmode |
|||
|
|||
self.tile.append( |
|||
( |
|||
"jpeg", |
|||
(x, y, x + xtile, y + ytile), |
|||
i32(s, i) + 28, |
|||
(rawmode, jpegmode), |
|||
) |
|||
) |
|||
|
|||
# FIXME: jpeg tables are tile dependent; the prefix |
|||
# data must be placed in the tile descriptor itself! |
|||
|
|||
if jpeg_tables: |
|||
self.tile_prefix = self.jpeg[jpeg_tables] |
|||
|
|||
else: |
|||
raise OSError("unknown/invalid compression") |
|||
|
|||
x = x + xtile |
|||
if x >= xsize: |
|||
x, y = 0, y + ytile |
|||
if y >= ysize: |
|||
break # isn't really required |
|||
|
|||
self.stream = stream |
|||
self.fp = None |
|||
|
|||
def load(self): |
|||
|
|||
if not self.fp: |
|||
self.fp = self.ole.openstream(self.stream[:2] + ["Subimage 0000 Data"]) |
|||
|
|||
return ImageFile.ImageFile.load(self) |
|||
|
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
|
|||
|
|||
Image.register_open(FpxImageFile.format, FpxImageFile, _accept) |
|||
|
|||
Image.register_extension(FpxImageFile.format, ".fpx") |
@ -0,0 +1,106 @@ |
|||
""" |
|||
A Pillow loader for .ftc and .ftu files (FTEX) |
|||
Jerome Leclanche <jerome@leclan.ch> |
|||
|
|||
The contents of this file are hereby released in the public domain (CC0) |
|||
Full text of the CC0 license: |
|||
https://creativecommons.org/publicdomain/zero/1.0/ |
|||
|
|||
Independence War 2: Edge Of Chaos - Texture File Format - 16 October 2001 |
|||
|
|||
The textures used for 3D objects in Independence War 2: Edge Of Chaos are in a |
|||
packed custom format called FTEX. This file format uses file extensions FTC |
|||
and FTU. |
|||
* FTC files are compressed textures (using standard texture compression). |
|||
* FTU files are not compressed. |
|||
Texture File Format |
|||
The FTC and FTU texture files both use the same format. This |
|||
has the following structure: |
|||
{header} |
|||
{format_directory} |
|||
{data} |
|||
Where: |
|||
{header} = { |
|||
u32:magic, |
|||
u32:version, |
|||
u32:width, |
|||
u32:height, |
|||
u32:mipmap_count, |
|||
u32:format_count |
|||
} |
|||
|
|||
* The "magic" number is "FTEX". |
|||
* "width" and "height" are the dimensions of the texture. |
|||
* "mipmap_count" is the number of mipmaps in the texture. |
|||
* "format_count" is the number of texture formats (different versions of the |
|||
same texture) in this file. |
|||
|
|||
{format_directory} = format_count * { u32:format, u32:where } |
|||
|
|||
The format value is 0 for DXT1 compressed textures and 1 for 24-bit RGB |
|||
uncompressed textures. |
|||
The texture data for a format starts at the position "where" in the file. |
|||
|
|||
Each set of texture data in the file has the following structure: |
|||
{data} = format_count * { u32:mipmap_size, mipmap_size * { u8 } } |
|||
* "mipmap_size" is the number of bytes in that mip level. For compressed |
|||
textures this is the size of the texture data compressed with DXT1. For 24 bit |
|||
uncompressed textures, this is 3 * width * height. Following this are the image |
|||
bytes for that mipmap level. |
|||
|
|||
Note: All data is stored in little-Endian (Intel) byte order. |
|||
""" |
|||
|
|||
import struct |
|||
from io import BytesIO |
|||
|
|||
from . import Image, ImageFile |
|||
|
|||
MAGIC = b"FTEX" |
|||
FORMAT_DXT1 = 0 |
|||
FORMAT_UNCOMPRESSED = 1 |
|||
|
|||
|
|||
class FtexImageFile(ImageFile.ImageFile): |
|||
format = "FTEX" |
|||
format_description = "Texture File Format (IW2:EOC)" |
|||
|
|||
def _open(self): |
|||
struct.unpack("<I", self.fp.read(4)) # magic |
|||
struct.unpack("<i", self.fp.read(4)) # version |
|||
self._size = struct.unpack("<2i", self.fp.read(8)) |
|||
mipmap_count, format_count = struct.unpack("<2i", self.fp.read(8)) |
|||
|
|||
self.mode = "RGB" |
|||
|
|||
# Only support single-format files. |
|||
# I don't know of any multi-format file. |
|||
assert format_count == 1 |
|||
|
|||
format, where = struct.unpack("<2i", self.fp.read(8)) |
|||
self.fp.seek(where) |
|||
(mipmap_size,) = struct.unpack("<i", self.fp.read(4)) |
|||
|
|||
data = self.fp.read(mipmap_size) |
|||
|
|||
if format == FORMAT_DXT1: |
|||
self.mode = "RGBA" |
|||
self.tile = [("bcn", (0, 0) + self.size, 0, (1))] |
|||
elif format == FORMAT_UNCOMPRESSED: |
|||
self.tile = [("raw", (0, 0) + self.size, 0, ("RGB", 0, 1))] |
|||
else: |
|||
raise ValueError(f"Invalid texture compression format: {repr(format)}") |
|||
|
|||
self.fp.close() |
|||
self.fp = BytesIO(data) |
|||
|
|||
def load_seek(self, pos): |
|||
pass |
|||
|
|||
|
|||
def _validate(prefix): |
|||
return prefix[:4] == MAGIC |
|||
|
|||
|
|||
Image.register_open(FtexImageFile.format, FtexImageFile, _validate) |
|||
Image.register_extensions(FtexImageFile.format, [".ftc", ".ftu"]) |
@ -0,0 +1,100 @@ |
|||
# |
|||
# The Python Imaging Library |
|||
# |
|||
# load a GIMP brush file |
|||
# |
|||
# History: |
|||
# 96-03-14 fl Created |
|||
# 16-01-08 es Version 2 |
|||
# |
|||
# Copyright (c) Secret Labs AB 1997. |
|||
# Copyright (c) Fredrik Lundh 1996. |
|||
# Copyright (c) Eric Soroos 2016. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
# |
|||
# See https://github.com/GNOME/gimp/blob/mainline/devel-docs/gbr.txt for |
|||
# format documentation. |
|||
# |
|||
# This code Interprets version 1 and 2 .gbr files. |
|||
# Version 1 files are obsolete, and should not be used for new |
|||
# brushes. |
|||
# Version 2 files are saved by GIMP v2.8 (at least) |
|||
# Version 3 files have a format specifier of 18 for 16bit floats in |
|||
# the color depth field. This is currently unsupported by Pillow. |
|||
|
|||
from . import Image, ImageFile |
|||
from ._binary import i32be as i32 |
|||
|
|||
|
|||
def _accept(prefix): |
|||
return len(prefix) >= 8 and i32(prefix, 0) >= 20 and i32(prefix, 4) in (1, 2) |
|||
|
|||
|
|||
## |
|||
# Image plugin for the GIMP brush format. |
|||
|
|||
|
|||
class GbrImageFile(ImageFile.ImageFile): |
|||
|
|||
format = "GBR" |
|||
format_description = "GIMP brush file" |
|||
|
|||
def _open(self): |
|||
header_size = i32(self.fp.read(4)) |
|||
version = i32(self.fp.read(4)) |
|||
if header_size < 20: |
|||
raise SyntaxError("not a GIMP brush") |
|||
if version not in (1, 2): |
|||
raise SyntaxError(f"Unsupported GIMP brush version: {version}") |
|||
|
|||
width = i32(self.fp.read(4)) |
|||
height = i32(self.fp.read(4)) |
|||
color_depth = i32(self.fp.read(4)) |
|||
if width <= 0 or height <= 0: |
|||
raise SyntaxError("not a GIMP brush") |
|||
if color_depth not in (1, 4): |
|||
raise SyntaxError(f"Unsupported GIMP brush color depth: {color_depth}") |
|||
|
|||
if version == 1: |
|||
comment_length = header_size - 20 |
|||
else: |
|||
comment_length = header_size - 28 |
|||
magic_number = self.fp.read(4) |
|||
if magic_number != b"GIMP": |
|||
raise SyntaxError("not a GIMP brush, bad magic number") |
|||
self.info["spacing"] = i32(self.fp.read(4)) |
|||
|
|||
comment = self.fp.read(comment_length)[:-1] |
|||
|
|||
if color_depth == 1: |
|||
self.mode = "L" |
|||
else: |
|||
self.mode = "RGBA" |
|||
|
|||
self._size = width, height |
|||
|
|||
self.info["comment"] = comment |
|||
|
|||
# Image might not be small |
|||
Image._decompression_bomb_check(self.size) |
|||
|
|||
# Data is an uncompressed block of w * h * bytes/pixel |
|||
self._data_size = width * height * color_depth |
|||
|
|||
def load(self): |
|||
if self.im: |
|||
# Already loaded |
|||
return |
|||
|
|||
self.im = Image.core.new(self.mode, self.size) |
|||
self.frombytes(self.fp.read(self._data_size)) |
|||
|
|||
|
|||
# |
|||
# registry |
|||
|
|||
|
|||
Image.register_open(GbrImageFile.format, GbrImageFile, _accept) |
|||
Image.register_extension(GbrImageFile.format, ".gbr") |
@ -0,0 +1,90 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# GD file handling |
|||
# |
|||
# History: |
|||
# 1996-04-12 fl Created |
|||
# |
|||
# Copyright (c) 1997 by Secret Labs AB. |
|||
# Copyright (c) 1996 by Fredrik Lundh. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
|
|||
""" |
|||
.. note:: |
|||
This format cannot be automatically recognized, so the |
|||
class is not registered for use with :py:func:`PIL.Image.open()`. To open a |
|||
gd file, use the :py:func:`PIL.GdImageFile.open()` function instead. |
|||
|
|||
.. warning:: |
|||
THE GD FORMAT IS NOT DESIGNED FOR DATA INTERCHANGE. This |
|||
implementation is provided for convenience and demonstrational |
|||
purposes only. |
|||
""" |
|||
|
|||
|
|||
from . import ImageFile, ImagePalette, UnidentifiedImageError |
|||
from ._binary import i16be as i16 |
|||
from ._binary import i32be as i32 |
|||
|
|||
|
|||
class GdImageFile(ImageFile.ImageFile): |
|||
""" |
|||
Image plugin for the GD uncompressed format. Note that this format |
|||
is not supported by the standard :py:func:`PIL.Image.open()` function. To use |
|||
this plugin, you have to import the :py:mod:`PIL.GdImageFile` module and |
|||
use the :py:func:`PIL.GdImageFile.open()` function. |
|||
""" |
|||
|
|||
format = "GD" |
|||
format_description = "GD uncompressed images" |
|||
|
|||
def _open(self): |
|||
|
|||
# Header |
|||
s = self.fp.read(1037) |
|||
|
|||
if not i16(s) in [65534, 65535]: |
|||
raise SyntaxError("Not a valid GD 2.x .gd file") |
|||
|
|||
self.mode = "L" # FIXME: "P" |
|||
self._size = i16(s, 2), i16(s, 4) |
|||
|
|||
trueColor = s[6] |
|||
trueColorOffset = 2 if trueColor else 0 |
|||
|
|||
# transparency index |
|||
tindex = i32(s, 7 + trueColorOffset) |
|||
if tindex < 256: |
|||
self.info["transparency"] = tindex |
|||
|
|||
self.palette = ImagePalette.raw( |
|||
"XBGR", s[7 + trueColorOffset + 4 : 7 + trueColorOffset + 4 + 256 * 4] |
|||
) |
|||
|
|||
self.tile = [ |
|||
("raw", (0, 0) + self.size, 7 + trueColorOffset + 4 + 256 * 4, ("L", 0, 1)) |
|||
] |
|||
|
|||
|
|||
def open(fp, mode="r"): |
|||
""" |
|||
Load texture from a GD image file. |
|||
|
|||
:param filename: GD file name, or an opened file handle. |
|||
:param mode: Optional mode. In this version, if the mode argument |
|||
is given, it must be "r". |
|||
:returns: An image instance. |
|||
:raises OSError: If the image could not be read. |
|||
""" |
|||
if mode != "r": |
|||
raise ValueError("bad mode") |
|||
|
|||
try: |
|||
return GdImageFile(fp) |
|||
except SyntaxError as e: |
|||
raise UnidentifiedImageError("cannot identify this image file") from e |
@ -0,0 +1,888 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# GIF file handling |
|||
# |
|||
# History: |
|||
# 1995-09-01 fl Created |
|||
# 1996-12-14 fl Added interlace support |
|||
# 1996-12-30 fl Added animation support |
|||
# 1997-01-05 fl Added write support, fixed local colour map bug |
|||
# 1997-02-23 fl Make sure to load raster data in getdata() |
|||
# 1997-07-05 fl Support external decoder (0.4) |
|||
# 1998-07-09 fl Handle all modes when saving (0.5) |
|||
# 1998-07-15 fl Renamed offset attribute to avoid name clash |
|||
# 2001-04-16 fl Added rewind support (seek to frame 0) (0.6) |
|||
# 2001-04-17 fl Added palette optimization (0.7) |
|||
# 2002-06-06 fl Added transparency support for save (0.8) |
|||
# 2004-02-24 fl Disable interlacing for small images |
|||
# |
|||
# Copyright (c) 1997-2004 by Secret Labs AB |
|||
# Copyright (c) 1995-2004 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
import itertools |
|||
import math |
|||
import os |
|||
import subprocess |
|||
|
|||
from . import Image, ImageChops, ImageFile, ImagePalette, ImageSequence |
|||
from ._binary import i16le as i16 |
|||
from ._binary import o8 |
|||
from ._binary import o16le as o16 |
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Identify/read GIF files |
|||
|
|||
|
|||
def _accept(prefix): |
|||
return prefix[:6] in [b"GIF87a", b"GIF89a"] |
|||
|
|||
|
|||
## |
|||
# Image plugin for GIF images. This plugin supports both GIF87 and |
|||
# GIF89 images. |
|||
|
|||
|
|||
class GifImageFile(ImageFile.ImageFile): |
|||
|
|||
format = "GIF" |
|||
format_description = "Compuserve GIF" |
|||
_close_exclusive_fp_after_loading = False |
|||
|
|||
global_palette = None |
|||
|
|||
def data(self): |
|||
s = self.fp.read(1) |
|||
if s and s[0]: |
|||
return self.fp.read(s[0]) |
|||
return None |
|||
|
|||
def _open(self): |
|||
|
|||
# Screen |
|||
s = self.fp.read(13) |
|||
if not _accept(s): |
|||
raise SyntaxError("not a GIF file") |
|||
|
|||
self.info["version"] = s[:6] |
|||
self._size = i16(s, 6), i16(s, 8) |
|||
self.tile = [] |
|||
flags = s[10] |
|||
bits = (flags & 7) + 1 |
|||
|
|||
if flags & 128: |
|||
# get global palette |
|||
self.info["background"] = s[11] |
|||
# check if palette contains colour indices |
|||
p = self.fp.read(3 << bits) |
|||
for i in range(0, len(p), 3): |
|||
if not (i // 3 == p[i] == p[i + 1] == p[i + 2]): |
|||
p = ImagePalette.raw("RGB", p) |
|||
self.global_palette = self.palette = p |
|||
break |
|||
|
|||
self.__fp = self.fp # FIXME: hack |
|||
self.__rewind = self.fp.tell() |
|||
self._n_frames = None |
|||
self._is_animated = None |
|||
self._seek(0) # get ready to read first frame |
|||
|
|||
@property |
|||
def n_frames(self): |
|||
if self._n_frames is None: |
|||
current = self.tell() |
|||
try: |
|||
while True: |
|||
self.seek(self.tell() + 1) |
|||
except EOFError: |
|||
self._n_frames = self.tell() + 1 |
|||
self.seek(current) |
|||
return self._n_frames |
|||
|
|||
@property |
|||
def is_animated(self): |
|||
if self._is_animated is None: |
|||
if self._n_frames is not None: |
|||
self._is_animated = self._n_frames != 1 |
|||
else: |
|||
current = self.tell() |
|||
|
|||
try: |
|||
self.seek(1) |
|||
self._is_animated = True |
|||
except EOFError: |
|||
self._is_animated = False |
|||
|
|||
self.seek(current) |
|||
return self._is_animated |
|||
|
|||
def seek(self, frame): |
|||
if not self._seek_check(frame): |
|||
return |
|||
if frame < self.__frame: |
|||
if frame != 0: |
|||
self.im = None |
|||
self._seek(0) |
|||
|
|||
last_frame = self.__frame |
|||
for f in range(self.__frame + 1, frame + 1): |
|||
try: |
|||
self._seek(f) |
|||
except EOFError as e: |
|||
self.seek(last_frame) |
|||
raise EOFError("no more images in GIF file") from e |
|||
|
|||
def _seek(self, frame): |
|||
|
|||
if frame == 0: |
|||
# rewind |
|||
self.__offset = 0 |
|||
self.dispose = None |
|||
self.dispose_extent = [0, 0, 0, 0] # x0, y0, x1, y1 |
|||
self.__frame = -1 |
|||
self.__fp.seek(self.__rewind) |
|||
self._prev_im = None |
|||
self.disposal_method = 0 |
|||
else: |
|||
# ensure that the previous frame was loaded |
|||
if not self.im: |
|||
self.load() |
|||
|
|||
if frame != self.__frame + 1: |
|||
raise ValueError(f"cannot seek to frame {frame}") |
|||
self.__frame = frame |
|||
|
|||
self.tile = [] |
|||
|
|||
self.fp = self.__fp |
|||
if self.__offset: |
|||
# backup to last frame |
|||
self.fp.seek(self.__offset) |
|||
while self.data(): |
|||
pass |
|||
self.__offset = 0 |
|||
|
|||
if self.dispose: |
|||
self.im.paste(self.dispose, self.dispose_extent) |
|||
|
|||
from copy import copy |
|||
|
|||
self.palette = copy(self.global_palette) |
|||
|
|||
info = {} |
|||
while True: |
|||
|
|||
s = self.fp.read(1) |
|||
if not s or s == b";": |
|||
break |
|||
|
|||
elif s == b"!": |
|||
# |
|||
# extensions |
|||
# |
|||
s = self.fp.read(1) |
|||
block = self.data() |
|||
if s[0] == 249: |
|||
# |
|||
# graphic control extension |
|||
# |
|||
flags = block[0] |
|||
if flags & 1: |
|||
info["transparency"] = block[3] |
|||
info["duration"] = i16(block, 1) * 10 |
|||
|
|||
# disposal method - find the value of bits 4 - 6 |
|||
dispose_bits = 0b00011100 & flags |
|||
dispose_bits = dispose_bits >> 2 |
|||
if dispose_bits: |
|||
# only set the dispose if it is not |
|||
# unspecified. I'm not sure if this is |
|||
# correct, but it seems to prevent the last |
|||
# frame from looking odd for some animations |
|||
self.disposal_method = dispose_bits |
|||
elif s[0] == 254: |
|||
# |
|||
# comment extension |
|||
# |
|||
while block: |
|||
if "comment" in info: |
|||
info["comment"] += block |
|||
else: |
|||
info["comment"] = block |
|||
block = self.data() |
|||
continue |
|||
elif s[0] == 255: |
|||
# |
|||
# application extension |
|||
# |
|||
info["extension"] = block, self.fp.tell() |
|||
if block[:11] == b"NETSCAPE2.0": |
|||
block = self.data() |
|||
if len(block) >= 3 and block[0] == 1: |
|||
info["loop"] = i16(block, 1) |
|||
while self.data(): |
|||
pass |
|||
|
|||
elif s == b",": |
|||
# |
|||
# local image |
|||
# |
|||
s = self.fp.read(9) |
|||
|
|||
# extent |
|||
x0, y0 = i16(s, 0), i16(s, 2) |
|||
x1, y1 = x0 + i16(s, 4), y0 + i16(s, 6) |
|||
if x1 > self.size[0] or y1 > self.size[1]: |
|||
self._size = max(x1, self.size[0]), max(y1, self.size[1]) |
|||
self.dispose_extent = x0, y0, x1, y1 |
|||
flags = s[8] |
|||
|
|||
interlace = (flags & 64) != 0 |
|||
|
|||
if flags & 128: |
|||
bits = (flags & 7) + 1 |
|||
self.palette = ImagePalette.raw("RGB", self.fp.read(3 << bits)) |
|||
|
|||
# image data |
|||
bits = self.fp.read(1)[0] |
|||
self.__offset = self.fp.tell() |
|||
self.tile = [ |
|||
("gif", (x0, y0, x1, y1), self.__offset, (bits, interlace)) |
|||
] |
|||
break |
|||
|
|||
else: |
|||
pass |
|||
# raise OSError, "illegal GIF tag `%x`" % s[0] |
|||
|
|||
try: |
|||
if self.disposal_method < 2: |
|||
# do not dispose or none specified |
|||
self.dispose = None |
|||
elif self.disposal_method == 2: |
|||
# replace with background colour |
|||
Image._decompression_bomb_check(self.size) |
|||
self.dispose = Image.core.fill("P", self.size, self.info["background"]) |
|||
else: |
|||
# replace with previous contents |
|||
if self.im: |
|||
self.dispose = self.im.copy() |
|||
|
|||
# only dispose the extent in this frame |
|||
if self.dispose: |
|||
self.dispose = self._crop(self.dispose, self.dispose_extent) |
|||
except (AttributeError, KeyError): |
|||
pass |
|||
|
|||
if not self.tile: |
|||
# self.__fp = None |
|||
raise EOFError |
|||
|
|||
for k in ["transparency", "duration", "comment", "extension", "loop"]: |
|||
if k in info: |
|||
self.info[k] = info[k] |
|||
elif k in self.info: |
|||
del self.info[k] |
|||
|
|||
self.mode = "L" |
|||
if self.palette: |
|||
self.mode = "P" |
|||
|
|||
def tell(self): |
|||
return self.__frame |
|||
|
|||
def load_end(self): |
|||
ImageFile.ImageFile.load_end(self) |
|||
|
|||
# if the disposal method is 'do not dispose', transparent |
|||
# pixels should show the content of the previous frame |
|||
if self._prev_im and self._prev_disposal_method == 1: |
|||
# we do this by pasting the updated area onto the previous |
|||
# frame which we then use as the current image content |
|||
updated = self._crop(self.im, self.dispose_extent) |
|||
self._prev_im.paste(updated, self.dispose_extent, updated.convert("RGBA")) |
|||
self.im = self._prev_im |
|||
self._prev_im = self.im.copy() |
|||
self._prev_disposal_method = self.disposal_method |
|||
|
|||
def _close__fp(self): |
|||
try: |
|||
if self.__fp != self.fp: |
|||
self.__fp.close() |
|||
except AttributeError: |
|||
pass |
|||
finally: |
|||
self.__fp = None |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Write GIF files |
|||
|
|||
|
|||
RAWMODE = {"1": "L", "L": "L", "P": "P"} |
|||
|
|||
|
|||
def _normalize_mode(im, initial_call=False): |
|||
""" |
|||
Takes an image (or frame), returns an image in a mode that is appropriate |
|||
for saving in a Gif. |
|||
|
|||
It may return the original image, or it may return an image converted to |
|||
palette or 'L' mode. |
|||
|
|||
UNDONE: What is the point of mucking with the initial call palette, for |
|||
an image that shouldn't have a palette, or it would be a mode 'P' and |
|||
get returned in the RAWMODE clause. |
|||
|
|||
:param im: Image object |
|||
:param initial_call: Default false, set to true for a single frame. |
|||
:returns: Image object |
|||
""" |
|||
if im.mode in RAWMODE: |
|||
im.load() |
|||
return im |
|||
if Image.getmodebase(im.mode) == "RGB": |
|||
if initial_call: |
|||
palette_size = 256 |
|||
if im.palette: |
|||
palette_size = len(im.palette.getdata()[1]) // 3 |
|||
return im.convert("P", palette=Image.ADAPTIVE, colors=palette_size) |
|||
else: |
|||
return im.convert("P") |
|||
return im.convert("L") |
|||
|
|||
|
|||
def _normalize_palette(im, palette, info): |
|||
""" |
|||
Normalizes the palette for image. |
|||
- Sets the palette to the incoming palette, if provided. |
|||
- Ensures that there's a palette for L mode images |
|||
- Optimizes the palette if necessary/desired. |
|||
|
|||
:param im: Image object |
|||
:param palette: bytes object containing the source palette, or .... |
|||
:param info: encoderinfo |
|||
:returns: Image object |
|||
""" |
|||
source_palette = None |
|||
if palette: |
|||
# a bytes palette |
|||
if isinstance(palette, (bytes, bytearray, list)): |
|||
source_palette = bytearray(palette[:768]) |
|||
if isinstance(palette, ImagePalette.ImagePalette): |
|||
source_palette = bytearray( |
|||
itertools.chain.from_iterable( |
|||
zip( |
|||
palette.palette[:256], |
|||
palette.palette[256:512], |
|||
palette.palette[512:768], |
|||
) |
|||
) |
|||
) |
|||
|
|||
if im.mode == "P": |
|||
if not source_palette: |
|||
source_palette = im.im.getpalette("RGB")[:768] |
|||
else: # L-mode |
|||
if not source_palette: |
|||
source_palette = bytearray(i // 3 for i in range(768)) |
|||
im.palette = ImagePalette.ImagePalette("RGB", palette=source_palette) |
|||
|
|||
used_palette_colors = _get_optimize(im, info) |
|||
if used_palette_colors is not None: |
|||
return im.remap_palette(used_palette_colors, source_palette) |
|||
|
|||
im.palette.palette = source_palette |
|||
return im |
|||
|
|||
|
|||
def _write_single_frame(im, fp, palette): |
|||
im_out = _normalize_mode(im, True) |
|||
for k, v in im_out.info.items(): |
|||
im.encoderinfo.setdefault(k, v) |
|||
im_out = _normalize_palette(im_out, palette, im.encoderinfo) |
|||
|
|||
for s in _get_global_header(im_out, im.encoderinfo): |
|||
fp.write(s) |
|||
|
|||
# local image header |
|||
flags = 0 |
|||
if get_interlace(im): |
|||
flags = flags | 64 |
|||
_write_local_header(fp, im, (0, 0), flags) |
|||
|
|||
im_out.encoderconfig = (8, get_interlace(im)) |
|||
ImageFile._save(im_out, fp, [("gif", (0, 0) + im.size, 0, RAWMODE[im_out.mode])]) |
|||
|
|||
fp.write(b"\0") # end of image data |
|||
|
|||
|
|||
def _write_multiple_frames(im, fp, palette): |
|||
|
|||
duration = im.encoderinfo.get("duration", im.info.get("duration")) |
|||
disposal = im.encoderinfo.get("disposal", im.info.get("disposal")) |
|||
|
|||
im_frames = [] |
|||
frame_count = 0 |
|||
background_im = None |
|||
for imSequence in itertools.chain([im], im.encoderinfo.get("append_images", [])): |
|||
for im_frame in ImageSequence.Iterator(imSequence): |
|||
# a copy is required here since seek can still mutate the image |
|||
im_frame = _normalize_mode(im_frame.copy()) |
|||
if frame_count == 0: |
|||
for k, v in im_frame.info.items(): |
|||
im.encoderinfo.setdefault(k, v) |
|||
im_frame = _normalize_palette(im_frame, palette, im.encoderinfo) |
|||
|
|||
encoderinfo = im.encoderinfo.copy() |
|||
if isinstance(duration, (list, tuple)): |
|||
encoderinfo["duration"] = duration[frame_count] |
|||
if isinstance(disposal, (list, tuple)): |
|||
encoderinfo["disposal"] = disposal[frame_count] |
|||
frame_count += 1 |
|||
|
|||
if im_frames: |
|||
# delta frame |
|||
previous = im_frames[-1] |
|||
if encoderinfo.get("disposal") == 2: |
|||
if background_im is None: |
|||
background = _get_background( |
|||
im, |
|||
im.encoderinfo.get("background", im.info.get("background")), |
|||
) |
|||
background_im = Image.new("P", im_frame.size, background) |
|||
background_im.putpalette(im_frames[0]["im"].palette) |
|||
base_im = background_im |
|||
else: |
|||
base_im = previous["im"] |
|||
if _get_palette_bytes(im_frame) == _get_palette_bytes(base_im): |
|||
delta = ImageChops.subtract_modulo(im_frame, base_im) |
|||
else: |
|||
delta = ImageChops.subtract_modulo( |
|||
im_frame.convert("RGB"), base_im.convert("RGB") |
|||
) |
|||
bbox = delta.getbbox() |
|||
if not bbox: |
|||
# This frame is identical to the previous frame |
|||
if duration: |
|||
previous["encoderinfo"]["duration"] += encoderinfo["duration"] |
|||
continue |
|||
else: |
|||
bbox = None |
|||
im_frames.append({"im": im_frame, "bbox": bbox, "encoderinfo": encoderinfo}) |
|||
|
|||
if len(im_frames) > 1: |
|||
for frame_data in im_frames: |
|||
im_frame = frame_data["im"] |
|||
if not frame_data["bbox"]: |
|||
# global header |
|||
for s in _get_global_header(im_frame, frame_data["encoderinfo"]): |
|||
fp.write(s) |
|||
offset = (0, 0) |
|||
else: |
|||
# compress difference |
|||
frame_data["encoderinfo"]["include_color_table"] = True |
|||
|
|||
im_frame = im_frame.crop(frame_data["bbox"]) |
|||
offset = frame_data["bbox"][:2] |
|||
_write_frame_data(fp, im_frame, offset, frame_data["encoderinfo"]) |
|||
return True |
|||
elif "duration" in im.encoderinfo and isinstance( |
|||
im.encoderinfo["duration"], (list, tuple) |
|||
): |
|||
# Since multiple frames will not be written, add together the frame durations |
|||
im.encoderinfo["duration"] = sum(im.encoderinfo["duration"]) |
|||
|
|||
|
|||
def _save_all(im, fp, filename): |
|||
_save(im, fp, filename, save_all=True) |
|||
|
|||
|
|||
def _save(im, fp, filename, save_all=False): |
|||
# header |
|||
if "palette" in im.encoderinfo or "palette" in im.info: |
|||
palette = im.encoderinfo.get("palette", im.info.get("palette")) |
|||
else: |
|||
palette = None |
|||
im.encoderinfo["optimize"] = im.encoderinfo.get("optimize", True) |
|||
|
|||
if not save_all or not _write_multiple_frames(im, fp, palette): |
|||
_write_single_frame(im, fp, palette) |
|||
|
|||
fp.write(b";") # end of file |
|||
|
|||
if hasattr(fp, "flush"): |
|||
fp.flush() |
|||
|
|||
|
|||
def get_interlace(im): |
|||
interlace = im.encoderinfo.get("interlace", 1) |
|||
|
|||
# workaround for @PIL153 |
|||
if min(im.size) < 16: |
|||
interlace = 0 |
|||
|
|||
return interlace |
|||
|
|||
|
|||
def _write_local_header(fp, im, offset, flags): |
|||
transparent_color_exists = False |
|||
try: |
|||
transparency = im.encoderinfo["transparency"] |
|||
except KeyError: |
|||
pass |
|||
else: |
|||
transparency = int(transparency) |
|||
# optimize the block away if transparent color is not used |
|||
transparent_color_exists = True |
|||
|
|||
used_palette_colors = _get_optimize(im, im.encoderinfo) |
|||
if used_palette_colors is not None: |
|||
# adjust the transparency index after optimize |
|||
try: |
|||
transparency = used_palette_colors.index(transparency) |
|||
except ValueError: |
|||
transparent_color_exists = False |
|||
|
|||
if "duration" in im.encoderinfo: |
|||
duration = int(im.encoderinfo["duration"] / 10) |
|||
else: |
|||
duration = 0 |
|||
|
|||
disposal = int(im.encoderinfo.get("disposal", 0)) |
|||
|
|||
if transparent_color_exists or duration != 0 or disposal: |
|||
packed_flag = 1 if transparent_color_exists else 0 |
|||
packed_flag |= disposal << 2 |
|||
if not transparent_color_exists: |
|||
transparency = 0 |
|||
|
|||
fp.write( |
|||
b"!" |
|||
+ o8(249) # extension intro |
|||
+ o8(4) # length |
|||
+ o8(packed_flag) # packed fields |
|||
+ o16(duration) # duration |
|||
+ o8(transparency) # transparency index |
|||
+ o8(0) |
|||
) |
|||
|
|||
if "comment" in im.encoderinfo and 1 <= len(im.encoderinfo["comment"]): |
|||
fp.write(b"!" + o8(254)) # extension intro |
|||
comment = im.encoderinfo["comment"] |
|||
if isinstance(comment, str): |
|||
comment = comment.encode() |
|||
for i in range(0, len(comment), 255): |
|||
subblock = comment[i : i + 255] |
|||
fp.write(o8(len(subblock)) + subblock) |
|||
fp.write(o8(0)) |
|||
if "loop" in im.encoderinfo: |
|||
number_of_loops = im.encoderinfo["loop"] |
|||
fp.write( |
|||
b"!" |
|||
+ o8(255) # extension intro |
|||
+ o8(11) |
|||
+ b"NETSCAPE2.0" |
|||
+ o8(3) |
|||
+ o8(1) |
|||
+ o16(number_of_loops) # number of loops |
|||
+ o8(0) |
|||
) |
|||
include_color_table = im.encoderinfo.get("include_color_table") |
|||
if include_color_table: |
|||
palette_bytes = _get_palette_bytes(im) |
|||
color_table_size = _get_color_table_size(palette_bytes) |
|||
if color_table_size: |
|||
flags = flags | 128 # local color table flag |
|||
flags = flags | color_table_size |
|||
|
|||
fp.write( |
|||
b"," |
|||
+ o16(offset[0]) # offset |
|||
+ o16(offset[1]) |
|||
+ o16(im.size[0]) # size |
|||
+ o16(im.size[1]) |
|||
+ o8(flags) # flags |
|||
) |
|||
if include_color_table and color_table_size: |
|||
fp.write(_get_header_palette(palette_bytes)) |
|||
fp.write(o8(8)) # bits |
|||
|
|||
|
|||
def _save_netpbm(im, fp, filename): |
|||
|
|||
# Unused by default. |
|||
# To use, uncomment the register_save call at the end of the file. |
|||
# |
|||
# If you need real GIF compression and/or RGB quantization, you |
|||
# can use the external NETPBM/PBMPLUS utilities. See comments |
|||
# below for information on how to enable this. |
|||
tempfile = im._dump() |
|||
|
|||
try: |
|||
with open(filename, "wb") as f: |
|||
if im.mode != "RGB": |
|||
subprocess.check_call( |
|||
["ppmtogif", tempfile], stdout=f, stderr=subprocess.DEVNULL |
|||
) |
|||
else: |
|||
# Pipe ppmquant output into ppmtogif |
|||
# "ppmquant 256 %s | ppmtogif > %s" % (tempfile, filename) |
|||
quant_cmd = ["ppmquant", "256", tempfile] |
|||
togif_cmd = ["ppmtogif"] |
|||
quant_proc = subprocess.Popen( |
|||
quant_cmd, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL |
|||
) |
|||
togif_proc = subprocess.Popen( |
|||
togif_cmd, |
|||
stdin=quant_proc.stdout, |
|||
stdout=f, |
|||
stderr=subprocess.DEVNULL, |
|||
) |
|||
|
|||
# Allow ppmquant to receive SIGPIPE if ppmtogif exits |
|||
quant_proc.stdout.close() |
|||
|
|||
retcode = quant_proc.wait() |
|||
if retcode: |
|||
raise subprocess.CalledProcessError(retcode, quant_cmd) |
|||
|
|||
retcode = togif_proc.wait() |
|||
if retcode: |
|||
raise subprocess.CalledProcessError(retcode, togif_cmd) |
|||
finally: |
|||
try: |
|||
os.unlink(tempfile) |
|||
except OSError: |
|||
pass |
|||
|
|||
|
|||
# Force optimization so that we can test performance against |
|||
# cases where it took lots of memory and time previously. |
|||
_FORCE_OPTIMIZE = False |
|||
|
|||
|
|||
def _get_optimize(im, info): |
|||
""" |
|||
Palette optimization is a potentially expensive operation. |
|||
|
|||
This function determines if the palette should be optimized using |
|||
some heuristics, then returns the list of palette entries in use. |
|||
|
|||
:param im: Image object |
|||
:param info: encoderinfo |
|||
:returns: list of indexes of palette entries in use, or None |
|||
""" |
|||
if im.mode in ("P", "L") and info and info.get("optimize", 0): |
|||
# Potentially expensive operation. |
|||
|
|||
# The palette saves 3 bytes per color not used, but palette |
|||
# lengths are restricted to 3*(2**N) bytes. Max saving would |
|||
# be 768 -> 6 bytes if we went all the way down to 2 colors. |
|||
# * If we're over 128 colors, we can't save any space. |
|||
# * If there aren't any holes, it's not worth collapsing. |
|||
# * If we have a 'large' image, the palette is in the noise. |
|||
|
|||
# create the new palette if not every color is used |
|||
optimise = _FORCE_OPTIMIZE or im.mode == "L" |
|||
if optimise or im.width * im.height < 512 * 512: |
|||
# check which colors are used |
|||
used_palette_colors = [] |
|||
for i, count in enumerate(im.histogram()): |
|||
if count: |
|||
used_palette_colors.append(i) |
|||
|
|||
if optimise or ( |
|||
len(used_palette_colors) <= 128 |
|||
and max(used_palette_colors) > len(used_palette_colors) |
|||
): |
|||
return used_palette_colors |
|||
|
|||
|
|||
def _get_color_table_size(palette_bytes): |
|||
# calculate the palette size for the header |
|||
if not palette_bytes: |
|||
return 0 |
|||
elif len(palette_bytes) < 9: |
|||
return 1 |
|||
else: |
|||
return math.ceil(math.log(len(palette_bytes) // 3, 2)) - 1 |
|||
|
|||
|
|||
def _get_header_palette(palette_bytes): |
|||
""" |
|||
Returns the palette, null padded to the next power of 2 (*3) bytes |
|||
suitable for direct inclusion in the GIF header |
|||
|
|||
:param palette_bytes: Unpadded palette bytes, in RGBRGB form |
|||
:returns: Null padded palette |
|||
""" |
|||
color_table_size = _get_color_table_size(palette_bytes) |
|||
|
|||
# add the missing amount of bytes |
|||
# the palette has to be 2<<n in size |
|||
actual_target_size_diff = (2 << color_table_size) - len(palette_bytes) // 3 |
|||
if actual_target_size_diff > 0: |
|||
palette_bytes += o8(0) * 3 * actual_target_size_diff |
|||
return palette_bytes |
|||
|
|||
|
|||
def _get_palette_bytes(im): |
|||
""" |
|||
Gets the palette for inclusion in the gif header |
|||
|
|||
:param im: Image object |
|||
:returns: Bytes, len<=768 suitable for inclusion in gif header |
|||
""" |
|||
return im.palette.palette |
|||
|
|||
|
|||
def _get_background(im, infoBackground): |
|||
background = 0 |
|||
if infoBackground: |
|||
background = infoBackground |
|||
if isinstance(background, tuple): |
|||
# WebPImagePlugin stores an RGBA value in info["background"] |
|||
# So it must be converted to the same format as GifImagePlugin's |
|||
# info["background"] - a global color table index |
|||
background = im.palette.getcolor(background) |
|||
return background |
|||
|
|||
|
|||
def _get_global_header(im, info): |
|||
"""Return a list of strings representing a GIF header""" |
|||
|
|||
# Header Block |
|||
# http://www.matthewflickinger.com/lab/whatsinagif/bits_and_bytes.asp |
|||
|
|||
version = b"87a" |
|||
for extensionKey in ["transparency", "duration", "loop", "comment"]: |
|||
if info and extensionKey in info: |
|||
if (extensionKey == "duration" and info[extensionKey] == 0) or ( |
|||
extensionKey == "comment" and not (1 <= len(info[extensionKey]) <= 255) |
|||
): |
|||
continue |
|||
version = b"89a" |
|||
break |
|||
else: |
|||
if im.info.get("version") == b"89a": |
|||
version = b"89a" |
|||
|
|||
background = _get_background(im, info.get("background")) |
|||
|
|||
palette_bytes = _get_palette_bytes(im) |
|||
color_table_size = _get_color_table_size(palette_bytes) |
|||
|
|||
return [ |
|||
b"GIF" # signature |
|||
+ version # version |
|||
+ o16(im.size[0]) # canvas width |
|||
+ o16(im.size[1]), # canvas height |
|||
# Logical Screen Descriptor |
|||
# size of global color table + global color table flag |
|||
o8(color_table_size + 128), # packed fields |
|||
# background + reserved/aspect |
|||
o8(background) + o8(0), |
|||
# Global Color Table |
|||
_get_header_palette(palette_bytes), |
|||
] |
|||
|
|||
|
|||
def _write_frame_data(fp, im_frame, offset, params): |
|||
try: |
|||
im_frame.encoderinfo = params |
|||
|
|||
# local image header |
|||
_write_local_header(fp, im_frame, offset, 0) |
|||
|
|||
ImageFile._save( |
|||
im_frame, fp, [("gif", (0, 0) + im_frame.size, 0, RAWMODE[im_frame.mode])] |
|||
) |
|||
|
|||
fp.write(b"\0") # end of image data |
|||
finally: |
|||
del im_frame.encoderinfo |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Legacy GIF utilities |
|||
|
|||
|
|||
def getheader(im, palette=None, info=None): |
|||
""" |
|||
Legacy Method to get Gif data from image. |
|||
|
|||
Warning:: May modify image data. |
|||
|
|||
:param im: Image object |
|||
:param palette: bytes object containing the source palette, or .... |
|||
:param info: encoderinfo |
|||
:returns: tuple of(list of header items, optimized palette) |
|||
|
|||
""" |
|||
used_palette_colors = _get_optimize(im, info) |
|||
|
|||
if info is None: |
|||
info = {} |
|||
|
|||
if "background" not in info and "background" in im.info: |
|||
info["background"] = im.info["background"] |
|||
|
|||
im_mod = _normalize_palette(im, palette, info) |
|||
im.palette = im_mod.palette |
|||
im.im = im_mod.im |
|||
header = _get_global_header(im, info) |
|||
|
|||
return header, used_palette_colors |
|||
|
|||
|
|||
# To specify duration, add the time in milliseconds to getdata(), |
|||
# e.g. getdata(im_frame, duration=1000) |
|||
def getdata(im, offset=(0, 0), **params): |
|||
""" |
|||
Legacy Method |
|||
|
|||
Return a list of strings representing this image. |
|||
The first string is a local image header, the rest contains |
|||
encoded image data. |
|||
|
|||
:param im: Image object |
|||
:param offset: Tuple of (x, y) pixels. Defaults to (0,0) |
|||
:param \\**params: E.g. duration or other encoder info parameters |
|||
:returns: List of Bytes containing gif encoded frame data |
|||
|
|||
""" |
|||
|
|||
class Collector: |
|||
data = [] |
|||
|
|||
def write(self, data): |
|||
self.data.append(data) |
|||
|
|||
im.load() # make sure raster data is available |
|||
|
|||
fp = Collector() |
|||
|
|||
_write_frame_data(fp, im, offset, params) |
|||
|
|||
return fp.data |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Registry |
|||
|
|||
Image.register_open(GifImageFile.format, GifImageFile, _accept) |
|||
Image.register_save(GifImageFile.format, _save) |
|||
Image.register_save_all(GifImageFile.format, _save_all) |
|||
Image.register_extension(GifImageFile.format, ".gif") |
|||
Image.register_mime(GifImageFile.format, "image/gif") |
|||
|
|||
# |
|||
# Uncomment the following line if you wish to use NETPBM/PBMPLUS |
|||
# instead of the built-in "uncompressed" GIF encoder |
|||
|
|||
# Image.register_save(GifImageFile.format, _save_netpbm) |
@ -0,0 +1,140 @@ |
|||
# |
|||
# Python Imaging Library |
|||
# $Id$ |
|||
# |
|||
# stuff to read (and render) GIMP gradient files |
|||
# |
|||
# History: |
|||
# 97-08-23 fl Created |
|||
# |
|||
# Copyright (c) Secret Labs AB 1997. |
|||
# Copyright (c) Fredrik Lundh 1997. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
""" |
|||
Stuff to translate curve segments to palette values (derived from |
|||
the corresponding code in GIMP, written by Federico Mena Quintero. |
|||
See the GIMP distribution for more information.) |
|||
""" |
|||
|
|||
|
|||
from math import log, pi, sin, sqrt |
|||
|
|||
from ._binary import o8 |
|||
|
|||
EPSILON = 1e-10 |
|||
"""""" # Enable auto-doc for data member |
|||
|
|||
|
|||
def linear(middle, pos): |
|||
if pos <= middle: |
|||
if middle < EPSILON: |
|||
return 0.0 |
|||
else: |
|||
return 0.5 * pos / middle |
|||
else: |
|||
pos = pos - middle |
|||
middle = 1.0 - middle |
|||
if middle < EPSILON: |
|||
return 1.0 |
|||
else: |
|||
return 0.5 + 0.5 * pos / middle |
|||
|
|||
|
|||
def curved(middle, pos): |
|||
return pos ** (log(0.5) / log(max(middle, EPSILON))) |
|||
|
|||
|
|||
def sine(middle, pos): |
|||
return (sin((-pi / 2.0) + pi * linear(middle, pos)) + 1.0) / 2.0 |
|||
|
|||
|
|||
def sphere_increasing(middle, pos): |
|||
return sqrt(1.0 - (linear(middle, pos) - 1.0) ** 2) |
|||
|
|||
|
|||
def sphere_decreasing(middle, pos): |
|||
return 1.0 - sqrt(1.0 - linear(middle, pos) ** 2) |
|||
|
|||
|
|||
SEGMENTS = [linear, curved, sine, sphere_increasing, sphere_decreasing] |
|||
"""""" # Enable auto-doc for data member |
|||
|
|||
|
|||
class GradientFile: |
|||
|
|||
gradient = None |
|||
|
|||
def getpalette(self, entries=256): |
|||
|
|||
palette = [] |
|||
|
|||
ix = 0 |
|||
x0, x1, xm, rgb0, rgb1, segment = self.gradient[ix] |
|||
|
|||
for i in range(entries): |
|||
|
|||
x = i / (entries - 1) |
|||
|
|||
while x1 < x: |
|||
ix += 1 |
|||
x0, x1, xm, rgb0, rgb1, segment = self.gradient[ix] |
|||
|
|||
w = x1 - x0 |
|||
|
|||
if w < EPSILON: |
|||
scale = segment(0.5, 0.5) |
|||
else: |
|||
scale = segment((xm - x0) / w, (x - x0) / w) |
|||
|
|||
# expand to RGBA |
|||
r = o8(int(255 * ((rgb1[0] - rgb0[0]) * scale + rgb0[0]) + 0.5)) |
|||
g = o8(int(255 * ((rgb1[1] - rgb0[1]) * scale + rgb0[1]) + 0.5)) |
|||
b = o8(int(255 * ((rgb1[2] - rgb0[2]) * scale + rgb0[2]) + 0.5)) |
|||
a = o8(int(255 * ((rgb1[3] - rgb0[3]) * scale + rgb0[3]) + 0.5)) |
|||
|
|||
# add to palette |
|||
palette.append(r + g + b + a) |
|||
|
|||
return b"".join(palette), "RGBA" |
|||
|
|||
|
|||
class GimpGradientFile(GradientFile): |
|||
"""File handler for GIMP's gradient format.""" |
|||
|
|||
def __init__(self, fp): |
|||
|
|||
if fp.readline()[:13] != b"GIMP Gradient": |
|||
raise SyntaxError("not a GIMP gradient file") |
|||
|
|||
line = fp.readline() |
|||
|
|||
# GIMP 1.2 gradient files don't contain a name, but GIMP 1.3 files do |
|||
if line.startswith(b"Name: "): |
|||
line = fp.readline().strip() |
|||
|
|||
count = int(line) |
|||
|
|||
gradient = [] |
|||
|
|||
for i in range(count): |
|||
|
|||
s = fp.readline().split() |
|||
w = [float(x) for x in s[:11]] |
|||
|
|||
x0, x1 = w[0], w[2] |
|||
xm = w[1] |
|||
rgb0 = w[3:7] |
|||
rgb1 = w[7:11] |
|||
|
|||
segment = SEGMENTS[int(s[11])] |
|||
cspace = int(s[12]) |
|||
|
|||
if cspace != 0: |
|||
raise OSError("cannot handle HSV colour space") |
|||
|
|||
gradient.append((x0, x1, xm, rgb0, rgb1, segment)) |
|||
|
|||
self.gradient = gradient |
@ -0,0 +1,56 @@ |
|||
# |
|||
# Python Imaging Library |
|||
# $Id$ |
|||
# |
|||
# stuff to read GIMP palette files |
|||
# |
|||
# History: |
|||
# 1997-08-23 fl Created |
|||
# 2004-09-07 fl Support GIMP 2.0 palette files. |
|||
# |
|||
# Copyright (c) Secret Labs AB 1997-2004. All rights reserved. |
|||
# Copyright (c) Fredrik Lundh 1997-2004. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
import re |
|||
|
|||
from ._binary import o8 |
|||
|
|||
|
|||
class GimpPaletteFile: |
|||
"""File handler for GIMP's palette format.""" |
|||
|
|||
rawmode = "RGB" |
|||
|
|||
def __init__(self, fp): |
|||
|
|||
self.palette = [o8(i) * 3 for i in range(256)] |
|||
|
|||
if fp.readline()[:12] != b"GIMP Palette": |
|||
raise SyntaxError("not a GIMP palette file") |
|||
|
|||
for i in range(256): |
|||
|
|||
s = fp.readline() |
|||
if not s: |
|||
break |
|||
|
|||
# skip fields and comment lines |
|||
if re.match(br"\w+:|#", s): |
|||
continue |
|||
if len(s) > 100: |
|||
raise SyntaxError("bad palette file") |
|||
|
|||
v = tuple(map(int, s.split()[:3])) |
|||
if len(v) != 3: |
|||
raise ValueError("bad palette entry") |
|||
|
|||
self.palette[i] = o8(v[0]) + o8(v[1]) + o8(v[2]) |
|||
|
|||
self.palette = b"".join(self.palette) |
|||
|
|||
def getpalette(self): |
|||
|
|||
return self.palette, self.rawmode |
@ -0,0 +1,73 @@ |
|||
# |
|||
# The Python Imaging Library |
|||
# $Id$ |
|||
# |
|||
# GRIB stub adapter |
|||
# |
|||
# Copyright (c) 1996-2003 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
from . import Image, ImageFile |
|||
|
|||
_handler = None |
|||
|
|||
|
|||
def register_handler(handler): |
|||
""" |
|||
Install application-specific GRIB image handler. |
|||
|
|||
:param handler: Handler object. |
|||
""" |
|||
global _handler |
|||
_handler = handler |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Image adapter |
|||
|
|||
|
|||
def _accept(prefix): |
|||
return prefix[0:4] == b"GRIB" and prefix[7] == 1 |
|||
|
|||
|
|||
class GribStubImageFile(ImageFile.StubImageFile): |
|||
|
|||
format = "GRIB" |
|||
format_description = "GRIB" |
|||
|
|||
def _open(self): |
|||
|
|||
offset = self.fp.tell() |
|||
|
|||
if not _accept(self.fp.read(8)): |
|||
raise SyntaxError("Not a GRIB file") |
|||
|
|||
self.fp.seek(offset) |
|||
|
|||
# make something up |
|||
self.mode = "F" |
|||
self._size = 1, 1 |
|||
|
|||
loader = self._load() |
|||
if loader: |
|||
loader.open(self) |
|||
|
|||
def _load(self): |
|||
return _handler |
|||
|
|||
|
|||
def _save(im, fp, filename): |
|||
if _handler is None or not hasattr("_handler", "save"): |
|||
raise OSError("GRIB save handler not installed") |
|||
_handler.save(im, fp, filename) |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Registry |
|||
|
|||
Image.register_open(GribStubImageFile.format, GribStubImageFile, _accept) |
|||
Image.register_save(GribStubImageFile.format, _save) |
|||
|
|||
Image.register_extension(GribStubImageFile.format, ".grib") |
@ -0,0 +1,73 @@ |
|||
# |
|||
# The Python Imaging Library |
|||
# $Id$ |
|||
# |
|||
# HDF5 stub adapter |
|||
# |
|||
# Copyright (c) 2000-2003 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
from . import Image, ImageFile |
|||
|
|||
_handler = None |
|||
|
|||
|
|||
def register_handler(handler): |
|||
""" |
|||
Install application-specific HDF5 image handler. |
|||
|
|||
:param handler: Handler object. |
|||
""" |
|||
global _handler |
|||
_handler = handler |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Image adapter |
|||
|
|||
|
|||
def _accept(prefix): |
|||
return prefix[:8] == b"\x89HDF\r\n\x1a\n" |
|||
|
|||
|
|||
class HDF5StubImageFile(ImageFile.StubImageFile): |
|||
|
|||
format = "HDF5" |
|||
format_description = "HDF5" |
|||
|
|||
def _open(self): |
|||
|
|||
offset = self.fp.tell() |
|||
|
|||
if not _accept(self.fp.read(8)): |
|||
raise SyntaxError("Not an HDF file") |
|||
|
|||
self.fp.seek(offset) |
|||
|
|||
# make something up |
|||
self.mode = "F" |
|||
self._size = 1, 1 |
|||
|
|||
loader = self._load() |
|||
if loader: |
|||
loader.open(self) |
|||
|
|||
def _load(self): |
|||
return _handler |
|||
|
|||
|
|||
def _save(im, fp, filename): |
|||
if _handler is None or not hasattr("_handler", "save"): |
|||
raise OSError("HDF5 save handler not installed") |
|||
_handler.save(im, fp, filename) |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Registry |
|||
|
|||
Image.register_open(HDF5StubImageFile.format, HDF5StubImageFile, _accept) |
|||
Image.register_save(HDF5StubImageFile.format, _save) |
|||
|
|||
Image.register_extensions(HDF5StubImageFile.format, [".h5", ".hdf"]) |
@ -0,0 +1,383 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# macOS icns file decoder, based on icns.py by Bob Ippolito. |
|||
# |
|||
# history: |
|||
# 2004-10-09 fl Turned into a PIL plugin; removed 2.3 dependencies. |
|||
# |
|||
# Copyright (c) 2004 by Bob Ippolito. |
|||
# Copyright (c) 2004 by Secret Labs. |
|||
# Copyright (c) 2004 by Fredrik Lundh. |
|||
# Copyright (c) 2014 by Alastair Houghton. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
import io |
|||
import os |
|||
import shutil |
|||
import struct |
|||
import subprocess |
|||
import sys |
|||
import tempfile |
|||
|
|||
from PIL import Image, ImageFile, PngImagePlugin, features |
|||
|
|||
enable_jpeg2k = features.check_codec("jpg_2000") |
|||
if enable_jpeg2k: |
|||
from PIL import Jpeg2KImagePlugin |
|||
|
|||
HEADERSIZE = 8 |
|||
|
|||
|
|||
def nextheader(fobj): |
|||
return struct.unpack(">4sI", fobj.read(HEADERSIZE)) |
|||
|
|||
|
|||
def read_32t(fobj, start_length, size): |
|||
# The 128x128 icon seems to have an extra header for some reason. |
|||
(start, length) = start_length |
|||
fobj.seek(start) |
|||
sig = fobj.read(4) |
|||
if sig != b"\x00\x00\x00\x00": |
|||
raise SyntaxError("Unknown signature, expecting 0x00000000") |
|||
return read_32(fobj, (start + 4, length - 4), size) |
|||
|
|||
|
|||
def read_32(fobj, start_length, size): |
|||
""" |
|||
Read a 32bit RGB icon resource. Seems to be either uncompressed or |
|||
an RLE packbits-like scheme. |
|||
""" |
|||
(start, length) = start_length |
|||
fobj.seek(start) |
|||
pixel_size = (size[0] * size[2], size[1] * size[2]) |
|||
sizesq = pixel_size[0] * pixel_size[1] |
|||
if length == sizesq * 3: |
|||
# uncompressed ("RGBRGBGB") |
|||
indata = fobj.read(length) |
|||
im = Image.frombuffer("RGB", pixel_size, indata, "raw", "RGB", 0, 1) |
|||
else: |
|||
# decode image |
|||
im = Image.new("RGB", pixel_size, None) |
|||
for band_ix in range(3): |
|||
data = [] |
|||
bytesleft = sizesq |
|||
while bytesleft > 0: |
|||
byte = fobj.read(1) |
|||
if not byte: |
|||
break |
|||
byte = byte[0] |
|||
if byte & 0x80: |
|||
blocksize = byte - 125 |
|||
byte = fobj.read(1) |
|||
for i in range(blocksize): |
|||
data.append(byte) |
|||
else: |
|||
blocksize = byte + 1 |
|||
data.append(fobj.read(blocksize)) |
|||
bytesleft -= blocksize |
|||
if bytesleft <= 0: |
|||
break |
|||
if bytesleft != 0: |
|||
raise SyntaxError(f"Error reading channel [{repr(bytesleft)} left]") |
|||
band = Image.frombuffer("L", pixel_size, b"".join(data), "raw", "L", 0, 1) |
|||
im.im.putband(band.im, band_ix) |
|||
return {"RGB": im} |
|||
|
|||
|
|||
def read_mk(fobj, start_length, size): |
|||
# Alpha masks seem to be uncompressed |
|||
start = start_length[0] |
|||
fobj.seek(start) |
|||
pixel_size = (size[0] * size[2], size[1] * size[2]) |
|||
sizesq = pixel_size[0] * pixel_size[1] |
|||
band = Image.frombuffer("L", pixel_size, fobj.read(sizesq), "raw", "L", 0, 1) |
|||
return {"A": band} |
|||
|
|||
|
|||
def read_png_or_jpeg2000(fobj, start_length, size): |
|||
(start, length) = start_length |
|||
fobj.seek(start) |
|||
sig = fobj.read(12) |
|||
if sig[:8] == b"\x89PNG\x0d\x0a\x1a\x0a": |
|||
fobj.seek(start) |
|||
im = PngImagePlugin.PngImageFile(fobj) |
|||
return {"RGBA": im} |
|||
elif ( |
|||
sig[:4] == b"\xff\x4f\xff\x51" |
|||
or sig[:4] == b"\x0d\x0a\x87\x0a" |
|||
or sig == b"\x00\x00\x00\x0cjP \x0d\x0a\x87\x0a" |
|||
): |
|||
if not enable_jpeg2k: |
|||
raise ValueError( |
|||
"Unsupported icon subimage format (rebuild PIL " |
|||
"with JPEG 2000 support to fix this)" |
|||
) |
|||
# j2k, jpc or j2c |
|||
fobj.seek(start) |
|||
jp2kstream = fobj.read(length) |
|||
f = io.BytesIO(jp2kstream) |
|||
im = Jpeg2KImagePlugin.Jpeg2KImageFile(f) |
|||
if im.mode != "RGBA": |
|||
im = im.convert("RGBA") |
|||
return {"RGBA": im} |
|||
else: |
|||
raise ValueError("Unsupported icon subimage format") |
|||
|
|||
|
|||
class IcnsFile: |
|||
|
|||
SIZES = { |
|||
(512, 512, 2): [(b"ic10", read_png_or_jpeg2000)], |
|||
(512, 512, 1): [(b"ic09", read_png_or_jpeg2000)], |
|||
(256, 256, 2): [(b"ic14", read_png_or_jpeg2000)], |
|||
(256, 256, 1): [(b"ic08", read_png_or_jpeg2000)], |
|||
(128, 128, 2): [(b"ic13", read_png_or_jpeg2000)], |
|||
(128, 128, 1): [ |
|||
(b"ic07", read_png_or_jpeg2000), |
|||
(b"it32", read_32t), |
|||
(b"t8mk", read_mk), |
|||
], |
|||
(64, 64, 1): [(b"icp6", read_png_or_jpeg2000)], |
|||
(32, 32, 2): [(b"ic12", read_png_or_jpeg2000)], |
|||
(48, 48, 1): [(b"ih32", read_32), (b"h8mk", read_mk)], |
|||
(32, 32, 1): [ |
|||
(b"icp5", read_png_or_jpeg2000), |
|||
(b"il32", read_32), |
|||
(b"l8mk", read_mk), |
|||
], |
|||
(16, 16, 2): [(b"ic11", read_png_or_jpeg2000)], |
|||
(16, 16, 1): [ |
|||
(b"icp4", read_png_or_jpeg2000), |
|||
(b"is32", read_32), |
|||
(b"s8mk", read_mk), |
|||
], |
|||
} |
|||
|
|||
def __init__(self, fobj): |
|||
""" |
|||
fobj is a file-like object as an icns resource |
|||
""" |
|||
# signature : (start, length) |
|||
self.dct = dct = {} |
|||
self.fobj = fobj |
|||
sig, filesize = nextheader(fobj) |
|||
if sig != b"icns": |
|||
raise SyntaxError("not an icns file") |
|||
i = HEADERSIZE |
|||
while i < filesize: |
|||
sig, blocksize = nextheader(fobj) |
|||
if blocksize <= 0: |
|||
raise SyntaxError("invalid block header") |
|||
i += HEADERSIZE |
|||
blocksize -= HEADERSIZE |
|||
dct[sig] = (i, blocksize) |
|||
fobj.seek(blocksize, io.SEEK_CUR) |
|||
i += blocksize |
|||
|
|||
def itersizes(self): |
|||
sizes = [] |
|||
for size, fmts in self.SIZES.items(): |
|||
for (fmt, reader) in fmts: |
|||
if fmt in self.dct: |
|||
sizes.append(size) |
|||
break |
|||
return sizes |
|||
|
|||
def bestsize(self): |
|||
sizes = self.itersizes() |
|||
if not sizes: |
|||
raise SyntaxError("No 32bit icon resources found") |
|||
return max(sizes) |
|||
|
|||
def dataforsize(self, size): |
|||
""" |
|||
Get an icon resource as {channel: array}. Note that |
|||
the arrays are bottom-up like windows bitmaps and will likely |
|||
need to be flipped or transposed in some way. |
|||
""" |
|||
dct = {} |
|||
for code, reader in self.SIZES[size]: |
|||
desc = self.dct.get(code) |
|||
if desc is not None: |
|||
dct.update(reader(self.fobj, desc, size)) |
|||
return dct |
|||
|
|||
def getimage(self, size=None): |
|||
if size is None: |
|||
size = self.bestsize() |
|||
if len(size) == 2: |
|||
size = (size[0], size[1], 1) |
|||
channels = self.dataforsize(size) |
|||
|
|||
im = channels.get("RGBA", None) |
|||
if im: |
|||
return im |
|||
|
|||
im = channels.get("RGB").copy() |
|||
try: |
|||
im.putalpha(channels["A"]) |
|||
except KeyError: |
|||
pass |
|||
return im |
|||
|
|||
|
|||
## |
|||
# Image plugin for Mac OS icons. |
|||
|
|||
|
|||
class IcnsImageFile(ImageFile.ImageFile): |
|||
""" |
|||
PIL image support for Mac OS .icns files. |
|||
Chooses the best resolution, but will possibly load |
|||
a different size image if you mutate the size attribute |
|||
before calling 'load'. |
|||
|
|||
The info dictionary has a key 'sizes' that is a list |
|||
of sizes that the icns file has. |
|||
""" |
|||
|
|||
format = "ICNS" |
|||
format_description = "Mac OS icns resource" |
|||
|
|||
def _open(self): |
|||
self.icns = IcnsFile(self.fp) |
|||
self.mode = "RGBA" |
|||
self.info["sizes"] = self.icns.itersizes() |
|||
self.best_size = self.icns.bestsize() |
|||
self.size = ( |
|||
self.best_size[0] * self.best_size[2], |
|||
self.best_size[1] * self.best_size[2], |
|||
) |
|||
|
|||
@property |
|||
def size(self): |
|||
return self._size |
|||
|
|||
@size.setter |
|||
def size(self, value): |
|||
info_size = value |
|||
if info_size not in self.info["sizes"] and len(info_size) == 2: |
|||
info_size = (info_size[0], info_size[1], 1) |
|||
if ( |
|||
info_size not in self.info["sizes"] |
|||
and len(info_size) == 3 |
|||
and info_size[2] == 1 |
|||
): |
|||
simple_sizes = [ |
|||
(size[0] * size[2], size[1] * size[2]) for size in self.info["sizes"] |
|||
] |
|||
if value in simple_sizes: |
|||
info_size = self.info["sizes"][simple_sizes.index(value)] |
|||
if info_size not in self.info["sizes"]: |
|||
raise ValueError("This is not one of the allowed sizes of this image") |
|||
self._size = value |
|||
|
|||
def load(self): |
|||
if len(self.size) == 3: |
|||
self.best_size = self.size |
|||
self.size = ( |
|||
self.best_size[0] * self.best_size[2], |
|||
self.best_size[1] * self.best_size[2], |
|||
) |
|||
|
|||
Image.Image.load(self) |
|||
if self.im and self.im.size == self.size: |
|||
# Already loaded |
|||
return |
|||
self.load_prepare() |
|||
# This is likely NOT the best way to do it, but whatever. |
|||
im = self.icns.getimage(self.best_size) |
|||
|
|||
# If this is a PNG or JPEG 2000, it won't be loaded yet |
|||
im.load() |
|||
|
|||
self.im = im.im |
|||
self.mode = im.mode |
|||
self.size = im.size |
|||
self.load_end() |
|||
|
|||
|
|||
def _save(im, fp, filename): |
|||
""" |
|||
Saves the image as a series of PNG files, |
|||
that are then converted to a .icns file |
|||
using the macOS command line utility 'iconutil'. |
|||
|
|||
macOS only. |
|||
""" |
|||
if hasattr(fp, "flush"): |
|||
fp.flush() |
|||
|
|||
# create the temporary set of pngs |
|||
with tempfile.TemporaryDirectory(".iconset") as iconset: |
|||
provided_images = { |
|||
im.width: im for im in im.encoderinfo.get("append_images", []) |
|||
} |
|||
last_w = None |
|||
second_path = None |
|||
for w in [16, 32, 128, 256, 512]: |
|||
prefix = f"icon_{w}x{w}" |
|||
|
|||
first_path = os.path.join(iconset, prefix + ".png") |
|||
if last_w == w: |
|||
shutil.copyfile(second_path, first_path) |
|||
else: |
|||
im_w = provided_images.get(w, im.resize((w, w), Image.LANCZOS)) |
|||
im_w.save(first_path) |
|||
|
|||
second_path = os.path.join(iconset, prefix + "@2x.png") |
|||
im_w2 = provided_images.get(w * 2, im.resize((w * 2, w * 2), Image.LANCZOS)) |
|||
im_w2.save(second_path) |
|||
last_w = w * 2 |
|||
|
|||
# iconutil -c icns -o {} {} |
|||
|
|||
fp_only = not filename |
|||
if fp_only: |
|||
f, filename = tempfile.mkstemp(".icns") |
|||
os.close(f) |
|||
convert_cmd = ["iconutil", "-c", "icns", "-o", filename, iconset] |
|||
convert_proc = subprocess.Popen( |
|||
convert_cmd, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL |
|||
) |
|||
|
|||
convert_proc.stdout.close() |
|||
|
|||
retcode = convert_proc.wait() |
|||
|
|||
if retcode: |
|||
raise subprocess.CalledProcessError(retcode, convert_cmd) |
|||
|
|||
if fp_only: |
|||
with open(filename, "rb") as f: |
|||
fp.write(f.read()) |
|||
|
|||
|
|||
Image.register_open(IcnsImageFile.format, IcnsImageFile, lambda x: x[:4] == b"icns") |
|||
Image.register_extension(IcnsImageFile.format, ".icns") |
|||
|
|||
if sys.platform == "darwin": |
|||
Image.register_save(IcnsImageFile.format, _save) |
|||
|
|||
Image.register_mime(IcnsImageFile.format, "image/icns") |
|||
|
|||
|
|||
if __name__ == "__main__": |
|||
|
|||
if len(sys.argv) < 2: |
|||
print("Syntax: python IcnsImagePlugin.py [file]") |
|||
sys.exit() |
|||
|
|||
with open(sys.argv[1], "rb") as fp: |
|||
imf = IcnsImageFile(fp) |
|||
for size in imf.info["sizes"]: |
|||
imf.size = size |
|||
imf.save("out-%s-%s-%s.png" % size) |
|||
with Image.open(sys.argv[1]) as im: |
|||
im.save("out.png") |
|||
if sys.platform == "windows": |
|||
os.startfile("out.png") |
@ -0,0 +1,328 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# Windows Icon support for PIL |
|||
# |
|||
# History: |
|||
# 96-05-27 fl Created |
|||
# |
|||
# Copyright (c) Secret Labs AB 1997. |
|||
# Copyright (c) Fredrik Lundh 1996. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
# This plugin is a refactored version of Win32IconImagePlugin by Bryan Davis |
|||
# <casadebender@gmail.com>. |
|||
# https://code.google.com/archive/p/casadebender/wikis/Win32IconImagePlugin.wiki |
|||
# |
|||
# Icon format references: |
|||
# * https://en.wikipedia.org/wiki/ICO_(file_format) |
|||
# * https://msdn.microsoft.com/en-us/library/ms997538.aspx |
|||
|
|||
|
|||
import struct |
|||
import warnings |
|||
from io import BytesIO |
|||
from math import ceil, log |
|||
|
|||
from . import BmpImagePlugin, Image, ImageFile, PngImagePlugin |
|||
from ._binary import i16le as i16 |
|||
from ._binary import i32le as i32 |
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
|
|||
_MAGIC = b"\0\0\1\0" |
|||
|
|||
|
|||
def _save(im, fp, filename): |
|||
fp.write(_MAGIC) # (2+2) |
|||
sizes = im.encoderinfo.get( |
|||
"sizes", |
|||
[(16, 16), (24, 24), (32, 32), (48, 48), (64, 64), (128, 128), (256, 256)], |
|||
) |
|||
width, height = im.size |
|||
sizes = filter( |
|||
lambda x: False |
|||
if (x[0] > width or x[1] > height or x[0] > 256 or x[1] > 256) |
|||
else True, |
|||
sizes, |
|||
) |
|||
sizes = list(sizes) |
|||
fp.write(struct.pack("<H", len(sizes))) # idCount(2) |
|||
offset = fp.tell() + len(sizes) * 16 |
|||
provided_images = {im.size: im for im in im.encoderinfo.get("append_images", [])} |
|||
for size in sizes: |
|||
width, height = size |
|||
# 0 means 256 |
|||
fp.write(struct.pack("B", width if width < 256 else 0)) # bWidth(1) |
|||
fp.write(struct.pack("B", height if height < 256 else 0)) # bHeight(1) |
|||
fp.write(b"\0") # bColorCount(1) |
|||
fp.write(b"\0") # bReserved(1) |
|||
fp.write(b"\0\0") # wPlanes(2) |
|||
fp.write(struct.pack("<H", 32)) # wBitCount(2) |
|||
|
|||
image_io = BytesIO() |
|||
tmp = provided_images.get(size) |
|||
if not tmp: |
|||
# TODO: invent a more convenient method for proportional scalings |
|||
tmp = im.copy() |
|||
tmp.thumbnail(size, Image.LANCZOS, reducing_gap=None) |
|||
tmp.save(image_io, "png") |
|||
image_io.seek(0) |
|||
image_bytes = image_io.read() |
|||
bytes_len = len(image_bytes) |
|||
fp.write(struct.pack("<I", bytes_len)) # dwBytesInRes(4) |
|||
fp.write(struct.pack("<I", offset)) # dwImageOffset(4) |
|||
current = fp.tell() |
|||
fp.seek(offset) |
|||
fp.write(image_bytes) |
|||
offset = offset + bytes_len |
|||
fp.seek(current) |
|||
|
|||
|
|||
def _accept(prefix): |
|||
return prefix[:4] == _MAGIC |
|||
|
|||
|
|||
class IcoFile: |
|||
def __init__(self, buf): |
|||
""" |
|||
Parse image from file-like object containing ico file data |
|||
""" |
|||
|
|||
# check magic |
|||
s = buf.read(6) |
|||
if not _accept(s): |
|||
raise SyntaxError("not an ICO file") |
|||
|
|||
self.buf = buf |
|||
self.entry = [] |
|||
|
|||
# Number of items in file |
|||
self.nb_items = i16(s, 4) |
|||
|
|||
# Get headers for each item |
|||
for i in range(self.nb_items): |
|||
s = buf.read(16) |
|||
|
|||
icon_header = { |
|||
"width": s[0], |
|||
"height": s[1], |
|||
"nb_color": s[2], # No. of colors in image (0 if >=8bpp) |
|||
"reserved": s[3], |
|||
"planes": i16(s, 4), |
|||
"bpp": i16(s, 6), |
|||
"size": i32(s, 8), |
|||
"offset": i32(s, 12), |
|||
} |
|||
|
|||
# See Wikipedia |
|||
for j in ("width", "height"): |
|||
if not icon_header[j]: |
|||
icon_header[j] = 256 |
|||
|
|||
# See Wikipedia notes about color depth. |
|||
# We need this just to differ images with equal sizes |
|||
icon_header["color_depth"] = ( |
|||
icon_header["bpp"] |
|||
or ( |
|||
icon_header["nb_color"] != 0 |
|||
and ceil(log(icon_header["nb_color"], 2)) |
|||
) |
|||
or 256 |
|||
) |
|||
|
|||
icon_header["dim"] = (icon_header["width"], icon_header["height"]) |
|||
icon_header["square"] = icon_header["width"] * icon_header["height"] |
|||
|
|||
self.entry.append(icon_header) |
|||
|
|||
self.entry = sorted(self.entry, key=lambda x: x["color_depth"]) |
|||
# ICO images are usually squares |
|||
# self.entry = sorted(self.entry, key=lambda x: x['width']) |
|||
self.entry = sorted(self.entry, key=lambda x: x["square"]) |
|||
self.entry.reverse() |
|||
|
|||
def sizes(self): |
|||
""" |
|||
Get a list of all available icon sizes and color depths. |
|||
""" |
|||
return {(h["width"], h["height"]) for h in self.entry} |
|||
|
|||
def getentryindex(self, size, bpp=False): |
|||
for (i, h) in enumerate(self.entry): |
|||
if size == h["dim"] and (bpp is False or bpp == h["color_depth"]): |
|||
return i |
|||
return 0 |
|||
|
|||
def getimage(self, size, bpp=False): |
|||
""" |
|||
Get an image from the icon |
|||
""" |
|||
return self.frame(self.getentryindex(size, bpp)) |
|||
|
|||
def frame(self, idx): |
|||
""" |
|||
Get an image from frame idx |
|||
""" |
|||
|
|||
header = self.entry[idx] |
|||
|
|||
self.buf.seek(header["offset"]) |
|||
data = self.buf.read(8) |
|||
self.buf.seek(header["offset"]) |
|||
|
|||
if data[:8] == PngImagePlugin._MAGIC: |
|||
# png frame |
|||
im = PngImagePlugin.PngImageFile(self.buf) |
|||
else: |
|||
# XOR + AND mask bmp frame |
|||
im = BmpImagePlugin.DibImageFile(self.buf) |
|||
Image._decompression_bomb_check(im.size) |
|||
|
|||
# change tile dimension to only encompass XOR image |
|||
im._size = (im.size[0], int(im.size[1] / 2)) |
|||
d, e, o, a = im.tile[0] |
|||
im.tile[0] = d, (0, 0) + im.size, o, a |
|||
|
|||
# figure out where AND mask image starts |
|||
mode = a[0] |
|||
bpp = 8 |
|||
for k, v in BmpImagePlugin.BIT2MODE.items(): |
|||
if mode == v[1]: |
|||
bpp = k |
|||
break |
|||
|
|||
if 32 == bpp: |
|||
# 32-bit color depth icon image allows semitransparent areas |
|||
# PIL's DIB format ignores transparency bits, recover them. |
|||
# The DIB is packed in BGRX byte order where X is the alpha |
|||
# channel. |
|||
|
|||
# Back up to start of bmp data |
|||
self.buf.seek(o) |
|||
# extract every 4th byte (eg. 3,7,11,15,...) |
|||
alpha_bytes = self.buf.read(im.size[0] * im.size[1] * 4)[3::4] |
|||
|
|||
# convert to an 8bpp grayscale image |
|||
mask = Image.frombuffer( |
|||
"L", # 8bpp |
|||
im.size, # (w, h) |
|||
alpha_bytes, # source chars |
|||
"raw", # raw decoder |
|||
("L", 0, -1), # 8bpp inverted, unpadded, reversed |
|||
) |
|||
else: |
|||
# get AND image from end of bitmap |
|||
w = im.size[0] |
|||
if (w % 32) > 0: |
|||
# bitmap row data is aligned to word boundaries |
|||
w += 32 - (im.size[0] % 32) |
|||
|
|||
# the total mask data is |
|||
# padded row size * height / bits per char |
|||
|
|||
and_mask_offset = o + int(im.size[0] * im.size[1] * (bpp / 8.0)) |
|||
total_bytes = int((w * im.size[1]) / 8) |
|||
|
|||
self.buf.seek(and_mask_offset) |
|||
mask_data = self.buf.read(total_bytes) |
|||
|
|||
# convert raw data to image |
|||
mask = Image.frombuffer( |
|||
"1", # 1 bpp |
|||
im.size, # (w, h) |
|||
mask_data, # source chars |
|||
"raw", # raw decoder |
|||
("1;I", int(w / 8), -1), # 1bpp inverted, padded, reversed |
|||
) |
|||
|
|||
# now we have two images, im is XOR image and mask is AND image |
|||
|
|||
# apply mask image as alpha channel |
|||
im = im.convert("RGBA") |
|||
im.putalpha(mask) |
|||
|
|||
return im |
|||
|
|||
|
|||
## |
|||
# Image plugin for Windows Icon files. |
|||
|
|||
|
|||
class IcoImageFile(ImageFile.ImageFile): |
|||
""" |
|||
PIL read-only image support for Microsoft Windows .ico files. |
|||
|
|||
By default the largest resolution image in the file will be loaded. This |
|||
can be changed by altering the 'size' attribute before calling 'load'. |
|||
|
|||
The info dictionary has a key 'sizes' that is a list of the sizes available |
|||
in the icon file. |
|||
|
|||
Handles classic, XP and Vista icon formats. |
|||
|
|||
When saving, PNG compression is used. Support for this was only added in |
|||
Windows Vista. |
|||
|
|||
This plugin is a refactored version of Win32IconImagePlugin by Bryan Davis |
|||
<casadebender@gmail.com>. |
|||
https://code.google.com/archive/p/casadebender/wikis/Win32IconImagePlugin.wiki |
|||
""" |
|||
|
|||
format = "ICO" |
|||
format_description = "Windows Icon" |
|||
|
|||
def _open(self): |
|||
self.ico = IcoFile(self.fp) |
|||
self.info["sizes"] = self.ico.sizes() |
|||
self.size = self.ico.entry[0]["dim"] |
|||
self.load() |
|||
|
|||
@property |
|||
def size(self): |
|||
return self._size |
|||
|
|||
@size.setter |
|||
def size(self, value): |
|||
if value not in self.info["sizes"]: |
|||
raise ValueError("This is not one of the allowed sizes of this image") |
|||
self._size = value |
|||
|
|||
def load(self): |
|||
if self.im and self.im.size == self.size: |
|||
# Already loaded |
|||
return |
|||
im = self.ico.getimage(self.size) |
|||
# if tile is PNG, it won't really be loaded yet |
|||
im.load() |
|||
self.im = im.im |
|||
self.mode = im.mode |
|||
if im.size != self.size: |
|||
warnings.warn("Image was not the expected size") |
|||
|
|||
index = self.ico.getentryindex(self.size) |
|||
sizes = list(self.info["sizes"]) |
|||
sizes[index] = im.size |
|||
self.info["sizes"] = set(sizes) |
|||
|
|||
self.size = im.size |
|||
|
|||
def load_seek(self): |
|||
# Flag the ImageFile.Parser so that it |
|||
# just does all the decode at the end. |
|||
pass |
|||
|
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
|
|||
|
|||
Image.register_open(IcoImageFile.format, IcoImageFile, _accept) |
|||
Image.register_save(IcoImageFile.format, _save) |
|||
Image.register_extension(IcoImageFile.format, ".ico") |
|||
|
|||
Image.register_mime(IcoImageFile.format, "image/x-icon") |
@ -0,0 +1,376 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# IFUNC IM file handling for PIL |
|||
# |
|||
# history: |
|||
# 1995-09-01 fl Created. |
|||
# 1997-01-03 fl Save palette images |
|||
# 1997-01-08 fl Added sequence support |
|||
# 1997-01-23 fl Added P and RGB save support |
|||
# 1997-05-31 fl Read floating point images |
|||
# 1997-06-22 fl Save floating point images |
|||
# 1997-08-27 fl Read and save 1-bit images |
|||
# 1998-06-25 fl Added support for RGB+LUT images |
|||
# 1998-07-02 fl Added support for YCC images |
|||
# 1998-07-15 fl Renamed offset attribute to avoid name clash |
|||
# 1998-12-29 fl Added I;16 support |
|||
# 2001-02-17 fl Use 're' instead of 'regex' (Python 2.1) (0.7) |
|||
# 2003-09-26 fl Added LA/PA support |
|||
# |
|||
# Copyright (c) 1997-2003 by Secret Labs AB. |
|||
# Copyright (c) 1995-2001 by Fredrik Lundh. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
|
|||
import os |
|||
import re |
|||
|
|||
from . import Image, ImageFile, ImagePalette |
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Standard tags |
|||
|
|||
COMMENT = "Comment" |
|||
DATE = "Date" |
|||
EQUIPMENT = "Digitalization equipment" |
|||
FRAMES = "File size (no of images)" |
|||
LUT = "Lut" |
|||
NAME = "Name" |
|||
SCALE = "Scale (x,y)" |
|||
SIZE = "Image size (x*y)" |
|||
MODE = "Image type" |
|||
|
|||
TAGS = { |
|||
COMMENT: 0, |
|||
DATE: 0, |
|||
EQUIPMENT: 0, |
|||
FRAMES: 0, |
|||
LUT: 0, |
|||
NAME: 0, |
|||
SCALE: 0, |
|||
SIZE: 0, |
|||
MODE: 0, |
|||
} |
|||
|
|||
OPEN = { |
|||
# ifunc93/p3cfunc formats |
|||
"0 1 image": ("1", "1"), |
|||
"L 1 image": ("1", "1"), |
|||
"Greyscale image": ("L", "L"), |
|||
"Grayscale image": ("L", "L"), |
|||
"RGB image": ("RGB", "RGB;L"), |
|||
"RLB image": ("RGB", "RLB"), |
|||
"RYB image": ("RGB", "RLB"), |
|||
"B1 image": ("1", "1"), |
|||
"B2 image": ("P", "P;2"), |
|||
"B4 image": ("P", "P;4"), |
|||
"X 24 image": ("RGB", "RGB"), |
|||
"L 32 S image": ("I", "I;32"), |
|||
"L 32 F image": ("F", "F;32"), |
|||
# old p3cfunc formats |
|||
"RGB3 image": ("RGB", "RGB;T"), |
|||
"RYB3 image": ("RGB", "RYB;T"), |
|||
# extensions |
|||
"LA image": ("LA", "LA;L"), |
|||
"PA image": ("LA", "PA;L"), |
|||
"RGBA image": ("RGBA", "RGBA;L"), |
|||
"RGBX image": ("RGBX", "RGBX;L"), |
|||
"CMYK image": ("CMYK", "CMYK;L"), |
|||
"YCC image": ("YCbCr", "YCbCr;L"), |
|||
} |
|||
|
|||
# ifunc95 extensions |
|||
for i in ["8", "8S", "16", "16S", "32", "32F"]: |
|||
OPEN[f"L {i} image"] = ("F", f"F;{i}") |
|||
OPEN[f"L*{i} image"] = ("F", f"F;{i}") |
|||
for i in ["16", "16L", "16B"]: |
|||
OPEN[f"L {i} image"] = (f"I;{i}", f"I;{i}") |
|||
OPEN[f"L*{i} image"] = (f"I;{i}", f"I;{i}") |
|||
for i in ["32S"]: |
|||
OPEN[f"L {i} image"] = ("I", f"I;{i}") |
|||
OPEN[f"L*{i} image"] = ("I", f"I;{i}") |
|||
for i in range(2, 33): |
|||
OPEN[f"L*{i} image"] = ("F", f"F;{i}") |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Read IM directory |
|||
|
|||
split = re.compile(br"^([A-Za-z][^:]*):[ \t]*(.*)[ \t]*$") |
|||
|
|||
|
|||
def number(s): |
|||
try: |
|||
return int(s) |
|||
except ValueError: |
|||
return float(s) |
|||
|
|||
|
|||
## |
|||
# Image plugin for the IFUNC IM file format. |
|||
|
|||
|
|||
class ImImageFile(ImageFile.ImageFile): |
|||
|
|||
format = "IM" |
|||
format_description = "IFUNC Image Memory" |
|||
_close_exclusive_fp_after_loading = False |
|||
|
|||
def _open(self): |
|||
|
|||
# Quick rejection: if there's not an LF among the first |
|||
# 100 bytes, this is (probably) not a text header. |
|||
|
|||
if b"\n" not in self.fp.read(100): |
|||
raise SyntaxError("not an IM file") |
|||
self.fp.seek(0) |
|||
|
|||
n = 0 |
|||
|
|||
# Default values |
|||
self.info[MODE] = "L" |
|||
self.info[SIZE] = (512, 512) |
|||
self.info[FRAMES] = 1 |
|||
|
|||
self.rawmode = "L" |
|||
|
|||
while True: |
|||
|
|||
s = self.fp.read(1) |
|||
|
|||
# Some versions of IFUNC uses \n\r instead of \r\n... |
|||
if s == b"\r": |
|||
continue |
|||
|
|||
if not s or s == b"\0" or s == b"\x1A": |
|||
break |
|||
|
|||
# FIXME: this may read whole file if not a text file |
|||
s = s + self.fp.readline() |
|||
|
|||
if len(s) > 100: |
|||
raise SyntaxError("not an IM file") |
|||
|
|||
if s[-2:] == b"\r\n": |
|||
s = s[:-2] |
|||
elif s[-1:] == b"\n": |
|||
s = s[:-1] |
|||
|
|||
try: |
|||
m = split.match(s) |
|||
except re.error as e: |
|||
raise SyntaxError("not an IM file") from e |
|||
|
|||
if m: |
|||
|
|||
k, v = m.group(1, 2) |
|||
|
|||
# Don't know if this is the correct encoding, |
|||
# but a decent guess (I guess) |
|||
k = k.decode("latin-1", "replace") |
|||
v = v.decode("latin-1", "replace") |
|||
|
|||
# Convert value as appropriate |
|||
if k in [FRAMES, SCALE, SIZE]: |
|||
v = v.replace("*", ",") |
|||
v = tuple(map(number, v.split(","))) |
|||
if len(v) == 1: |
|||
v = v[0] |
|||
elif k == MODE and v in OPEN: |
|||
v, self.rawmode = OPEN[v] |
|||
|
|||
# Add to dictionary. Note that COMMENT tags are |
|||
# combined into a list of strings. |
|||
if k == COMMENT: |
|||
if k in self.info: |
|||
self.info[k].append(v) |
|||
else: |
|||
self.info[k] = [v] |
|||
else: |
|||
self.info[k] = v |
|||
|
|||
if k in TAGS: |
|||
n += 1 |
|||
|
|||
else: |
|||
|
|||
raise SyntaxError( |
|||
"Syntax error in IM header: " + s.decode("ascii", "replace") |
|||
) |
|||
|
|||
if not n: |
|||
raise SyntaxError("Not an IM file") |
|||
|
|||
# Basic attributes |
|||
self._size = self.info[SIZE] |
|||
self.mode = self.info[MODE] |
|||
|
|||
# Skip forward to start of image data |
|||
while s and s[0:1] != b"\x1A": |
|||
s = self.fp.read(1) |
|||
if not s: |
|||
raise SyntaxError("File truncated") |
|||
|
|||
if LUT in self.info: |
|||
# convert lookup table to palette or lut attribute |
|||
palette = self.fp.read(768) |
|||
greyscale = 1 # greyscale palette |
|||
linear = 1 # linear greyscale palette |
|||
for i in range(256): |
|||
if palette[i] == palette[i + 256] == palette[i + 512]: |
|||
if palette[i] != i: |
|||
linear = 0 |
|||
else: |
|||
greyscale = 0 |
|||
if self.mode in ["L", "LA", "P", "PA"]: |
|||
if greyscale: |
|||
if not linear: |
|||
self.lut = list(palette[:256]) |
|||
else: |
|||
if self.mode in ["L", "P"]: |
|||
self.mode = self.rawmode = "P" |
|||
elif self.mode in ["LA", "PA"]: |
|||
self.mode = "PA" |
|||
self.rawmode = "PA;L" |
|||
self.palette = ImagePalette.raw("RGB;L", palette) |
|||
elif self.mode == "RGB": |
|||
if not greyscale or not linear: |
|||
self.lut = list(palette) |
|||
|
|||
self.frame = 0 |
|||
|
|||
self.__offset = offs = self.fp.tell() |
|||
|
|||
self.__fp = self.fp # FIXME: hack |
|||
|
|||
if self.rawmode[:2] == "F;": |
|||
|
|||
# ifunc95 formats |
|||
try: |
|||
# use bit decoder (if necessary) |
|||
bits = int(self.rawmode[2:]) |
|||
if bits not in [8, 16, 32]: |
|||
self.tile = [("bit", (0, 0) + self.size, offs, (bits, 8, 3, 0, -1))] |
|||
return |
|||
except ValueError: |
|||
pass |
|||
|
|||
if self.rawmode in ["RGB;T", "RYB;T"]: |
|||
# Old LabEye/3PC files. Would be very surprised if anyone |
|||
# ever stumbled upon such a file ;-) |
|||
size = self.size[0] * self.size[1] |
|||
self.tile = [ |
|||
("raw", (0, 0) + self.size, offs, ("G", 0, -1)), |
|||
("raw", (0, 0) + self.size, offs + size, ("R", 0, -1)), |
|||
("raw", (0, 0) + self.size, offs + 2 * size, ("B", 0, -1)), |
|||
] |
|||
else: |
|||
# LabEye/IFUNC files |
|||
self.tile = [("raw", (0, 0) + self.size, offs, (self.rawmode, 0, -1))] |
|||
|
|||
@property |
|||
def n_frames(self): |
|||
return self.info[FRAMES] |
|||
|
|||
@property |
|||
def is_animated(self): |
|||
return self.info[FRAMES] > 1 |
|||
|
|||
def seek(self, frame): |
|||
if not self._seek_check(frame): |
|||
return |
|||
|
|||
self.frame = frame |
|||
|
|||
if self.mode == "1": |
|||
bits = 1 |
|||
else: |
|||
bits = 8 * len(self.mode) |
|||
|
|||
size = ((self.size[0] * bits + 7) // 8) * self.size[1] |
|||
offs = self.__offset + frame * size |
|||
|
|||
self.fp = self.__fp |
|||
|
|||
self.tile = [("raw", (0, 0) + self.size, offs, (self.rawmode, 0, -1))] |
|||
|
|||
def tell(self): |
|||
return self.frame |
|||
|
|||
def _close__fp(self): |
|||
try: |
|||
if self.__fp != self.fp: |
|||
self.__fp.close() |
|||
except AttributeError: |
|||
pass |
|||
finally: |
|||
self.__fp = None |
|||
|
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
# Save IM files |
|||
|
|||
|
|||
SAVE = { |
|||
# mode: (im type, raw mode) |
|||
"1": ("0 1", "1"), |
|||
"L": ("Greyscale", "L"), |
|||
"LA": ("LA", "LA;L"), |
|||
"P": ("Greyscale", "P"), |
|||
"PA": ("LA", "PA;L"), |
|||
"I": ("L 32S", "I;32S"), |
|||
"I;16": ("L 16", "I;16"), |
|||
"I;16L": ("L 16L", "I;16L"), |
|||
"I;16B": ("L 16B", "I;16B"), |
|||
"F": ("L 32F", "F;32F"), |
|||
"RGB": ("RGB", "RGB;L"), |
|||
"RGBA": ("RGBA", "RGBA;L"), |
|||
"RGBX": ("RGBX", "RGBX;L"), |
|||
"CMYK": ("CMYK", "CMYK;L"), |
|||
"YCbCr": ("YCC", "YCbCr;L"), |
|||
} |
|||
|
|||
|
|||
def _save(im, fp, filename): |
|||
|
|||
try: |
|||
image_type, rawmode = SAVE[im.mode] |
|||
except KeyError as e: |
|||
raise ValueError(f"Cannot save {im.mode} images as IM") from e |
|||
|
|||
frames = im.encoderinfo.get("frames", 1) |
|||
|
|||
fp.write(f"Image type: {image_type} image\r\n".encode("ascii")) |
|||
if filename: |
|||
# Each line must be 100 characters or less, |
|||
# or: SyntaxError("not an IM file") |
|||
# 8 characters are used for "Name: " and "\r\n" |
|||
# Keep just the filename, ditch the potentially overlong path |
|||
name, ext = os.path.splitext(os.path.basename(filename)) |
|||
name = "".join([name[: 92 - len(ext)], ext]) |
|||
|
|||
fp.write(f"Name: {name}\r\n".encode("ascii")) |
|||
fp.write(("Image size (x*y): %d*%d\r\n" % im.size).encode("ascii")) |
|||
fp.write(f"File size (no of images): {frames}\r\n".encode("ascii")) |
|||
if im.mode in ["P", "PA"]: |
|||
fp.write(b"Lut: 1\r\n") |
|||
fp.write(b"\000" * (511 - fp.tell()) + b"\032") |
|||
if im.mode in ["P", "PA"]: |
|||
fp.write(im.im.getpalette("RGB", "RGB;L")) # 768 bytes |
|||
ImageFile._save(im, fp, [("raw", (0, 0) + im.size, 0, (rawmode, 0, -1))]) |
|||
|
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
# Registry |
|||
|
|||
|
|||
Image.register_open(ImImageFile.format, ImImageFile) |
|||
Image.register_save(ImImageFile.format, _save) |
|||
|
|||
Image.register_extension(ImImageFile.format, ".im") |
File diff suppressed because it is too large
@ -0,0 +1,328 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# standard channel operations |
|||
# |
|||
# History: |
|||
# 1996-03-24 fl Created |
|||
# 1996-08-13 fl Added logical operations (for "1" images) |
|||
# 2000-10-12 fl Added offset method (from Image.py) |
|||
# |
|||
# Copyright (c) 1997-2000 by Secret Labs AB |
|||
# Copyright (c) 1996-2000 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
from . import Image |
|||
|
|||
|
|||
def constant(image, value): |
|||
"""Fill a channel with a given grey level. |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
return Image.new("L", image.size, value) |
|||
|
|||
|
|||
def duplicate(image): |
|||
"""Copy a channel. Alias for :py:meth:`PIL.Image.Image.copy`. |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
return image.copy() |
|||
|
|||
|
|||
def invert(image): |
|||
""" |
|||
Invert an image (channel). |
|||
|
|||
.. code-block:: python |
|||
|
|||
out = MAX - image |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
image.load() |
|||
return image._new(image.im.chop_invert()) |
|||
|
|||
|
|||
def lighter(image1, image2): |
|||
""" |
|||
Compares the two images, pixel by pixel, and returns a new image containing |
|||
the lighter values. |
|||
|
|||
.. code-block:: python |
|||
|
|||
out = max(image1, image2) |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
image1.load() |
|||
image2.load() |
|||
return image1._new(image1.im.chop_lighter(image2.im)) |
|||
|
|||
|
|||
def darker(image1, image2): |
|||
""" |
|||
Compares the two images, pixel by pixel, and returns a new image containing |
|||
the darker values. |
|||
|
|||
.. code-block:: python |
|||
|
|||
out = min(image1, image2) |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
image1.load() |
|||
image2.load() |
|||
return image1._new(image1.im.chop_darker(image2.im)) |
|||
|
|||
|
|||
def difference(image1, image2): |
|||
""" |
|||
Returns the absolute value of the pixel-by-pixel difference between the two |
|||
images. |
|||
|
|||
.. code-block:: python |
|||
|
|||
out = abs(image1 - image2) |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
image1.load() |
|||
image2.load() |
|||
return image1._new(image1.im.chop_difference(image2.im)) |
|||
|
|||
|
|||
def multiply(image1, image2): |
|||
""" |
|||
Superimposes two images on top of each other. |
|||
|
|||
If you multiply an image with a solid black image, the result is black. If |
|||
you multiply with a solid white image, the image is unaffected. |
|||
|
|||
.. code-block:: python |
|||
|
|||
out = image1 * image2 / MAX |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
image1.load() |
|||
image2.load() |
|||
return image1._new(image1.im.chop_multiply(image2.im)) |
|||
|
|||
|
|||
def screen(image1, image2): |
|||
""" |
|||
Superimposes two inverted images on top of each other. |
|||
|
|||
.. code-block:: python |
|||
|
|||
out = MAX - ((MAX - image1) * (MAX - image2) / MAX) |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
image1.load() |
|||
image2.load() |
|||
return image1._new(image1.im.chop_screen(image2.im)) |
|||
|
|||
|
|||
def soft_light(image1, image2): |
|||
""" |
|||
Superimposes two images on top of each other using the Soft Light algorithm |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
image1.load() |
|||
image2.load() |
|||
return image1._new(image1.im.chop_soft_light(image2.im)) |
|||
|
|||
|
|||
def hard_light(image1, image2): |
|||
""" |
|||
Superimposes two images on top of each other using the Hard Light algorithm |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
image1.load() |
|||
image2.load() |
|||
return image1._new(image1.im.chop_hard_light(image2.im)) |
|||
|
|||
|
|||
def overlay(image1, image2): |
|||
""" |
|||
Superimposes two images on top of each other using the Overlay algorithm |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
image1.load() |
|||
image2.load() |
|||
return image1._new(image1.im.chop_overlay(image2.im)) |
|||
|
|||
|
|||
def add(image1, image2, scale=1.0, offset=0): |
|||
""" |
|||
Adds two images, dividing the result by scale and adding the |
|||
offset. If omitted, scale defaults to 1.0, and offset to 0.0. |
|||
|
|||
.. code-block:: python |
|||
|
|||
out = ((image1 + image2) / scale + offset) |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
image1.load() |
|||
image2.load() |
|||
return image1._new(image1.im.chop_add(image2.im, scale, offset)) |
|||
|
|||
|
|||
def subtract(image1, image2, scale=1.0, offset=0): |
|||
""" |
|||
Subtracts two images, dividing the result by scale and adding the offset. |
|||
If omitted, scale defaults to 1.0, and offset to 0.0. |
|||
|
|||
.. code-block:: python |
|||
|
|||
out = ((image1 - image2) / scale + offset) |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
image1.load() |
|||
image2.load() |
|||
return image1._new(image1.im.chop_subtract(image2.im, scale, offset)) |
|||
|
|||
|
|||
def add_modulo(image1, image2): |
|||
"""Add two images, without clipping the result. |
|||
|
|||
.. code-block:: python |
|||
|
|||
out = ((image1 + image2) % MAX) |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
image1.load() |
|||
image2.load() |
|||
return image1._new(image1.im.chop_add_modulo(image2.im)) |
|||
|
|||
|
|||
def subtract_modulo(image1, image2): |
|||
"""Subtract two images, without clipping the result. |
|||
|
|||
.. code-block:: python |
|||
|
|||
out = ((image1 - image2) % MAX) |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
image1.load() |
|||
image2.load() |
|||
return image1._new(image1.im.chop_subtract_modulo(image2.im)) |
|||
|
|||
|
|||
def logical_and(image1, image2): |
|||
"""Logical AND between two images. |
|||
|
|||
Both of the images must have mode "1". If you would like to perform a |
|||
logical AND on an image with a mode other than "1", try |
|||
:py:meth:`~PIL.ImageChops.multiply` instead, using a black-and-white mask |
|||
as the second image. |
|||
|
|||
.. code-block:: python |
|||
|
|||
out = ((image1 and image2) % MAX) |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
image1.load() |
|||
image2.load() |
|||
return image1._new(image1.im.chop_and(image2.im)) |
|||
|
|||
|
|||
def logical_or(image1, image2): |
|||
"""Logical OR between two images. |
|||
|
|||
Both of the images must have mode "1". |
|||
|
|||
.. code-block:: python |
|||
|
|||
out = ((image1 or image2) % MAX) |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
image1.load() |
|||
image2.load() |
|||
return image1._new(image1.im.chop_or(image2.im)) |
|||
|
|||
|
|||
def logical_xor(image1, image2): |
|||
"""Logical XOR between two images. |
|||
|
|||
Both of the images must have mode "1". |
|||
|
|||
.. code-block:: python |
|||
|
|||
out = ((bool(image1) != bool(image2)) % MAX) |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
image1.load() |
|||
image2.load() |
|||
return image1._new(image1.im.chop_xor(image2.im)) |
|||
|
|||
|
|||
def blend(image1, image2, alpha): |
|||
"""Blend images using constant transparency weight. Alias for |
|||
:py:func:`PIL.Image.blend`. |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
return Image.blend(image1, image2, alpha) |
|||
|
|||
|
|||
def composite(image1, image2, mask): |
|||
"""Create composite using transparency mask. Alias for |
|||
:py:func:`PIL.Image.composite`. |
|||
|
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
return Image.composite(image1, image2, mask) |
|||
|
|||
|
|||
def offset(image, xoffset, yoffset=None): |
|||
"""Returns a copy of the image where data has been offset by the given |
|||
distances. Data wraps around the edges. If ``yoffset`` is omitted, it |
|||
is assumed to be equal to ``xoffset``. |
|||
|
|||
:param xoffset: The horizontal distance. |
|||
:param yoffset: The vertical distance. If omitted, both |
|||
distances are set to the same value. |
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
|
|||
if yoffset is None: |
|||
yoffset = xoffset |
|||
image.load() |
|||
return image._new(image.im.offset(xoffset, yoffset)) |
@ -0,0 +1,999 @@ |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
|
|||
# Optional color management support, based on Kevin Cazabon's PyCMS |
|||
# library. |
|||
|
|||
# History: |
|||
|
|||
# 2009-03-08 fl Added to PIL. |
|||
|
|||
# Copyright (C) 2002-2003 Kevin Cazabon |
|||
# Copyright (c) 2009 by Fredrik Lundh |
|||
# Copyright (c) 2013 by Eric Soroos |
|||
|
|||
# See the README file for information on usage and redistribution. See |
|||
# below for the original description. |
|||
|
|||
import sys |
|||
|
|||
from PIL import Image |
|||
|
|||
try: |
|||
from PIL import _imagingcms |
|||
except ImportError as ex: |
|||
# Allow error import for doc purposes, but error out when accessing |
|||
# anything in core. |
|||
from ._util import deferred_error |
|||
|
|||
_imagingcms = deferred_error(ex) |
|||
|
|||
DESCRIPTION = """ |
|||
pyCMS |
|||
|
|||
a Python / PIL interface to the littleCMS ICC Color Management System |
|||
Copyright (C) 2002-2003 Kevin Cazabon |
|||
kevin@cazabon.com |
|||
http://www.cazabon.com |
|||
|
|||
pyCMS home page: http://www.cazabon.com/pyCMS |
|||
littleCMS home page: http://www.littlecms.com |
|||
(littleCMS is Copyright (C) 1998-2001 Marti Maria) |
|||
|
|||
Originally released under LGPL. Graciously donated to PIL in |
|||
March 2009, for distribution under the standard PIL license |
|||
|
|||
The pyCMS.py module provides a "clean" interface between Python/PIL and |
|||
pyCMSdll, taking care of some of the more complex handling of the direct |
|||
pyCMSdll functions, as well as error-checking and making sure that all |
|||
relevant data is kept together. |
|||
|
|||
While it is possible to call pyCMSdll functions directly, it's not highly |
|||
recommended. |
|||
|
|||
Version History: |
|||
|
|||
1.0.0 pil Oct 2013 Port to LCMS 2. |
|||
|
|||
0.1.0 pil mod March 10, 2009 |
|||
|
|||
Renamed display profile to proof profile. The proof |
|||
profile is the profile of the device that is being |
|||
simulated, not the profile of the device which is |
|||
actually used to display/print the final simulation |
|||
(that'd be the output profile) - also see LCMSAPI.txt |
|||
input colorspace -> using 'renderingIntent' -> proof |
|||
colorspace -> using 'proofRenderingIntent' -> output |
|||
colorspace |
|||
|
|||
Added LCMS FLAGS support. |
|||
Added FLAGS["SOFTPROOFING"] as default flag for |
|||
buildProofTransform (otherwise the proof profile/intent |
|||
would be ignored). |
|||
|
|||
0.1.0 pil March 2009 - added to PIL, as PIL.ImageCms |
|||
|
|||
0.0.2 alpha Jan 6, 2002 |
|||
|
|||
Added try/except statements around type() checks of |
|||
potential CObjects... Python won't let you use type() |
|||
on them, and raises a TypeError (stupid, if you ask |
|||
me!) |
|||
|
|||
Added buildProofTransformFromOpenProfiles() function. |
|||
Additional fixes in DLL, see DLL code for details. |
|||
|
|||
0.0.1 alpha first public release, Dec. 26, 2002 |
|||
|
|||
Known to-do list with current version (of Python interface, not pyCMSdll): |
|||
|
|||
none |
|||
|
|||
""" |
|||
|
|||
VERSION = "1.0.0 pil" |
|||
|
|||
# --------------------------------------------------------------------. |
|||
|
|||
core = _imagingcms |
|||
|
|||
# |
|||
# intent/direction values |
|||
|
|||
INTENT_PERCEPTUAL = 0 |
|||
INTENT_RELATIVE_COLORIMETRIC = 1 |
|||
INTENT_SATURATION = 2 |
|||
INTENT_ABSOLUTE_COLORIMETRIC = 3 |
|||
|
|||
DIRECTION_INPUT = 0 |
|||
DIRECTION_OUTPUT = 1 |
|||
DIRECTION_PROOF = 2 |
|||
|
|||
# |
|||
# flags |
|||
|
|||
FLAGS = { |
|||
"MATRIXINPUT": 1, |
|||
"MATRIXOUTPUT": 2, |
|||
"MATRIXONLY": (1 | 2), |
|||
"NOWHITEONWHITEFIXUP": 4, # Don't hot fix scum dot |
|||
# Don't create prelinearization tables on precalculated transforms |
|||
# (internal use): |
|||
"NOPRELINEARIZATION": 16, |
|||
"GUESSDEVICECLASS": 32, # Guess device class (for transform2devicelink) |
|||
"NOTCACHE": 64, # Inhibit 1-pixel cache |
|||
"NOTPRECALC": 256, |
|||
"NULLTRANSFORM": 512, # Don't transform anyway |
|||
"HIGHRESPRECALC": 1024, # Use more memory to give better accuracy |
|||
"LOWRESPRECALC": 2048, # Use less memory to minimize resources |
|||
"WHITEBLACKCOMPENSATION": 8192, |
|||
"BLACKPOINTCOMPENSATION": 8192, |
|||
"GAMUTCHECK": 4096, # Out of Gamut alarm |
|||
"SOFTPROOFING": 16384, # Do softproofing |
|||
"PRESERVEBLACK": 32768, # Black preservation |
|||
"NODEFAULTRESOURCEDEF": 16777216, # CRD special |
|||
"GRIDPOINTS": lambda n: ((n) & 0xFF) << 16, # Gridpoints |
|||
} |
|||
|
|||
_MAX_FLAG = 0 |
|||
for flag in FLAGS.values(): |
|||
if isinstance(flag, int): |
|||
_MAX_FLAG = _MAX_FLAG | flag |
|||
|
|||
|
|||
# --------------------------------------------------------------------. |
|||
# Experimental PIL-level API |
|||
# --------------------------------------------------------------------. |
|||
|
|||
## |
|||
# Profile. |
|||
|
|||
|
|||
class ImageCmsProfile: |
|||
def __init__(self, profile): |
|||
""" |
|||
:param profile: Either a string representing a filename, |
|||
a file like object containing a profile or a |
|||
low-level profile object |
|||
|
|||
""" |
|||
|
|||
if isinstance(profile, str): |
|||
if sys.platform == "win32": |
|||
profile_bytes_path = profile.encode() |
|||
try: |
|||
profile_bytes_path.decode("ascii") |
|||
except UnicodeDecodeError: |
|||
with open(profile, "rb") as f: |
|||
self._set(core.profile_frombytes(f.read())) |
|||
return |
|||
self._set(core.profile_open(profile), profile) |
|||
elif hasattr(profile, "read"): |
|||
self._set(core.profile_frombytes(profile.read())) |
|||
elif isinstance(profile, _imagingcms.CmsProfile): |
|||
self._set(profile) |
|||
else: |
|||
raise TypeError("Invalid type for Profile") |
|||
|
|||
def _set(self, profile, filename=None): |
|||
self.profile = profile |
|||
self.filename = filename |
|||
if profile: |
|||
self.product_name = None # profile.product_name |
|||
self.product_info = None # profile.product_info |
|||
else: |
|||
self.product_name = None |
|||
self.product_info = None |
|||
|
|||
def tobytes(self): |
|||
""" |
|||
Returns the profile in a format suitable for embedding in |
|||
saved images. |
|||
|
|||
:returns: a bytes object containing the ICC profile. |
|||
""" |
|||
|
|||
return core.profile_tobytes(self.profile) |
|||
|
|||
|
|||
class ImageCmsTransform(Image.ImagePointHandler): |
|||
|
|||
""" |
|||
Transform. This can be used with the procedural API, or with the standard |
|||
:py:func:`~PIL.Image.Image.point` method. |
|||
|
|||
Will return the output profile in the ``output.info['icc_profile']``. |
|||
""" |
|||
|
|||
def __init__( |
|||
self, |
|||
input, |
|||
output, |
|||
input_mode, |
|||
output_mode, |
|||
intent=INTENT_PERCEPTUAL, |
|||
proof=None, |
|||
proof_intent=INTENT_ABSOLUTE_COLORIMETRIC, |
|||
flags=0, |
|||
): |
|||
if proof is None: |
|||
self.transform = core.buildTransform( |
|||
input.profile, output.profile, input_mode, output_mode, intent, flags |
|||
) |
|||
else: |
|||
self.transform = core.buildProofTransform( |
|||
input.profile, |
|||
output.profile, |
|||
proof.profile, |
|||
input_mode, |
|||
output_mode, |
|||
intent, |
|||
proof_intent, |
|||
flags, |
|||
) |
|||
# Note: inputMode and outputMode are for pyCMS compatibility only |
|||
self.input_mode = self.inputMode = input_mode |
|||
self.output_mode = self.outputMode = output_mode |
|||
|
|||
self.output_profile = output |
|||
|
|||
def point(self, im): |
|||
return self.apply(im) |
|||
|
|||
def apply(self, im, imOut=None): |
|||
im.load() |
|||
if imOut is None: |
|||
imOut = Image.new(self.output_mode, im.size, None) |
|||
self.transform.apply(im.im.id, imOut.im.id) |
|||
imOut.info["icc_profile"] = self.output_profile.tobytes() |
|||
return imOut |
|||
|
|||
def apply_in_place(self, im): |
|||
im.load() |
|||
if im.mode != self.output_mode: |
|||
raise ValueError("mode mismatch") # wrong output mode |
|||
self.transform.apply(im.im.id, im.im.id) |
|||
im.info["icc_profile"] = self.output_profile.tobytes() |
|||
return im |
|||
|
|||
|
|||
def get_display_profile(handle=None): |
|||
""" |
|||
(experimental) Fetches the profile for the current display device. |
|||
|
|||
:returns: ``None`` if the profile is not known. |
|||
""" |
|||
|
|||
if sys.platform != "win32": |
|||
return None |
|||
|
|||
from PIL import ImageWin |
|||
|
|||
if isinstance(handle, ImageWin.HDC): |
|||
profile = core.get_display_profile_win32(handle, 1) |
|||
else: |
|||
profile = core.get_display_profile_win32(handle or 0) |
|||
if profile is None: |
|||
return None |
|||
return ImageCmsProfile(profile) |
|||
|
|||
|
|||
# --------------------------------------------------------------------. |
|||
# pyCMS compatible layer |
|||
# --------------------------------------------------------------------. |
|||
|
|||
|
|||
class PyCMSError(Exception): |
|||
|
|||
"""(pyCMS) Exception class. |
|||
This is used for all errors in the pyCMS API.""" |
|||
|
|||
pass |
|||
|
|||
|
|||
def profileToProfile( |
|||
im, |
|||
inputProfile, |
|||
outputProfile, |
|||
renderingIntent=INTENT_PERCEPTUAL, |
|||
outputMode=None, |
|||
inPlace=False, |
|||
flags=0, |
|||
): |
|||
""" |
|||
(pyCMS) Applies an ICC transformation to a given image, mapping from |
|||
``inputProfile`` to ``outputProfile``. |
|||
|
|||
If the input or output profiles specified are not valid filenames, a |
|||
:exc:`PyCMSError` will be raised. If ``inPlace`` is ``True`` and |
|||
``outputMode != im.mode``, a :exc:`PyCMSError` will be raised. |
|||
If an error occurs during application of the profiles, |
|||
a :exc:`PyCMSError` will be raised. |
|||
If ``outputMode`` is not a mode supported by the ``outputProfile`` (or by pyCMS), |
|||
a :exc:`PyCMSError` will be raised. |
|||
|
|||
This function applies an ICC transformation to im from ``inputProfile``'s |
|||
color space to ``outputProfile``'s color space using the specified rendering |
|||
intent to decide how to handle out-of-gamut colors. |
|||
|
|||
``outputMode`` can be used to specify that a color mode conversion is to |
|||
be done using these profiles, but the specified profiles must be able |
|||
to handle that mode. I.e., if converting im from RGB to CMYK using |
|||
profiles, the input profile must handle RGB data, and the output |
|||
profile must handle CMYK data. |
|||
|
|||
:param im: An open :py:class:`~PIL.Image.Image` object (i.e. Image.new(...) |
|||
or Image.open(...), etc.) |
|||
:param inputProfile: String, as a valid filename path to the ICC input |
|||
profile you wish to use for this image, or a profile object |
|||
:param outputProfile: String, as a valid filename path to the ICC output |
|||
profile you wish to use for this image, or a profile object |
|||
:param renderingIntent: Integer (0-3) specifying the rendering intent you |
|||
wish to use for the transform |
|||
|
|||
ImageCms.INTENT_PERCEPTUAL = 0 (DEFAULT) |
|||
ImageCms.INTENT_RELATIVE_COLORIMETRIC = 1 |
|||
ImageCms.INTENT_SATURATION = 2 |
|||
ImageCms.INTENT_ABSOLUTE_COLORIMETRIC = 3 |
|||
|
|||
see the pyCMS documentation for details on rendering intents and what |
|||
they do. |
|||
:param outputMode: A valid PIL mode for the output image (i.e. "RGB", |
|||
"CMYK", etc.). Note: if rendering the image "inPlace", outputMode |
|||
MUST be the same mode as the input, or omitted completely. If |
|||
omitted, the outputMode will be the same as the mode of the input |
|||
image (im.mode) |
|||
:param inPlace: Boolean. If ``True``, the original image is modified in-place, |
|||
and ``None`` is returned. If ``False`` (default), a new |
|||
:py:class:`~PIL.Image.Image` object is returned with the transform applied. |
|||
:param flags: Integer (0-...) specifying additional flags |
|||
:returns: Either None or a new :py:class:`~PIL.Image.Image` object, depending on |
|||
the value of ``inPlace`` |
|||
:exception PyCMSError: |
|||
""" |
|||
|
|||
if outputMode is None: |
|||
outputMode = im.mode |
|||
|
|||
if not isinstance(renderingIntent, int) or not (0 <= renderingIntent <= 3): |
|||
raise PyCMSError("renderingIntent must be an integer between 0 and 3") |
|||
|
|||
if not isinstance(flags, int) or not (0 <= flags <= _MAX_FLAG): |
|||
raise PyCMSError("flags must be an integer between 0 and %s" + _MAX_FLAG) |
|||
|
|||
try: |
|||
if not isinstance(inputProfile, ImageCmsProfile): |
|||
inputProfile = ImageCmsProfile(inputProfile) |
|||
if not isinstance(outputProfile, ImageCmsProfile): |
|||
outputProfile = ImageCmsProfile(outputProfile) |
|||
transform = ImageCmsTransform( |
|||
inputProfile, |
|||
outputProfile, |
|||
im.mode, |
|||
outputMode, |
|||
renderingIntent, |
|||
flags=flags, |
|||
) |
|||
if inPlace: |
|||
transform.apply_in_place(im) |
|||
imOut = None |
|||
else: |
|||
imOut = transform.apply(im) |
|||
except (OSError, TypeError, ValueError) as v: |
|||
raise PyCMSError(v) from v |
|||
|
|||
return imOut |
|||
|
|||
|
|||
def getOpenProfile(profileFilename): |
|||
""" |
|||
(pyCMS) Opens an ICC profile file. |
|||
|
|||
The PyCMSProfile object can be passed back into pyCMS for use in creating |
|||
transforms and such (as in ImageCms.buildTransformFromOpenProfiles()). |
|||
|
|||
If ``profileFilename`` is not a valid filename for an ICC profile, |
|||
a :exc:`PyCMSError` will be raised. |
|||
|
|||
:param profileFilename: String, as a valid filename path to the ICC profile |
|||
you wish to open, or a file-like object. |
|||
:returns: A CmsProfile class object. |
|||
:exception PyCMSError: |
|||
""" |
|||
|
|||
try: |
|||
return ImageCmsProfile(profileFilename) |
|||
except (OSError, TypeError, ValueError) as v: |
|||
raise PyCMSError(v) from v |
|||
|
|||
|
|||
def buildTransform( |
|||
inputProfile, |
|||
outputProfile, |
|||
inMode, |
|||
outMode, |
|||
renderingIntent=INTENT_PERCEPTUAL, |
|||
flags=0, |
|||
): |
|||
""" |
|||
(pyCMS) Builds an ICC transform mapping from the ``inputProfile`` to the |
|||
``outputProfile``. Use applyTransform to apply the transform to a given |
|||
image. |
|||
|
|||
If the input or output profiles specified are not valid filenames, a |
|||
:exc:`PyCMSError` will be raised. If an error occurs during creation |
|||
of the transform, a :exc:`PyCMSError` will be raised. |
|||
|
|||
If ``inMode`` or ``outMode`` are not a mode supported by the ``outputProfile`` |
|||
(or by pyCMS), a :exc:`PyCMSError` will be raised. |
|||
|
|||
This function builds and returns an ICC transform from the ``inputProfile`` |
|||
to the ``outputProfile`` using the ``renderingIntent`` to determine what to do |
|||
with out-of-gamut colors. It will ONLY work for converting images that |
|||
are in ``inMode`` to images that are in ``outMode`` color format (PIL mode, |
|||
i.e. "RGB", "RGBA", "CMYK", etc.). |
|||
|
|||
Building the transform is a fair part of the overhead in |
|||
ImageCms.profileToProfile(), so if you're planning on converting multiple |
|||
images using the same input/output settings, this can save you time. |
|||
Once you have a transform object, it can be used with |
|||
ImageCms.applyProfile() to convert images without the need to re-compute |
|||
the lookup table for the transform. |
|||
|
|||
The reason pyCMS returns a class object rather than a handle directly |
|||
to the transform is that it needs to keep track of the PIL input/output |
|||
modes that the transform is meant for. These attributes are stored in |
|||
the ``inMode`` and ``outMode`` attributes of the object (which can be |
|||
manually overridden if you really want to, but I don't know of any |
|||
time that would be of use, or would even work). |
|||
|
|||
:param inputProfile: String, as a valid filename path to the ICC input |
|||
profile you wish to use for this transform, or a profile object |
|||
:param outputProfile: String, as a valid filename path to the ICC output |
|||
profile you wish to use for this transform, or a profile object |
|||
:param inMode: String, as a valid PIL mode that the appropriate profile |
|||
also supports (i.e. "RGB", "RGBA", "CMYK", etc.) |
|||
:param outMode: String, as a valid PIL mode that the appropriate profile |
|||
also supports (i.e. "RGB", "RGBA", "CMYK", etc.) |
|||
:param renderingIntent: Integer (0-3) specifying the rendering intent you |
|||
wish to use for the transform |
|||
|
|||
ImageCms.INTENT_PERCEPTUAL = 0 (DEFAULT) |
|||
ImageCms.INTENT_RELATIVE_COLORIMETRIC = 1 |
|||
ImageCms.INTENT_SATURATION = 2 |
|||
ImageCms.INTENT_ABSOLUTE_COLORIMETRIC = 3 |
|||
|
|||
see the pyCMS documentation for details on rendering intents and what |
|||
they do. |
|||
:param flags: Integer (0-...) specifying additional flags |
|||
:returns: A CmsTransform class object. |
|||
:exception PyCMSError: |
|||
""" |
|||
|
|||
if not isinstance(renderingIntent, int) or not (0 <= renderingIntent <= 3): |
|||
raise PyCMSError("renderingIntent must be an integer between 0 and 3") |
|||
|
|||
if not isinstance(flags, int) or not (0 <= flags <= _MAX_FLAG): |
|||
raise PyCMSError("flags must be an integer between 0 and %s" + _MAX_FLAG) |
|||
|
|||
try: |
|||
if not isinstance(inputProfile, ImageCmsProfile): |
|||
inputProfile = ImageCmsProfile(inputProfile) |
|||
if not isinstance(outputProfile, ImageCmsProfile): |
|||
outputProfile = ImageCmsProfile(outputProfile) |
|||
return ImageCmsTransform( |
|||
inputProfile, outputProfile, inMode, outMode, renderingIntent, flags=flags |
|||
) |
|||
except (OSError, TypeError, ValueError) as v: |
|||
raise PyCMSError(v) from v |
|||
|
|||
|
|||
def buildProofTransform( |
|||
inputProfile, |
|||
outputProfile, |
|||
proofProfile, |
|||
inMode, |
|||
outMode, |
|||
renderingIntent=INTENT_PERCEPTUAL, |
|||
proofRenderingIntent=INTENT_ABSOLUTE_COLORIMETRIC, |
|||
flags=FLAGS["SOFTPROOFING"], |
|||
): |
|||
""" |
|||
(pyCMS) Builds an ICC transform mapping from the ``inputProfile`` to the |
|||
``outputProfile``, but tries to simulate the result that would be |
|||
obtained on the ``proofProfile`` device. |
|||
|
|||
If the input, output, or proof profiles specified are not valid |
|||
filenames, a :exc:`PyCMSError` will be raised. |
|||
|
|||
If an error occurs during creation of the transform, |
|||
a :exc:`PyCMSError` will be raised. |
|||
|
|||
If ``inMode`` or ``outMode`` are not a mode supported by the ``outputProfile`` |
|||
(or by pyCMS), a :exc:`PyCMSError` will be raised. |
|||
|
|||
This function builds and returns an ICC transform from the ``inputProfile`` |
|||
to the ``outputProfile``, but tries to simulate the result that would be |
|||
obtained on the ``proofProfile`` device using ``renderingIntent`` and |
|||
``proofRenderingIntent`` to determine what to do with out-of-gamut |
|||
colors. This is known as "soft-proofing". It will ONLY work for |
|||
converting images that are in ``inMode`` to images that are in outMode |
|||
color format (PIL mode, i.e. "RGB", "RGBA", "CMYK", etc.). |
|||
|
|||
Usage of the resulting transform object is exactly the same as with |
|||
ImageCms.buildTransform(). |
|||
|
|||
Proof profiling is generally used when using an output device to get a |
|||
good idea of what the final printed/displayed image would look like on |
|||
the ``proofProfile`` device when it's quicker and easier to use the |
|||
output device for judging color. Generally, this means that the |
|||
output device is a monitor, or a dye-sub printer (etc.), and the simulated |
|||
device is something more expensive, complicated, or time consuming |
|||
(making it difficult to make a real print for color judgement purposes). |
|||
|
|||
Soft-proofing basically functions by adjusting the colors on the |
|||
output device to match the colors of the device being simulated. However, |
|||
when the simulated device has a much wider gamut than the output |
|||
device, you may obtain marginal results. |
|||
|
|||
:param inputProfile: String, as a valid filename path to the ICC input |
|||
profile you wish to use for this transform, or a profile object |
|||
:param outputProfile: String, as a valid filename path to the ICC output |
|||
(monitor, usually) profile you wish to use for this transform, or a |
|||
profile object |
|||
:param proofProfile: String, as a valid filename path to the ICC proof |
|||
profile you wish to use for this transform, or a profile object |
|||
:param inMode: String, as a valid PIL mode that the appropriate profile |
|||
also supports (i.e. "RGB", "RGBA", "CMYK", etc.) |
|||
:param outMode: String, as a valid PIL mode that the appropriate profile |
|||
also supports (i.e. "RGB", "RGBA", "CMYK", etc.) |
|||
:param renderingIntent: Integer (0-3) specifying the rendering intent you |
|||
wish to use for the input->proof (simulated) transform |
|||
|
|||
ImageCms.INTENT_PERCEPTUAL = 0 (DEFAULT) |
|||
ImageCms.INTENT_RELATIVE_COLORIMETRIC = 1 |
|||
ImageCms.INTENT_SATURATION = 2 |
|||
ImageCms.INTENT_ABSOLUTE_COLORIMETRIC = 3 |
|||
|
|||
see the pyCMS documentation for details on rendering intents and what |
|||
they do. |
|||
:param proofRenderingIntent: Integer (0-3) specifying the rendering intent |
|||
you wish to use for proof->output transform |
|||
|
|||
ImageCms.INTENT_PERCEPTUAL = 0 (DEFAULT) |
|||
ImageCms.INTENT_RELATIVE_COLORIMETRIC = 1 |
|||
ImageCms.INTENT_SATURATION = 2 |
|||
ImageCms.INTENT_ABSOLUTE_COLORIMETRIC = 3 |
|||
|
|||
see the pyCMS documentation for details on rendering intents and what |
|||
they do. |
|||
:param flags: Integer (0-...) specifying additional flags |
|||
:returns: A CmsTransform class object. |
|||
:exception PyCMSError: |
|||
""" |
|||
|
|||
if not isinstance(renderingIntent, int) or not (0 <= renderingIntent <= 3): |
|||
raise PyCMSError("renderingIntent must be an integer between 0 and 3") |
|||
|
|||
if not isinstance(flags, int) or not (0 <= flags <= _MAX_FLAG): |
|||
raise PyCMSError("flags must be an integer between 0 and %s" + _MAX_FLAG) |
|||
|
|||
try: |
|||
if not isinstance(inputProfile, ImageCmsProfile): |
|||
inputProfile = ImageCmsProfile(inputProfile) |
|||
if not isinstance(outputProfile, ImageCmsProfile): |
|||
outputProfile = ImageCmsProfile(outputProfile) |
|||
if not isinstance(proofProfile, ImageCmsProfile): |
|||
proofProfile = ImageCmsProfile(proofProfile) |
|||
return ImageCmsTransform( |
|||
inputProfile, |
|||
outputProfile, |
|||
inMode, |
|||
outMode, |
|||
renderingIntent, |
|||
proofProfile, |
|||
proofRenderingIntent, |
|||
flags, |
|||
) |
|||
except (OSError, TypeError, ValueError) as v: |
|||
raise PyCMSError(v) from v |
|||
|
|||
|
|||
buildTransformFromOpenProfiles = buildTransform |
|||
buildProofTransformFromOpenProfiles = buildProofTransform |
|||
|
|||
|
|||
def applyTransform(im, transform, inPlace=False): |
|||
""" |
|||
(pyCMS) Applies a transform to a given image. |
|||
|
|||
If ``im.mode != transform.inMode``, a :exc:`PyCMSError` is raised. |
|||
|
|||
If ``inPlace`` is ``True`` and ``transform.inMode != transform.outMode``, a |
|||
:exc:`PyCMSError` is raised. |
|||
|
|||
If ``im.mode``, ``transform.inMode`` or ``transform.outMode`` is not |
|||
supported by pyCMSdll or the profiles you used for the transform, a |
|||
:exc:`PyCMSError` is raised. |
|||
|
|||
If an error occurs while the transform is being applied, |
|||
a :exc:`PyCMSError` is raised. |
|||
|
|||
This function applies a pre-calculated transform (from |
|||
ImageCms.buildTransform() or ImageCms.buildTransformFromOpenProfiles()) |
|||
to an image. The transform can be used for multiple images, saving |
|||
considerable calculation time if doing the same conversion multiple times. |
|||
|
|||
If you want to modify im in-place instead of receiving a new image as |
|||
the return value, set ``inPlace`` to ``True``. This can only be done if |
|||
``transform.inMode`` and ``transform.outMode`` are the same, because we can't |
|||
change the mode in-place (the buffer sizes for some modes are |
|||
different). The default behavior is to return a new :py:class:`~PIL.Image.Image` |
|||
object of the same dimensions in mode ``transform.outMode``. |
|||
|
|||
:param im: An :py:class:`~PIL.Image.Image` object, and im.mode must be the same |
|||
as the ``inMode`` supported by the transform. |
|||
:param transform: A valid CmsTransform class object |
|||
:param inPlace: Bool. If ``True``, ``im`` is modified in place and ``None`` is |
|||
returned, if ``False``, a new :py:class:`~PIL.Image.Image` object with the |
|||
transform applied is returned (and ``im`` is not changed). The default is |
|||
``False``. |
|||
:returns: Either ``None``, or a new :py:class:`~PIL.Image.Image` object, |
|||
depending on the value of ``inPlace``. The profile will be returned in |
|||
the image's ``info['icc_profile']``. |
|||
:exception PyCMSError: |
|||
""" |
|||
|
|||
try: |
|||
if inPlace: |
|||
transform.apply_in_place(im) |
|||
imOut = None |
|||
else: |
|||
imOut = transform.apply(im) |
|||
except (TypeError, ValueError) as v: |
|||
raise PyCMSError(v) from v |
|||
|
|||
return imOut |
|||
|
|||
|
|||
def createProfile(colorSpace, colorTemp=-1): |
|||
""" |
|||
(pyCMS) Creates a profile. |
|||
|
|||
If colorSpace not in ``["LAB", "XYZ", "sRGB"]``, |
|||
a :exc:`PyCMSError` is raised. |
|||
|
|||
If using LAB and ``colorTemp`` is not a positive integer, |
|||
a :exc:`PyCMSError` is raised. |
|||
|
|||
If an error occurs while creating the profile, |
|||
a :exc:`PyCMSError` is raised. |
|||
|
|||
Use this function to create common profiles on-the-fly instead of |
|||
having to supply a profile on disk and knowing the path to it. It |
|||
returns a normal CmsProfile object that can be passed to |
|||
ImageCms.buildTransformFromOpenProfiles() to create a transform to apply |
|||
to images. |
|||
|
|||
:param colorSpace: String, the color space of the profile you wish to |
|||
create. |
|||
Currently only "LAB", "XYZ", and "sRGB" are supported. |
|||
:param colorTemp: Positive integer for the white point for the profile, in |
|||
degrees Kelvin (i.e. 5000, 6500, 9600, etc.). The default is for D50 |
|||
illuminant if omitted (5000k). colorTemp is ONLY applied to LAB |
|||
profiles, and is ignored for XYZ and sRGB. |
|||
:returns: A CmsProfile class object |
|||
:exception PyCMSError: |
|||
""" |
|||
|
|||
if colorSpace not in ["LAB", "XYZ", "sRGB"]: |
|||
raise PyCMSError( |
|||
f"Color space not supported for on-the-fly profile creation ({colorSpace})" |
|||
) |
|||
|
|||
if colorSpace == "LAB": |
|||
try: |
|||
colorTemp = float(colorTemp) |
|||
except (TypeError, ValueError) as e: |
|||
raise PyCMSError( |
|||
f'Color temperature must be numeric, "{colorTemp}" not valid' |
|||
) from e |
|||
|
|||
try: |
|||
return core.createProfile(colorSpace, colorTemp) |
|||
except (TypeError, ValueError) as v: |
|||
raise PyCMSError(v) from v |
|||
|
|||
|
|||
def getProfileName(profile): |
|||
""" |
|||
|
|||
(pyCMS) Gets the internal product name for the given profile. |
|||
|
|||
If ``profile`` isn't a valid CmsProfile object or filename to a profile, |
|||
a :exc:`PyCMSError` is raised If an error occurs while trying |
|||
to obtain the name tag, a :exc:`PyCMSError` is raised. |
|||
|
|||
Use this function to obtain the INTERNAL name of the profile (stored |
|||
in an ICC tag in the profile itself), usually the one used when the |
|||
profile was originally created. Sometimes this tag also contains |
|||
additional information supplied by the creator. |
|||
|
|||
:param profile: EITHER a valid CmsProfile object, OR a string of the |
|||
filename of an ICC profile. |
|||
:returns: A string containing the internal name of the profile as stored |
|||
in an ICC tag. |
|||
:exception PyCMSError: |
|||
""" |
|||
|
|||
try: |
|||
# add an extra newline to preserve pyCMS compatibility |
|||
if not isinstance(profile, ImageCmsProfile): |
|||
profile = ImageCmsProfile(profile) |
|||
# do it in python, not c. |
|||
# // name was "%s - %s" (model, manufacturer) || Description , |
|||
# // but if the Model and Manufacturer were the same or the model |
|||
# // was long, Just the model, in 1.x |
|||
model = profile.profile.model |
|||
manufacturer = profile.profile.manufacturer |
|||
|
|||
if not (model or manufacturer): |
|||
return (profile.profile.profile_description or "") + "\n" |
|||
if not manufacturer or len(model) > 30: |
|||
return model + "\n" |
|||
return f"{model} - {manufacturer}\n" |
|||
|
|||
except (AttributeError, OSError, TypeError, ValueError) as v: |
|||
raise PyCMSError(v) from v |
|||
|
|||
|
|||
def getProfileInfo(profile): |
|||
""" |
|||
(pyCMS) Gets the internal product information for the given profile. |
|||
|
|||
If ``profile`` isn't a valid CmsProfile object or filename to a profile, |
|||
a :exc:`PyCMSError` is raised. |
|||
|
|||
If an error occurs while trying to obtain the info tag, |
|||
a :exc:`PyCMSError` is raised. |
|||
|
|||
Use this function to obtain the information stored in the profile's |
|||
info tag. This often contains details about the profile, and how it |
|||
was created, as supplied by the creator. |
|||
|
|||
:param profile: EITHER a valid CmsProfile object, OR a string of the |
|||
filename of an ICC profile. |
|||
:returns: A string containing the internal profile information stored in |
|||
an ICC tag. |
|||
:exception PyCMSError: |
|||
""" |
|||
|
|||
try: |
|||
if not isinstance(profile, ImageCmsProfile): |
|||
profile = ImageCmsProfile(profile) |
|||
# add an extra newline to preserve pyCMS compatibility |
|||
# Python, not C. the white point bits weren't working well, |
|||
# so skipping. |
|||
# info was description \r\n\r\n copyright \r\n\r\n K007 tag \r\n\r\n whitepoint |
|||
description = profile.profile.profile_description |
|||
cpright = profile.profile.copyright |
|||
arr = [] |
|||
for elt in (description, cpright): |
|||
if elt: |
|||
arr.append(elt) |
|||
return "\r\n\r\n".join(arr) + "\r\n\r\n" |
|||
|
|||
except (AttributeError, OSError, TypeError, ValueError) as v: |
|||
raise PyCMSError(v) from v |
|||
|
|||
|
|||
def getProfileCopyright(profile): |
|||
""" |
|||
(pyCMS) Gets the copyright for the given profile. |
|||
|
|||
If ``profile`` isn't a valid CmsProfile object or filename to a profile, a |
|||
:exc:`PyCMSError` is raised. |
|||
|
|||
If an error occurs while trying to obtain the copyright tag, |
|||
a :exc:`PyCMSError` is raised. |
|||
|
|||
Use this function to obtain the information stored in the profile's |
|||
copyright tag. |
|||
|
|||
:param profile: EITHER a valid CmsProfile object, OR a string of the |
|||
filename of an ICC profile. |
|||
:returns: A string containing the internal profile information stored in |
|||
an ICC tag. |
|||
:exception PyCMSError: |
|||
""" |
|||
try: |
|||
# add an extra newline to preserve pyCMS compatibility |
|||
if not isinstance(profile, ImageCmsProfile): |
|||
profile = ImageCmsProfile(profile) |
|||
return (profile.profile.copyright or "") + "\n" |
|||
except (AttributeError, OSError, TypeError, ValueError) as v: |
|||
raise PyCMSError(v) from v |
|||
|
|||
|
|||
def getProfileManufacturer(profile): |
|||
""" |
|||
(pyCMS) Gets the manufacturer for the given profile. |
|||
|
|||
If ``profile`` isn't a valid CmsProfile object or filename to a profile, a |
|||
:exc:`PyCMSError` is raised. |
|||
|
|||
If an error occurs while trying to obtain the manufacturer tag, a |
|||
:exc:`PyCMSError` is raised. |
|||
|
|||
Use this function to obtain the information stored in the profile's |
|||
manufacturer tag. |
|||
|
|||
:param profile: EITHER a valid CmsProfile object, OR a string of the |
|||
filename of an ICC profile. |
|||
:returns: A string containing the internal profile information stored in |
|||
an ICC tag. |
|||
:exception PyCMSError: |
|||
""" |
|||
try: |
|||
# add an extra newline to preserve pyCMS compatibility |
|||
if not isinstance(profile, ImageCmsProfile): |
|||
profile = ImageCmsProfile(profile) |
|||
return (profile.profile.manufacturer or "") + "\n" |
|||
except (AttributeError, OSError, TypeError, ValueError) as v: |
|||
raise PyCMSError(v) from v |
|||
|
|||
|
|||
def getProfileModel(profile): |
|||
""" |
|||
(pyCMS) Gets the model for the given profile. |
|||
|
|||
If ``profile`` isn't a valid CmsProfile object or filename to a profile, a |
|||
:exc:`PyCMSError` is raised. |
|||
|
|||
If an error occurs while trying to obtain the model tag, |
|||
a :exc:`PyCMSError` is raised. |
|||
|
|||
Use this function to obtain the information stored in the profile's |
|||
model tag. |
|||
|
|||
:param profile: EITHER a valid CmsProfile object, OR a string of the |
|||
filename of an ICC profile. |
|||
:returns: A string containing the internal profile information stored in |
|||
an ICC tag. |
|||
:exception PyCMSError: |
|||
""" |
|||
|
|||
try: |
|||
# add an extra newline to preserve pyCMS compatibility |
|||
if not isinstance(profile, ImageCmsProfile): |
|||
profile = ImageCmsProfile(profile) |
|||
return (profile.profile.model or "") + "\n" |
|||
except (AttributeError, OSError, TypeError, ValueError) as v: |
|||
raise PyCMSError(v) from v |
|||
|
|||
|
|||
def getProfileDescription(profile): |
|||
""" |
|||
(pyCMS) Gets the description for the given profile. |
|||
|
|||
If ``profile`` isn't a valid CmsProfile object or filename to a profile, a |
|||
:exc:`PyCMSError` is raised. |
|||
|
|||
If an error occurs while trying to obtain the description tag, |
|||
a :exc:`PyCMSError` is raised. |
|||
|
|||
Use this function to obtain the information stored in the profile's |
|||
description tag. |
|||
|
|||
:param profile: EITHER a valid CmsProfile object, OR a string of the |
|||
filename of an ICC profile. |
|||
:returns: A string containing the internal profile information stored in an |
|||
ICC tag. |
|||
:exception PyCMSError: |
|||
""" |
|||
|
|||
try: |
|||
# add an extra newline to preserve pyCMS compatibility |
|||
if not isinstance(profile, ImageCmsProfile): |
|||
profile = ImageCmsProfile(profile) |
|||
return (profile.profile.profile_description or "") + "\n" |
|||
except (AttributeError, OSError, TypeError, ValueError) as v: |
|||
raise PyCMSError(v) from v |
|||
|
|||
|
|||
def getDefaultIntent(profile): |
|||
""" |
|||
(pyCMS) Gets the default intent name for the given profile. |
|||
|
|||
If ``profile`` isn't a valid CmsProfile object or filename to a profile, a |
|||
:exc:`PyCMSError` is raised. |
|||
|
|||
If an error occurs while trying to obtain the default intent, a |
|||
:exc:`PyCMSError` is raised. |
|||
|
|||
Use this function to determine the default (and usually best optimized) |
|||
rendering intent for this profile. Most profiles support multiple |
|||
rendering intents, but are intended mostly for one type of conversion. |
|||
If you wish to use a different intent than returned, use |
|||
ImageCms.isIntentSupported() to verify it will work first. |
|||
|
|||
:param profile: EITHER a valid CmsProfile object, OR a string of the |
|||
filename of an ICC profile. |
|||
:returns: Integer 0-3 specifying the default rendering intent for this |
|||
profile. |
|||
|
|||
ImageCms.INTENT_PERCEPTUAL = 0 (DEFAULT) |
|||
ImageCms.INTENT_RELATIVE_COLORIMETRIC = 1 |
|||
ImageCms.INTENT_SATURATION = 2 |
|||
ImageCms.INTENT_ABSOLUTE_COLORIMETRIC = 3 |
|||
|
|||
see the pyCMS documentation for details on rendering intents and what |
|||
they do. |
|||
:exception PyCMSError: |
|||
""" |
|||
|
|||
try: |
|||
if not isinstance(profile, ImageCmsProfile): |
|||
profile = ImageCmsProfile(profile) |
|||
return profile.profile.rendering_intent |
|||
except (AttributeError, OSError, TypeError, ValueError) as v: |
|||
raise PyCMSError(v) from v |
|||
|
|||
|
|||
def isIntentSupported(profile, intent, direction): |
|||
""" |
|||
(pyCMS) Checks if a given intent is supported. |
|||
|
|||
Use this function to verify that you can use your desired |
|||
``intent`` with ``profile``, and that ``profile`` can be used for the |
|||
input/output/proof profile as you desire. |
|||
|
|||
Some profiles are created specifically for one "direction", can cannot |
|||
be used for others. Some profiles can only be used for certain |
|||
rendering intents, so it's best to either verify this before trying |
|||
to create a transform with them (using this function), or catch the |
|||
potential :exc:`PyCMSError` that will occur if they don't |
|||
support the modes you select. |
|||
|
|||
:param profile: EITHER a valid CmsProfile object, OR a string of the |
|||
filename of an ICC profile. |
|||
:param intent: Integer (0-3) specifying the rendering intent you wish to |
|||
use with this profile |
|||
|
|||
ImageCms.INTENT_PERCEPTUAL = 0 (DEFAULT) |
|||
ImageCms.INTENT_RELATIVE_COLORIMETRIC = 1 |
|||
ImageCms.INTENT_SATURATION = 2 |
|||
ImageCms.INTENT_ABSOLUTE_COLORIMETRIC = 3 |
|||
|
|||
see the pyCMS documentation for details on rendering intents and what |
|||
they do. |
|||
:param direction: Integer specifying if the profile is to be used for |
|||
input, output, or proof |
|||
|
|||
INPUT = 0 (or use ImageCms.DIRECTION_INPUT) |
|||
OUTPUT = 1 (or use ImageCms.DIRECTION_OUTPUT) |
|||
PROOF = 2 (or use ImageCms.DIRECTION_PROOF) |
|||
|
|||
:returns: 1 if the intent/direction are supported, -1 if they are not. |
|||
:exception PyCMSError: |
|||
""" |
|||
|
|||
try: |
|||
if not isinstance(profile, ImageCmsProfile): |
|||
profile = ImageCmsProfile(profile) |
|||
# FIXME: I get different results for the same data w. different |
|||
# compilers. Bug in LittleCMS or in the binding? |
|||
if profile.profile.is_intent_supported(intent, direction): |
|||
return 1 |
|||
else: |
|||
return -1 |
|||
except (AttributeError, OSError, TypeError, ValueError) as v: |
|||
raise PyCMSError(v) from v |
|||
|
|||
|
|||
def versions(): |
|||
""" |
|||
(pyCMS) Fetches versions. |
|||
""" |
|||
|
|||
return (VERSION, core.littlecms_version, sys.version.split()[0], Image.__version__) |
@ -0,0 +1,300 @@ |
|||
# |
|||
# The Python Imaging Library |
|||
# $Id$ |
|||
# |
|||
# map CSS3-style colour description strings to RGB |
|||
# |
|||
# History: |
|||
# 2002-10-24 fl Added support for CSS-style color strings |
|||
# 2002-12-15 fl Added RGBA support |
|||
# 2004-03-27 fl Fixed remaining int() problems for Python 1.5.2 |
|||
# 2004-07-19 fl Fixed gray/grey spelling issues |
|||
# 2009-03-05 fl Fixed rounding error in grayscale calculation |
|||
# |
|||
# Copyright (c) 2002-2004 by Secret Labs AB |
|||
# Copyright (c) 2002-2004 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
import re |
|||
|
|||
from . import Image |
|||
|
|||
|
|||
def getrgb(color): |
|||
""" |
|||
Convert a color string to an RGB tuple. If the string cannot be parsed, |
|||
this function raises a :py:exc:`ValueError` exception. |
|||
|
|||
.. versionadded:: 1.1.4 |
|||
|
|||
:param color: A color string |
|||
:return: ``(red, green, blue[, alpha])`` |
|||
""" |
|||
color = color.lower() |
|||
|
|||
rgb = colormap.get(color, None) |
|||
if rgb: |
|||
if isinstance(rgb, tuple): |
|||
return rgb |
|||
colormap[color] = rgb = getrgb(rgb) |
|||
return rgb |
|||
|
|||
# check for known string formats |
|||
if re.match("#[a-f0-9]{3}$", color): |
|||
return (int(color[1] * 2, 16), int(color[2] * 2, 16), int(color[3] * 2, 16)) |
|||
|
|||
if re.match("#[a-f0-9]{4}$", color): |
|||
return ( |
|||
int(color[1] * 2, 16), |
|||
int(color[2] * 2, 16), |
|||
int(color[3] * 2, 16), |
|||
int(color[4] * 2, 16), |
|||
) |
|||
|
|||
if re.match("#[a-f0-9]{6}$", color): |
|||
return (int(color[1:3], 16), int(color[3:5], 16), int(color[5:7], 16)) |
|||
|
|||
if re.match("#[a-f0-9]{8}$", color): |
|||
return ( |
|||
int(color[1:3], 16), |
|||
int(color[3:5], 16), |
|||
int(color[5:7], 16), |
|||
int(color[7:9], 16), |
|||
) |
|||
|
|||
m = re.match(r"rgb\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)$", color) |
|||
if m: |
|||
return (int(m.group(1)), int(m.group(2)), int(m.group(3))) |
|||
|
|||
m = re.match(r"rgb\(\s*(\d+)%\s*,\s*(\d+)%\s*,\s*(\d+)%\s*\)$", color) |
|||
if m: |
|||
return ( |
|||
int((int(m.group(1)) * 255) / 100.0 + 0.5), |
|||
int((int(m.group(2)) * 255) / 100.0 + 0.5), |
|||
int((int(m.group(3)) * 255) / 100.0 + 0.5), |
|||
) |
|||
|
|||
m = re.match( |
|||
r"hsl\(\s*(\d+\.?\d*)\s*,\s*(\d+\.?\d*)%\s*,\s*(\d+\.?\d*)%\s*\)$", color |
|||
) |
|||
if m: |
|||
from colorsys import hls_to_rgb |
|||
|
|||
rgb = hls_to_rgb( |
|||
float(m.group(1)) / 360.0, |
|||
float(m.group(3)) / 100.0, |
|||
float(m.group(2)) / 100.0, |
|||
) |
|||
return ( |
|||
int(rgb[0] * 255 + 0.5), |
|||
int(rgb[1] * 255 + 0.5), |
|||
int(rgb[2] * 255 + 0.5), |
|||
) |
|||
|
|||
m = re.match( |
|||
r"hs[bv]\(\s*(\d+\.?\d*)\s*,\s*(\d+\.?\d*)%\s*,\s*(\d+\.?\d*)%\s*\)$", color |
|||
) |
|||
if m: |
|||
from colorsys import hsv_to_rgb |
|||
|
|||
rgb = hsv_to_rgb( |
|||
float(m.group(1)) / 360.0, |
|||
float(m.group(2)) / 100.0, |
|||
float(m.group(3)) / 100.0, |
|||
) |
|||
return ( |
|||
int(rgb[0] * 255 + 0.5), |
|||
int(rgb[1] * 255 + 0.5), |
|||
int(rgb[2] * 255 + 0.5), |
|||
) |
|||
|
|||
m = re.match(r"rgba\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)$", color) |
|||
if m: |
|||
return (int(m.group(1)), int(m.group(2)), int(m.group(3)), int(m.group(4))) |
|||
raise ValueError(f"unknown color specifier: {repr(color)}") |
|||
|
|||
|
|||
def getcolor(color, mode): |
|||
""" |
|||
Same as :py:func:`~PIL.ImageColor.getrgb`, but converts the RGB value to a |
|||
greyscale value if the mode is not color or a palette image. If the string |
|||
cannot be parsed, this function raises a :py:exc:`ValueError` exception. |
|||
|
|||
.. versionadded:: 1.1.4 |
|||
|
|||
:param color: A color string |
|||
:return: ``(graylevel [, alpha]) or (red, green, blue[, alpha])`` |
|||
""" |
|||
# same as getrgb, but converts the result to the given mode |
|||
color, alpha = getrgb(color), 255 |
|||
if len(color) == 4: |
|||
color, alpha = color[0:3], color[3] |
|||
|
|||
if Image.getmodebase(mode) == "L": |
|||
r, g, b = color |
|||
# ITU-R Recommendation 601-2 for nonlinear RGB |
|||
# scaled to 24 bits to match the convert's implementation. |
|||
color = (r * 19595 + g * 38470 + b * 7471 + 0x8000) >> 16 |
|||
if mode[-1] == "A": |
|||
return (color, alpha) |
|||
else: |
|||
if mode[-1] == "A": |
|||
return color + (alpha,) |
|||
return color |
|||
|
|||
|
|||
colormap = { |
|||
# X11 colour table from https://drafts.csswg.org/css-color-4/, with |
|||
# gray/grey spelling issues fixed. This is a superset of HTML 4.0 |
|||
# colour names used in CSS 1. |
|||
"aliceblue": "#f0f8ff", |
|||
"antiquewhite": "#faebd7", |
|||
"aqua": "#00ffff", |
|||
"aquamarine": "#7fffd4", |
|||
"azure": "#f0ffff", |
|||
"beige": "#f5f5dc", |
|||
"bisque": "#ffe4c4", |
|||
"black": "#000000", |
|||
"blanchedalmond": "#ffebcd", |
|||
"blue": "#0000ff", |
|||
"blueviolet": "#8a2be2", |
|||
"brown": "#a52a2a", |
|||
"burlywood": "#deb887", |
|||
"cadetblue": "#5f9ea0", |
|||
"chartreuse": "#7fff00", |
|||
"chocolate": "#d2691e", |
|||
"coral": "#ff7f50", |
|||
"cornflowerblue": "#6495ed", |
|||
"cornsilk": "#fff8dc", |
|||
"crimson": "#dc143c", |
|||
"cyan": "#00ffff", |
|||
"darkblue": "#00008b", |
|||
"darkcyan": "#008b8b", |
|||
"darkgoldenrod": "#b8860b", |
|||
"darkgray": "#a9a9a9", |
|||
"darkgrey": "#a9a9a9", |
|||
"darkgreen": "#006400", |
|||
"darkkhaki": "#bdb76b", |
|||
"darkmagenta": "#8b008b", |
|||
"darkolivegreen": "#556b2f", |
|||
"darkorange": "#ff8c00", |
|||
"darkorchid": "#9932cc", |
|||
"darkred": "#8b0000", |
|||
"darksalmon": "#e9967a", |
|||
"darkseagreen": "#8fbc8f", |
|||
"darkslateblue": "#483d8b", |
|||
"darkslategray": "#2f4f4f", |
|||
"darkslategrey": "#2f4f4f", |
|||
"darkturquoise": "#00ced1", |
|||
"darkviolet": "#9400d3", |
|||
"deeppink": "#ff1493", |
|||
"deepskyblue": "#00bfff", |
|||
"dimgray": "#696969", |
|||
"dimgrey": "#696969", |
|||
"dodgerblue": "#1e90ff", |
|||
"firebrick": "#b22222", |
|||
"floralwhite": "#fffaf0", |
|||
"forestgreen": "#228b22", |
|||
"fuchsia": "#ff00ff", |
|||
"gainsboro": "#dcdcdc", |
|||
"ghostwhite": "#f8f8ff", |
|||
"gold": "#ffd700", |
|||
"goldenrod": "#daa520", |
|||
"gray": "#808080", |
|||
"grey": "#808080", |
|||
"green": "#008000", |
|||
"greenyellow": "#adff2f", |
|||
"honeydew": "#f0fff0", |
|||
"hotpink": "#ff69b4", |
|||
"indianred": "#cd5c5c", |
|||
"indigo": "#4b0082", |
|||
"ivory": "#fffff0", |
|||
"khaki": "#f0e68c", |
|||
"lavender": "#e6e6fa", |
|||
"lavenderblush": "#fff0f5", |
|||
"lawngreen": "#7cfc00", |
|||
"lemonchiffon": "#fffacd", |
|||
"lightblue": "#add8e6", |
|||
"lightcoral": "#f08080", |
|||
"lightcyan": "#e0ffff", |
|||
"lightgoldenrodyellow": "#fafad2", |
|||
"lightgreen": "#90ee90", |
|||
"lightgray": "#d3d3d3", |
|||
"lightgrey": "#d3d3d3", |
|||
"lightpink": "#ffb6c1", |
|||
"lightsalmon": "#ffa07a", |
|||
"lightseagreen": "#20b2aa", |
|||
"lightskyblue": "#87cefa", |
|||
"lightslategray": "#778899", |
|||
"lightslategrey": "#778899", |
|||
"lightsteelblue": "#b0c4de", |
|||
"lightyellow": "#ffffe0", |
|||
"lime": "#00ff00", |
|||
"limegreen": "#32cd32", |
|||
"linen": "#faf0e6", |
|||
"magenta": "#ff00ff", |
|||
"maroon": "#800000", |
|||
"mediumaquamarine": "#66cdaa", |
|||
"mediumblue": "#0000cd", |
|||
"mediumorchid": "#ba55d3", |
|||
"mediumpurple": "#9370db", |
|||
"mediumseagreen": "#3cb371", |
|||
"mediumslateblue": "#7b68ee", |
|||
"mediumspringgreen": "#00fa9a", |
|||
"mediumturquoise": "#48d1cc", |
|||
"mediumvioletred": "#c71585", |
|||
"midnightblue": "#191970", |
|||
"mintcream": "#f5fffa", |
|||
"mistyrose": "#ffe4e1", |
|||
"moccasin": "#ffe4b5", |
|||
"navajowhite": "#ffdead", |
|||
"navy": "#000080", |
|||
"oldlace": "#fdf5e6", |
|||
"olive": "#808000", |
|||
"olivedrab": "#6b8e23", |
|||
"orange": "#ffa500", |
|||
"orangered": "#ff4500", |
|||
"orchid": "#da70d6", |
|||
"palegoldenrod": "#eee8aa", |
|||
"palegreen": "#98fb98", |
|||
"paleturquoise": "#afeeee", |
|||
"palevioletred": "#db7093", |
|||
"papayawhip": "#ffefd5", |
|||
"peachpuff": "#ffdab9", |
|||
"peru": "#cd853f", |
|||
"pink": "#ffc0cb", |
|||
"plum": "#dda0dd", |
|||
"powderblue": "#b0e0e6", |
|||
"purple": "#800080", |
|||
"rebeccapurple": "#663399", |
|||
"red": "#ff0000", |
|||
"rosybrown": "#bc8f8f", |
|||
"royalblue": "#4169e1", |
|||
"saddlebrown": "#8b4513", |
|||
"salmon": "#fa8072", |
|||
"sandybrown": "#f4a460", |
|||
"seagreen": "#2e8b57", |
|||
"seashell": "#fff5ee", |
|||
"sienna": "#a0522d", |
|||
"silver": "#c0c0c0", |
|||
"skyblue": "#87ceeb", |
|||
"slateblue": "#6a5acd", |
|||
"slategray": "#708090", |
|||
"slategrey": "#708090", |
|||
"snow": "#fffafa", |
|||
"springgreen": "#00ff7f", |
|||
"steelblue": "#4682b4", |
|||
"tan": "#d2b48c", |
|||
"teal": "#008080", |
|||
"thistle": "#d8bfd8", |
|||
"tomato": "#ff6347", |
|||
"turquoise": "#40e0d0", |
|||
"violet": "#ee82ee", |
|||
"wheat": "#f5deb3", |
|||
"white": "#ffffff", |
|||
"whitesmoke": "#f5f5f5", |
|||
"yellow": "#ffff00", |
|||
"yellowgreen": "#9acd32", |
|||
} |
@ -0,0 +1,898 @@ |
|||
# |
|||
# The Python Imaging Library |
|||
# $Id$ |
|||
# |
|||
# drawing interface operations |
|||
# |
|||
# History: |
|||
# 1996-04-13 fl Created (experimental) |
|||
# 1996-08-07 fl Filled polygons, ellipses. |
|||
# 1996-08-13 fl Added text support |
|||
# 1998-06-28 fl Handle I and F images |
|||
# 1998-12-29 fl Added arc; use arc primitive to draw ellipses |
|||
# 1999-01-10 fl Added shape stuff (experimental) |
|||
# 1999-02-06 fl Added bitmap support |
|||
# 1999-02-11 fl Changed all primitives to take options |
|||
# 1999-02-20 fl Fixed backwards compatibility |
|||
# 2000-10-12 fl Copy on write, when necessary |
|||
# 2001-02-18 fl Use default ink for bitmap/text also in fill mode |
|||
# 2002-10-24 fl Added support for CSS-style color strings |
|||
# 2002-12-10 fl Added experimental support for RGBA-on-RGB drawing |
|||
# 2002-12-11 fl Refactored low-level drawing API (work in progress) |
|||
# 2004-08-26 fl Made Draw() a factory function, added getdraw() support |
|||
# 2004-09-04 fl Added width support to line primitive |
|||
# 2004-09-10 fl Added font mode handling |
|||
# 2006-06-19 fl Added font bearing support (getmask2) |
|||
# |
|||
# Copyright (c) 1997-2006 by Secret Labs AB |
|||
# Copyright (c) 1996-2006 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
import math |
|||
import numbers |
|||
|
|||
from . import Image, ImageColor |
|||
|
|||
""" |
|||
A simple 2D drawing interface for PIL images. |
|||
<p> |
|||
Application code should use the <b>Draw</b> factory, instead of |
|||
directly. |
|||
""" |
|||
|
|||
|
|||
class ImageDraw: |
|||
def __init__(self, im, mode=None): |
|||
""" |
|||
Create a drawing instance. |
|||
|
|||
:param im: The image to draw in. |
|||
:param mode: Optional mode to use for color values. For RGB |
|||
images, this argument can be RGB or RGBA (to blend the |
|||
drawing into the image). For all other modes, this argument |
|||
must be the same as the image mode. If omitted, the mode |
|||
defaults to the mode of the image. |
|||
""" |
|||
im.load() |
|||
if im.readonly: |
|||
im._copy() # make it writeable |
|||
blend = 0 |
|||
if mode is None: |
|||
mode = im.mode |
|||
if mode != im.mode: |
|||
if mode == "RGBA" and im.mode == "RGB": |
|||
blend = 1 |
|||
else: |
|||
raise ValueError("mode mismatch") |
|||
if mode == "P": |
|||
self.palette = im.palette |
|||
else: |
|||
self.palette = None |
|||
self.im = im.im |
|||
self.draw = Image.core.draw(self.im, blend) |
|||
self.mode = mode |
|||
if mode in ("I", "F"): |
|||
self.ink = self.draw.draw_ink(1) |
|||
else: |
|||
self.ink = self.draw.draw_ink(-1) |
|||
if mode in ("1", "P", "I", "F"): |
|||
# FIXME: fix Fill2 to properly support matte for I+F images |
|||
self.fontmode = "1" |
|||
else: |
|||
self.fontmode = "L" # aliasing is okay for other modes |
|||
self.fill = 0 |
|||
self.font = None |
|||
|
|||
def getfont(self): |
|||
""" |
|||
Get the current default font. |
|||
|
|||
:returns: An image font.""" |
|||
if not self.font: |
|||
# FIXME: should add a font repository |
|||
from . import ImageFont |
|||
|
|||
self.font = ImageFont.load_default() |
|||
return self.font |
|||
|
|||
def _getink(self, ink, fill=None): |
|||
if ink is None and fill is None: |
|||
if self.fill: |
|||
fill = self.ink |
|||
else: |
|||
ink = self.ink |
|||
else: |
|||
if ink is not None: |
|||
if isinstance(ink, str): |
|||
ink = ImageColor.getcolor(ink, self.mode) |
|||
if self.palette and not isinstance(ink, numbers.Number): |
|||
ink = self.palette.getcolor(ink) |
|||
ink = self.draw.draw_ink(ink) |
|||
if fill is not None: |
|||
if isinstance(fill, str): |
|||
fill = ImageColor.getcolor(fill, self.mode) |
|||
if self.palette and not isinstance(fill, numbers.Number): |
|||
fill = self.palette.getcolor(fill) |
|||
fill = self.draw.draw_ink(fill) |
|||
return ink, fill |
|||
|
|||
def arc(self, xy, start, end, fill=None, width=1): |
|||
"""Draw an arc.""" |
|||
ink, fill = self._getink(fill) |
|||
if ink is not None: |
|||
self.draw.draw_arc(xy, start, end, ink, width) |
|||
|
|||
def bitmap(self, xy, bitmap, fill=None): |
|||
"""Draw a bitmap.""" |
|||
bitmap.load() |
|||
ink, fill = self._getink(fill) |
|||
if ink is None: |
|||
ink = fill |
|||
if ink is not None: |
|||
self.draw.draw_bitmap(xy, bitmap.im, ink) |
|||
|
|||
def chord(self, xy, start, end, fill=None, outline=None, width=1): |
|||
"""Draw a chord.""" |
|||
ink, fill = self._getink(outline, fill) |
|||
if fill is not None: |
|||
self.draw.draw_chord(xy, start, end, fill, 1) |
|||
if ink is not None and ink != fill and width != 0: |
|||
self.draw.draw_chord(xy, start, end, ink, 0, width) |
|||
|
|||
def ellipse(self, xy, fill=None, outline=None, width=1): |
|||
"""Draw an ellipse.""" |
|||
ink, fill = self._getink(outline, fill) |
|||
if fill is not None: |
|||
self.draw.draw_ellipse(xy, fill, 1) |
|||
if ink is not None and ink != fill and width != 0: |
|||
self.draw.draw_ellipse(xy, ink, 0, width) |
|||
|
|||
def line(self, xy, fill=None, width=0, joint=None): |
|||
"""Draw a line, or a connected sequence of line segments.""" |
|||
ink = self._getink(fill)[0] |
|||
if ink is not None: |
|||
self.draw.draw_lines(xy, ink, width) |
|||
if joint == "curve" and width > 4: |
|||
if not isinstance(xy[0], (list, tuple)): |
|||
xy = [tuple(xy[i : i + 2]) for i in range(0, len(xy), 2)] |
|||
for i in range(1, len(xy) - 1): |
|||
point = xy[i] |
|||
angles = [ |
|||
math.degrees(math.atan2(end[0] - start[0], start[1] - end[1])) |
|||
% 360 |
|||
for start, end in ((xy[i - 1], point), (point, xy[i + 1])) |
|||
] |
|||
if angles[0] == angles[1]: |
|||
# This is a straight line, so no joint is required |
|||
continue |
|||
|
|||
def coord_at_angle(coord, angle): |
|||
x, y = coord |
|||
angle -= 90 |
|||
distance = width / 2 - 1 |
|||
return tuple( |
|||
[ |
|||
p + (math.floor(p_d) if p_d > 0 else math.ceil(p_d)) |
|||
for p, p_d in ( |
|||
(x, distance * math.cos(math.radians(angle))), |
|||
(y, distance * math.sin(math.radians(angle))), |
|||
) |
|||
] |
|||
) |
|||
|
|||
flipped = ( |
|||
angles[1] > angles[0] and angles[1] - 180 > angles[0] |
|||
) or (angles[1] < angles[0] and angles[1] + 180 > angles[0]) |
|||
coords = [ |
|||
(point[0] - width / 2 + 1, point[1] - width / 2 + 1), |
|||
(point[0] + width / 2 - 1, point[1] + width / 2 - 1), |
|||
] |
|||
if flipped: |
|||
start, end = (angles[1] + 90, angles[0] + 90) |
|||
else: |
|||
start, end = (angles[0] - 90, angles[1] - 90) |
|||
self.pieslice(coords, start - 90, end - 90, fill) |
|||
|
|||
if width > 8: |
|||
# Cover potential gaps between the line and the joint |
|||
if flipped: |
|||
gapCoords = [ |
|||
coord_at_angle(point, angles[0] + 90), |
|||
point, |
|||
coord_at_angle(point, angles[1] + 90), |
|||
] |
|||
else: |
|||
gapCoords = [ |
|||
coord_at_angle(point, angles[0] - 90), |
|||
point, |
|||
coord_at_angle(point, angles[1] - 90), |
|||
] |
|||
self.line(gapCoords, fill, width=3) |
|||
|
|||
def shape(self, shape, fill=None, outline=None): |
|||
"""(Experimental) Draw a shape.""" |
|||
shape.close() |
|||
ink, fill = self._getink(outline, fill) |
|||
if fill is not None: |
|||
self.draw.draw_outline(shape, fill, 1) |
|||
if ink is not None and ink != fill: |
|||
self.draw.draw_outline(shape, ink, 0) |
|||
|
|||
def pieslice(self, xy, start, end, fill=None, outline=None, width=1): |
|||
"""Draw a pieslice.""" |
|||
ink, fill = self._getink(outline, fill) |
|||
if fill is not None: |
|||
self.draw.draw_pieslice(xy, start, end, fill, 1) |
|||
if ink is not None and ink != fill and width != 0: |
|||
self.draw.draw_pieslice(xy, start, end, ink, 0, width) |
|||
|
|||
def point(self, xy, fill=None): |
|||
"""Draw one or more individual pixels.""" |
|||
ink, fill = self._getink(fill) |
|||
if ink is not None: |
|||
self.draw.draw_points(xy, ink) |
|||
|
|||
def polygon(self, xy, fill=None, outline=None): |
|||
"""Draw a polygon.""" |
|||
ink, fill = self._getink(outline, fill) |
|||
if fill is not None: |
|||
self.draw.draw_polygon(xy, fill, 1) |
|||
if ink is not None and ink != fill: |
|||
self.draw.draw_polygon(xy, ink, 0) |
|||
|
|||
def regular_polygon( |
|||
self, bounding_circle, n_sides, rotation=0, fill=None, outline=None |
|||
): |
|||
"""Draw a regular polygon.""" |
|||
xy = _compute_regular_polygon_vertices(bounding_circle, n_sides, rotation) |
|||
self.polygon(xy, fill, outline) |
|||
|
|||
def rectangle(self, xy, fill=None, outline=None, width=1): |
|||
"""Draw a rectangle.""" |
|||
ink, fill = self._getink(outline, fill) |
|||
if fill is not None: |
|||
self.draw.draw_rectangle(xy, fill, 1) |
|||
if ink is not None and ink != fill and width != 0: |
|||
self.draw.draw_rectangle(xy, ink, 0, width) |
|||
|
|||
def _multiline_check(self, text): |
|||
"""Draw text.""" |
|||
split_character = "\n" if isinstance(text, str) else b"\n" |
|||
|
|||
return split_character in text |
|||
|
|||
def _multiline_split(self, text): |
|||
split_character = "\n" if isinstance(text, str) else b"\n" |
|||
|
|||
return text.split(split_character) |
|||
|
|||
def text( |
|||
self, |
|||
xy, |
|||
text, |
|||
fill=None, |
|||
font=None, |
|||
anchor=None, |
|||
spacing=4, |
|||
align="left", |
|||
direction=None, |
|||
features=None, |
|||
language=None, |
|||
stroke_width=0, |
|||
stroke_fill=None, |
|||
embedded_color=False, |
|||
*args, |
|||
**kwargs, |
|||
): |
|||
if self._multiline_check(text): |
|||
return self.multiline_text( |
|||
xy, |
|||
text, |
|||
fill, |
|||
font, |
|||
anchor, |
|||
spacing, |
|||
align, |
|||
direction, |
|||
features, |
|||
language, |
|||
stroke_width, |
|||
stroke_fill, |
|||
embedded_color, |
|||
) |
|||
|
|||
if embedded_color and self.mode not in ("RGB", "RGBA"): |
|||
raise ValueError("Embedded color supported only in RGB and RGBA modes") |
|||
|
|||
if font is None: |
|||
font = self.getfont() |
|||
|
|||
def getink(fill): |
|||
ink, fill = self._getink(fill) |
|||
if ink is None: |
|||
return fill |
|||
return ink |
|||
|
|||
def draw_text(ink, stroke_width=0, stroke_offset=None): |
|||
mode = self.fontmode |
|||
if stroke_width == 0 and embedded_color: |
|||
mode = "RGBA" |
|||
coord = xy |
|||
try: |
|||
mask, offset = font.getmask2( |
|||
text, |
|||
mode, |
|||
direction=direction, |
|||
features=features, |
|||
language=language, |
|||
stroke_width=stroke_width, |
|||
anchor=anchor, |
|||
ink=ink, |
|||
*args, |
|||
**kwargs, |
|||
) |
|||
coord = coord[0] + offset[0], coord[1] + offset[1] |
|||
except AttributeError: |
|||
try: |
|||
mask = font.getmask( |
|||
text, |
|||
mode, |
|||
direction, |
|||
features, |
|||
language, |
|||
stroke_width, |
|||
anchor, |
|||
ink, |
|||
*args, |
|||
**kwargs, |
|||
) |
|||
except TypeError: |
|||
mask = font.getmask(text) |
|||
if stroke_offset: |
|||
coord = coord[0] + stroke_offset[0], coord[1] + stroke_offset[1] |
|||
if mode == "RGBA": |
|||
# font.getmask2(mode="RGBA") returns color in RGB bands and mask in A |
|||
# extract mask and set text alpha |
|||
color, mask = mask, mask.getband(3) |
|||
color.fillband(3, (ink >> 24) & 0xFF) |
|||
coord2 = coord[0] + mask.size[0], coord[1] + mask.size[1] |
|||
self.im.paste(color, coord + coord2, mask) |
|||
else: |
|||
self.draw.draw_bitmap(coord, mask, ink) |
|||
|
|||
ink = getink(fill) |
|||
if ink is not None: |
|||
stroke_ink = None |
|||
if stroke_width: |
|||
stroke_ink = getink(stroke_fill) if stroke_fill is not None else ink |
|||
|
|||
if stroke_ink is not None: |
|||
# Draw stroked text |
|||
draw_text(stroke_ink, stroke_width) |
|||
|
|||
# Draw normal text |
|||
draw_text(ink, 0) |
|||
else: |
|||
# Only draw normal text |
|||
draw_text(ink) |
|||
|
|||
def multiline_text( |
|||
self, |
|||
xy, |
|||
text, |
|||
fill=None, |
|||
font=None, |
|||
anchor=None, |
|||
spacing=4, |
|||
align="left", |
|||
direction=None, |
|||
features=None, |
|||
language=None, |
|||
stroke_width=0, |
|||
stroke_fill=None, |
|||
embedded_color=False, |
|||
): |
|||
if direction == "ttb": |
|||
raise ValueError("ttb direction is unsupported for multiline text") |
|||
|
|||
if anchor is None: |
|||
anchor = "la" |
|||
elif len(anchor) != 2: |
|||
raise ValueError("anchor must be a 2 character string") |
|||
elif anchor[1] in "tb": |
|||
raise ValueError("anchor not supported for multiline text") |
|||
|
|||
widths = [] |
|||
max_width = 0 |
|||
lines = self._multiline_split(text) |
|||
line_spacing = ( |
|||
self.textsize("A", font=font, stroke_width=stroke_width)[1] + spacing |
|||
) |
|||
for line in lines: |
|||
line_width = self.textlength( |
|||
line, font, direction=direction, features=features, language=language |
|||
) |
|||
widths.append(line_width) |
|||
max_width = max(max_width, line_width) |
|||
|
|||
top = xy[1] |
|||
if anchor[1] == "m": |
|||
top -= (len(lines) - 1) * line_spacing / 2.0 |
|||
elif anchor[1] == "d": |
|||
top -= (len(lines) - 1) * line_spacing |
|||
|
|||
for idx, line in enumerate(lines): |
|||
left = xy[0] |
|||
width_difference = max_width - widths[idx] |
|||
|
|||
# first align left by anchor |
|||
if anchor[0] == "m": |
|||
left -= width_difference / 2.0 |
|||
elif anchor[0] == "r": |
|||
left -= width_difference |
|||
|
|||
# then align by align parameter |
|||
if align == "left": |
|||
pass |
|||
elif align == "center": |
|||
left += width_difference / 2.0 |
|||
elif align == "right": |
|||
left += width_difference |
|||
else: |
|||
raise ValueError('align must be "left", "center" or "right"') |
|||
|
|||
self.text( |
|||
(left, top), |
|||
line, |
|||
fill, |
|||
font, |
|||
anchor, |
|||
direction=direction, |
|||
features=features, |
|||
language=language, |
|||
stroke_width=stroke_width, |
|||
stroke_fill=stroke_fill, |
|||
embedded_color=embedded_color, |
|||
) |
|||
top += line_spacing |
|||
|
|||
def textsize( |
|||
self, |
|||
text, |
|||
font=None, |
|||
spacing=4, |
|||
direction=None, |
|||
features=None, |
|||
language=None, |
|||
stroke_width=0, |
|||
): |
|||
"""Get the size of a given string, in pixels.""" |
|||
if self._multiline_check(text): |
|||
return self.multiline_textsize( |
|||
text, font, spacing, direction, features, language, stroke_width |
|||
) |
|||
|
|||
if font is None: |
|||
font = self.getfont() |
|||
return font.getsize(text, direction, features, language, stroke_width) |
|||
|
|||
def multiline_textsize( |
|||
self, |
|||
text, |
|||
font=None, |
|||
spacing=4, |
|||
direction=None, |
|||
features=None, |
|||
language=None, |
|||
stroke_width=0, |
|||
): |
|||
max_width = 0 |
|||
lines = self._multiline_split(text) |
|||
line_spacing = ( |
|||
self.textsize("A", font=font, stroke_width=stroke_width)[1] + spacing |
|||
) |
|||
for line in lines: |
|||
line_width, line_height = self.textsize( |
|||
line, font, spacing, direction, features, language, stroke_width |
|||
) |
|||
max_width = max(max_width, line_width) |
|||
return max_width, len(lines) * line_spacing - spacing |
|||
|
|||
def textlength( |
|||
self, |
|||
text, |
|||
font=None, |
|||
direction=None, |
|||
features=None, |
|||
language=None, |
|||
embedded_color=False, |
|||
): |
|||
"""Get the length of a given string, in pixels with 1/64 precision.""" |
|||
if self._multiline_check(text): |
|||
raise ValueError("can't measure length of multiline text") |
|||
if embedded_color and self.mode not in ("RGB", "RGBA"): |
|||
raise ValueError("Embedded color supported only in RGB and RGBA modes") |
|||
|
|||
if font is None: |
|||
font = self.getfont() |
|||
mode = "RGBA" if embedded_color else self.fontmode |
|||
try: |
|||
return font.getlength(text, mode, direction, features, language) |
|||
except AttributeError: |
|||
size = self.textsize( |
|||
text, font, direction=direction, features=features, language=language |
|||
) |
|||
if direction == "ttb": |
|||
return size[1] |
|||
return size[0] |
|||
|
|||
def textbbox( |
|||
self, |
|||
xy, |
|||
text, |
|||
font=None, |
|||
anchor=None, |
|||
spacing=4, |
|||
align="left", |
|||
direction=None, |
|||
features=None, |
|||
language=None, |
|||
stroke_width=0, |
|||
embedded_color=False, |
|||
): |
|||
"""Get the bounding box of a given string, in pixels.""" |
|||
if embedded_color and self.mode not in ("RGB", "RGBA"): |
|||
raise ValueError("Embedded color supported only in RGB and RGBA modes") |
|||
|
|||
if self._multiline_check(text): |
|||
return self.multiline_textbbox( |
|||
xy, |
|||
text, |
|||
font, |
|||
anchor, |
|||
spacing, |
|||
align, |
|||
direction, |
|||
features, |
|||
language, |
|||
stroke_width, |
|||
embedded_color, |
|||
) |
|||
|
|||
if font is None: |
|||
font = self.getfont() |
|||
mode = "RGBA" if embedded_color else self.fontmode |
|||
bbox = font.getbbox( |
|||
text, mode, direction, features, language, stroke_width, anchor |
|||
) |
|||
return bbox[0] + xy[0], bbox[1] + xy[1], bbox[2] + xy[0], bbox[3] + xy[1] |
|||
|
|||
def multiline_textbbox( |
|||
self, |
|||
xy, |
|||
text, |
|||
font=None, |
|||
anchor=None, |
|||
spacing=4, |
|||
align="left", |
|||
direction=None, |
|||
features=None, |
|||
language=None, |
|||
stroke_width=0, |
|||
embedded_color=False, |
|||
): |
|||
if direction == "ttb": |
|||
raise ValueError("ttb direction is unsupported for multiline text") |
|||
|
|||
if anchor is None: |
|||
anchor = "la" |
|||
elif len(anchor) != 2: |
|||
raise ValueError("anchor must be a 2 character string") |
|||
elif anchor[1] in "tb": |
|||
raise ValueError("anchor not supported for multiline text") |
|||
|
|||
widths = [] |
|||
max_width = 0 |
|||
lines = self._multiline_split(text) |
|||
line_spacing = ( |
|||
self.textsize("A", font=font, stroke_width=stroke_width)[1] + spacing |
|||
) |
|||
for line in lines: |
|||
line_width = self.textlength( |
|||
line, |
|||
font, |
|||
direction=direction, |
|||
features=features, |
|||
language=language, |
|||
embedded_color=embedded_color, |
|||
) |
|||
widths.append(line_width) |
|||
max_width = max(max_width, line_width) |
|||
|
|||
top = xy[1] |
|||
if anchor[1] == "m": |
|||
top -= (len(lines) - 1) * line_spacing / 2.0 |
|||
elif anchor[1] == "d": |
|||
top -= (len(lines) - 1) * line_spacing |
|||
|
|||
bbox = None |
|||
|
|||
for idx, line in enumerate(lines): |
|||
left = xy[0] |
|||
width_difference = max_width - widths[idx] |
|||
|
|||
# first align left by anchor |
|||
if anchor[0] == "m": |
|||
left -= width_difference / 2.0 |
|||
elif anchor[0] == "r": |
|||
left -= width_difference |
|||
|
|||
# then align by align parameter |
|||
if align == "left": |
|||
pass |
|||
elif align == "center": |
|||
left += width_difference / 2.0 |
|||
elif align == "right": |
|||
left += width_difference |
|||
else: |
|||
raise ValueError('align must be "left", "center" or "right"') |
|||
|
|||
bbox_line = self.textbbox( |
|||
(left, top), |
|||
line, |
|||
font, |
|||
anchor, |
|||
direction=direction, |
|||
features=features, |
|||
language=language, |
|||
stroke_width=stroke_width, |
|||
embedded_color=embedded_color, |
|||
) |
|||
if bbox is None: |
|||
bbox = bbox_line |
|||
else: |
|||
bbox = ( |
|||
min(bbox[0], bbox_line[0]), |
|||
min(bbox[1], bbox_line[1]), |
|||
max(bbox[2], bbox_line[2]), |
|||
max(bbox[3], bbox_line[3]), |
|||
) |
|||
|
|||
top += line_spacing |
|||
|
|||
if bbox is None: |
|||
return xy[0], xy[1], xy[0], xy[1] |
|||
return bbox |
|||
|
|||
|
|||
def Draw(im, mode=None): |
|||
""" |
|||
A simple 2D drawing interface for PIL images. |
|||
|
|||
:param im: The image to draw in. |
|||
:param mode: Optional mode to use for color values. For RGB |
|||
images, this argument can be RGB or RGBA (to blend the |
|||
drawing into the image). For all other modes, this argument |
|||
must be the same as the image mode. If omitted, the mode |
|||
defaults to the mode of the image. |
|||
""" |
|||
try: |
|||
return im.getdraw(mode) |
|||
except AttributeError: |
|||
return ImageDraw(im, mode) |
|||
|
|||
|
|||
# experimental access to the outline API |
|||
try: |
|||
Outline = Image.core.outline |
|||
except AttributeError: |
|||
Outline = None |
|||
|
|||
|
|||
def getdraw(im=None, hints=None): |
|||
""" |
|||
(Experimental) A more advanced 2D drawing interface for PIL images, |
|||
based on the WCK interface. |
|||
|
|||
:param im: The image to draw in. |
|||
:param hints: An optional list of hints. |
|||
:returns: A (drawing context, drawing resource factory) tuple. |
|||
""" |
|||
# FIXME: this needs more work! |
|||
# FIXME: come up with a better 'hints' scheme. |
|||
handler = None |
|||
if not hints or "nicest" in hints: |
|||
try: |
|||
from . import _imagingagg as handler |
|||
except ImportError: |
|||
pass |
|||
if handler is None: |
|||
from . import ImageDraw2 as handler |
|||
if im: |
|||
im = handler.Draw(im) |
|||
return im, handler |
|||
|
|||
|
|||
def floodfill(image, xy, value, border=None, thresh=0): |
|||
""" |
|||
(experimental) Fills a bounded region with a given color. |
|||
|
|||
:param image: Target image. |
|||
:param xy: Seed position (a 2-item coordinate tuple). See |
|||
:ref:`coordinate-system`. |
|||
:param value: Fill color. |
|||
:param border: Optional border value. If given, the region consists of |
|||
pixels with a color different from the border color. If not given, |
|||
the region consists of pixels having the same color as the seed |
|||
pixel. |
|||
:param thresh: Optional threshold value which specifies a maximum |
|||
tolerable difference of a pixel value from the 'background' in |
|||
order for it to be replaced. Useful for filling regions of |
|||
non-homogeneous, but similar, colors. |
|||
""" |
|||
# based on an implementation by Eric S. Raymond |
|||
# amended by yo1995 @20180806 |
|||
pixel = image.load() |
|||
x, y = xy |
|||
try: |
|||
background = pixel[x, y] |
|||
if _color_diff(value, background) <= thresh: |
|||
return # seed point already has fill color |
|||
pixel[x, y] = value |
|||
except (ValueError, IndexError): |
|||
return # seed point outside image |
|||
edge = {(x, y)} |
|||
# use a set to keep record of current and previous edge pixels |
|||
# to reduce memory consumption |
|||
full_edge = set() |
|||
while edge: |
|||
new_edge = set() |
|||
for (x, y) in edge: # 4 adjacent method |
|||
for (s, t) in ((x + 1, y), (x - 1, y), (x, y + 1), (x, y - 1)): |
|||
# If already processed, or if a coordinate is negative, skip |
|||
if (s, t) in full_edge or s < 0 or t < 0: |
|||
continue |
|||
try: |
|||
p = pixel[s, t] |
|||
except (ValueError, IndexError): |
|||
pass |
|||
else: |
|||
full_edge.add((s, t)) |
|||
if border is None: |
|||
fill = _color_diff(p, background) <= thresh |
|||
else: |
|||
fill = p != value and p != border |
|||
if fill: |
|||
pixel[s, t] = value |
|||
new_edge.add((s, t)) |
|||
full_edge = edge # discard pixels processed |
|||
edge = new_edge |
|||
|
|||
|
|||
def _compute_regular_polygon_vertices(bounding_circle, n_sides, rotation): |
|||
""" |
|||
Generate a list of vertices for a 2D regular polygon. |
|||
|
|||
:param bounding_circle: The bounding circle is a tuple defined |
|||
by a point and radius. The polygon is inscribed in this circle. |
|||
(e.g. ``bounding_circle=(x, y, r)`` or ``((x, y), r)``) |
|||
:param n_sides: Number of sides |
|||
(e.g. ``n_sides=3`` for a triangle, ``6`` for a hexagon) |
|||
:param rotation: Apply an arbitrary rotation to the polygon |
|||
(e.g. ``rotation=90``, applies a 90 degree rotation) |
|||
:return: List of regular polygon vertices |
|||
(e.g. ``[(25, 50), (50, 50), (50, 25), (25, 25)]``) |
|||
|
|||
How are the vertices computed? |
|||
1. Compute the following variables |
|||
- theta: Angle between the apothem & the nearest polygon vertex |
|||
- side_length: Length of each polygon edge |
|||
- centroid: Center of bounding circle (1st, 2nd elements of bounding_circle) |
|||
- polygon_radius: Polygon radius (last element of bounding_circle) |
|||
- angles: Location of each polygon vertex in polar grid |
|||
(e.g. A square with 0 degree rotation => [225.0, 315.0, 45.0, 135.0]) |
|||
|
|||
2. For each angle in angles, get the polygon vertex at that angle |
|||
The vertex is computed using the equation below. |
|||
X= xcos(φ) + ysin(φ) |
|||
Y= −xsin(φ) + ycos(φ) |
|||
|
|||
Note: |
|||
φ = angle in degrees |
|||
x = 0 |
|||
y = polygon_radius |
|||
|
|||
The formula above assumes rotation around the origin. |
|||
In our case, we are rotating around the centroid. |
|||
To account for this, we use the formula below |
|||
X = xcos(φ) + ysin(φ) + centroid_x |
|||
Y = −xsin(φ) + ycos(φ) + centroid_y |
|||
""" |
|||
# 1. Error Handling |
|||
# 1.1 Check `n_sides` has an appropriate value |
|||
if not isinstance(n_sides, int): |
|||
raise TypeError("n_sides should be an int") |
|||
if n_sides < 3: |
|||
raise ValueError("n_sides should be an int > 2") |
|||
|
|||
# 1.2 Check `bounding_circle` has an appropriate value |
|||
if not isinstance(bounding_circle, (list, tuple)): |
|||
raise TypeError("bounding_circle should be a tuple") |
|||
|
|||
if len(bounding_circle) == 3: |
|||
*centroid, polygon_radius = bounding_circle |
|||
elif len(bounding_circle) == 2: |
|||
centroid, polygon_radius = bounding_circle |
|||
else: |
|||
raise ValueError( |
|||
"bounding_circle should contain 2D coordinates " |
|||
"and a radius (e.g. (x, y, r) or ((x, y), r) )" |
|||
) |
|||
|
|||
if not all(isinstance(i, (int, float)) for i in (*centroid, polygon_radius)): |
|||
raise ValueError("bounding_circle should only contain numeric data") |
|||
|
|||
if not len(centroid) == 2: |
|||
raise ValueError( |
|||
"bounding_circle centre should contain 2D coordinates (e.g. (x, y))" |
|||
) |
|||
|
|||
if polygon_radius <= 0: |
|||
raise ValueError("bounding_circle radius should be > 0") |
|||
|
|||
# 1.3 Check `rotation` has an appropriate value |
|||
if not isinstance(rotation, (int, float)): |
|||
raise ValueError("rotation should be an int or float") |
|||
|
|||
# 2. Define Helper Functions |
|||
def _apply_rotation(point, degrees, centroid): |
|||
return ( |
|||
round( |
|||
point[0] * math.cos(math.radians(360 - degrees)) |
|||
- point[1] * math.sin(math.radians(360 - degrees)) |
|||
+ centroid[0], |
|||
2, |
|||
), |
|||
round( |
|||
point[1] * math.cos(math.radians(360 - degrees)) |
|||
+ point[0] * math.sin(math.radians(360 - degrees)) |
|||
+ centroid[1], |
|||
2, |
|||
), |
|||
) |
|||
|
|||
def _compute_polygon_vertex(centroid, polygon_radius, angle): |
|||
start_point = [polygon_radius, 0] |
|||
return _apply_rotation(start_point, angle, centroid) |
|||
|
|||
def _get_angles(n_sides, rotation): |
|||
angles = [] |
|||
degrees = 360 / n_sides |
|||
# Start with the bottom left polygon vertex |
|||
current_angle = (270 - 0.5 * degrees) + rotation |
|||
for _ in range(0, n_sides): |
|||
angles.append(current_angle) |
|||
current_angle += degrees |
|||
if current_angle > 360: |
|||
current_angle -= 360 |
|||
return angles |
|||
|
|||
# 3. Variable Declarations |
|||
angles = _get_angles(n_sides, rotation) |
|||
|
|||
# 4. Compute Vertices |
|||
return [ |
|||
_compute_polygon_vertex(centroid, polygon_radius, angle) for angle in angles |
|||
] |
|||
|
|||
|
|||
def _color_diff(color1, color2): |
|||
""" |
|||
Uses 1-norm distance to calculate difference between two values. |
|||
""" |
|||
if isinstance(color2, tuple): |
|||
return sum([abs(color1[i] - color2[i]) for i in range(0, len(color2))]) |
|||
else: |
|||
return abs(color1 - color2) |
@ -0,0 +1,179 @@ |
|||
# |
|||
# The Python Imaging Library |
|||
# $Id$ |
|||
# |
|||
# WCK-style drawing interface operations |
|||
# |
|||
# History: |
|||
# 2003-12-07 fl created |
|||
# 2005-05-15 fl updated; added to PIL as ImageDraw2 |
|||
# 2005-05-15 fl added text support |
|||
# 2005-05-20 fl added arc/chord/pieslice support |
|||
# |
|||
# Copyright (c) 2003-2005 by Secret Labs AB |
|||
# Copyright (c) 2003-2005 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
|
|||
""" |
|||
(Experimental) WCK-style drawing interface operations |
|||
|
|||
.. seealso:: :py:mod:`PIL.ImageDraw` |
|||
""" |
|||
|
|||
|
|||
from . import Image, ImageColor, ImageDraw, ImageFont, ImagePath |
|||
|
|||
|
|||
class Pen: |
|||
"""Stores an outline color and width.""" |
|||
|
|||
def __init__(self, color, width=1, opacity=255): |
|||
self.color = ImageColor.getrgb(color) |
|||
self.width = width |
|||
|
|||
|
|||
class Brush: |
|||
"""Stores a fill color""" |
|||
|
|||
def __init__(self, color, opacity=255): |
|||
self.color = ImageColor.getrgb(color) |
|||
|
|||
|
|||
class Font: |
|||
"""Stores a TrueType font and color""" |
|||
|
|||
def __init__(self, color, file, size=12): |
|||
# FIXME: add support for bitmap fonts |
|||
self.color = ImageColor.getrgb(color) |
|||
self.font = ImageFont.truetype(file, size) |
|||
|
|||
|
|||
class Draw: |
|||
""" |
|||
(Experimental) WCK-style drawing interface |
|||
""" |
|||
|
|||
def __init__(self, image, size=None, color=None): |
|||
if not hasattr(image, "im"): |
|||
image = Image.new(image, size, color) |
|||
self.draw = ImageDraw.Draw(image) |
|||
self.image = image |
|||
self.transform = None |
|||
|
|||
def flush(self): |
|||
return self.image |
|||
|
|||
def render(self, op, xy, pen, brush=None): |
|||
# handle color arguments |
|||
outline = fill = None |
|||
width = 1 |
|||
if isinstance(pen, Pen): |
|||
outline = pen.color |
|||
width = pen.width |
|||
elif isinstance(brush, Pen): |
|||
outline = brush.color |
|||
width = brush.width |
|||
if isinstance(brush, Brush): |
|||
fill = brush.color |
|||
elif isinstance(pen, Brush): |
|||
fill = pen.color |
|||
# handle transformation |
|||
if self.transform: |
|||
xy = ImagePath.Path(xy) |
|||
xy.transform(self.transform) |
|||
# render the item |
|||
if op == "line": |
|||
self.draw.line(xy, fill=outline, width=width) |
|||
else: |
|||
getattr(self.draw, op)(xy, fill=fill, outline=outline) |
|||
|
|||
def settransform(self, offset): |
|||
"""Sets a transformation offset.""" |
|||
(xoffset, yoffset) = offset |
|||
self.transform = (1, 0, xoffset, 0, 1, yoffset) |
|||
|
|||
def arc(self, xy, start, end, *options): |
|||
""" |
|||
Draws an arc (a portion of a circle outline) between the start and end |
|||
angles, inside the given bounding box. |
|||
|
|||
.. seealso:: :py:meth:`PIL.ImageDraw.ImageDraw.arc` |
|||
""" |
|||
self.render("arc", xy, start, end, *options) |
|||
|
|||
def chord(self, xy, start, end, *options): |
|||
""" |
|||
Same as :py:meth:`~PIL.ImageDraw2.Draw.arc`, but connects the end points |
|||
with a straight line. |
|||
|
|||
.. seealso:: :py:meth:`PIL.ImageDraw.ImageDraw.chord` |
|||
""" |
|||
self.render("chord", xy, start, end, *options) |
|||
|
|||
def ellipse(self, xy, *options): |
|||
""" |
|||
Draws an ellipse inside the given bounding box. |
|||
|
|||
.. seealso:: :py:meth:`PIL.ImageDraw.ImageDraw.ellipse` |
|||
""" |
|||
self.render("ellipse", xy, *options) |
|||
|
|||
def line(self, xy, *options): |
|||
""" |
|||
Draws a line between the coordinates in the ``xy`` list. |
|||
|
|||
.. seealso:: :py:meth:`PIL.ImageDraw.ImageDraw.line` |
|||
""" |
|||
self.render("line", xy, *options) |
|||
|
|||
def pieslice(self, xy, start, end, *options): |
|||
""" |
|||
Same as arc, but also draws straight lines between the end points and the |
|||
center of the bounding box. |
|||
|
|||
.. seealso:: :py:meth:`PIL.ImageDraw.ImageDraw.pieslice` |
|||
""" |
|||
self.render("pieslice", xy, start, end, *options) |
|||
|
|||
def polygon(self, xy, *options): |
|||
""" |
|||
Draws a polygon. |
|||
|
|||
The polygon outline consists of straight lines between the given |
|||
coordinates, plus a straight line between the last and the first |
|||
coordinate. |
|||
|
|||
|
|||
.. seealso:: :py:meth:`PIL.ImageDraw.ImageDraw.polygon` |
|||
""" |
|||
self.render("polygon", xy, *options) |
|||
|
|||
def rectangle(self, xy, *options): |
|||
""" |
|||
Draws a rectangle. |
|||
|
|||
.. seealso:: :py:meth:`PIL.ImageDraw.ImageDraw.rectangle` |
|||
""" |
|||
self.render("rectangle", xy, *options) |
|||
|
|||
def text(self, xy, text, font): |
|||
""" |
|||
Draws the string at the given position. |
|||
|
|||
.. seealso:: :py:meth:`PIL.ImageDraw.ImageDraw.text` |
|||
""" |
|||
if self.transform: |
|||
xy = ImagePath.Path(xy) |
|||
xy.transform(self.transform) |
|||
self.draw.text(xy, text, font=font.font, fill=font.color) |
|||
|
|||
def textsize(self, text, font): |
|||
""" |
|||
Return the size of the given string, in pixels. |
|||
|
|||
.. seealso:: :py:meth:`PIL.ImageDraw.ImageDraw.textsize` |
|||
""" |
|||
return self.draw.textsize(text, font=font.font) |
@ -0,0 +1,103 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# image enhancement classes |
|||
# |
|||
# For a background, see "Image Processing By Interpolation and |
|||
# Extrapolation", Paul Haeberli and Douglas Voorhies. Available |
|||
# at http://www.graficaobscura.com/interp/index.html |
|||
# |
|||
# History: |
|||
# 1996-03-23 fl Created |
|||
# 2009-06-16 fl Fixed mean calculation |
|||
# |
|||
# Copyright (c) Secret Labs AB 1997. |
|||
# Copyright (c) Fredrik Lundh 1996. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
from . import Image, ImageFilter, ImageStat |
|||
|
|||
|
|||
class _Enhance: |
|||
def enhance(self, factor): |
|||
""" |
|||
Returns an enhanced image. |
|||
|
|||
:param factor: A floating point value controlling the enhancement. |
|||
Factor 1.0 always returns a copy of the original image, |
|||
lower factors mean less color (brightness, contrast, |
|||
etc), and higher values more. There are no restrictions |
|||
on this value. |
|||
:rtype: :py:class:`~PIL.Image.Image` |
|||
""" |
|||
return Image.blend(self.degenerate, self.image, factor) |
|||
|
|||
|
|||
class Color(_Enhance): |
|||
"""Adjust image color balance. |
|||
|
|||
This class can be used to adjust the colour balance of an image, in |
|||
a manner similar to the controls on a colour TV set. An enhancement |
|||
factor of 0.0 gives a black and white image. A factor of 1.0 gives |
|||
the original image. |
|||
""" |
|||
|
|||
def __init__(self, image): |
|||
self.image = image |
|||
self.intermediate_mode = "L" |
|||
if "A" in image.getbands(): |
|||
self.intermediate_mode = "LA" |
|||
|
|||
self.degenerate = image.convert(self.intermediate_mode).convert(image.mode) |
|||
|
|||
|
|||
class Contrast(_Enhance): |
|||
"""Adjust image contrast. |
|||
|
|||
This class can be used to control the contrast of an image, similar |
|||
to the contrast control on a TV set. An enhancement factor of 0.0 |
|||
gives a solid grey image. A factor of 1.0 gives the original image. |
|||
""" |
|||
|
|||
def __init__(self, image): |
|||
self.image = image |
|||
mean = int(ImageStat.Stat(image.convert("L")).mean[0] + 0.5) |
|||
self.degenerate = Image.new("L", image.size, mean).convert(image.mode) |
|||
|
|||
if "A" in image.getbands(): |
|||
self.degenerate.putalpha(image.getchannel("A")) |
|||
|
|||
|
|||
class Brightness(_Enhance): |
|||
"""Adjust image brightness. |
|||
|
|||
This class can be used to control the brightness of an image. An |
|||
enhancement factor of 0.0 gives a black image. A factor of 1.0 gives the |
|||
original image. |
|||
""" |
|||
|
|||
def __init__(self, image): |
|||
self.image = image |
|||
self.degenerate = Image.new(image.mode, image.size, 0) |
|||
|
|||
if "A" in image.getbands(): |
|||
self.degenerate.putalpha(image.getchannel("A")) |
|||
|
|||
|
|||
class Sharpness(_Enhance): |
|||
"""Adjust image sharpness. |
|||
|
|||
This class can be used to adjust the sharpness of an image. An |
|||
enhancement factor of 0.0 gives a blurred image, a factor of 1.0 gives the |
|||
original image, and a factor of 2.0 gives a sharpened image. |
|||
""" |
|||
|
|||
def __init__(self, image): |
|||
self.image = image |
|||
self.degenerate = image.filter(ImageFilter.SMOOTH) |
|||
|
|||
if "A" in image.getbands(): |
|||
self.degenerate.putalpha(image.getchannel("A")) |
@ -0,0 +1,697 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# base class for image file handlers |
|||
# |
|||
# history: |
|||
# 1995-09-09 fl Created |
|||
# 1996-03-11 fl Fixed load mechanism. |
|||
# 1996-04-15 fl Added pcx/xbm decoders. |
|||
# 1996-04-30 fl Added encoders. |
|||
# 1996-12-14 fl Added load helpers |
|||
# 1997-01-11 fl Use encode_to_file where possible |
|||
# 1997-08-27 fl Flush output in _save |
|||
# 1998-03-05 fl Use memory mapping for some modes |
|||
# 1999-02-04 fl Use memory mapping also for "I;16" and "I;16B" |
|||
# 1999-05-31 fl Added image parser |
|||
# 2000-10-12 fl Set readonly flag on memory-mapped images |
|||
# 2002-03-20 fl Use better messages for common decoder errors |
|||
# 2003-04-21 fl Fall back on mmap/map_buffer if map is not available |
|||
# 2003-10-30 fl Added StubImageFile class |
|||
# 2004-02-25 fl Made incremental parser more robust |
|||
# |
|||
# Copyright (c) 1997-2004 by Secret Labs AB |
|||
# Copyright (c) 1995-2004 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
import io |
|||
import struct |
|||
import sys |
|||
import warnings |
|||
|
|||
from . import Image |
|||
from ._util import isPath |
|||
|
|||
MAXBLOCK = 65536 |
|||
|
|||
SAFEBLOCK = 1024 * 1024 |
|||
|
|||
LOAD_TRUNCATED_IMAGES = False |
|||
"""Whether or not to load truncated image files. User code may change this.""" |
|||
|
|||
ERRORS = { |
|||
-1: "image buffer overrun error", |
|||
-2: "decoding error", |
|||
-3: "unknown error", |
|||
-8: "bad configuration", |
|||
-9: "out of memory error", |
|||
} |
|||
"""Dict of known error codes returned from :meth:`.PyDecoder.decode`.""" |
|||
|
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
# Helpers |
|||
|
|||
|
|||
def raise_oserror(error): |
|||
try: |
|||
message = Image.core.getcodecstatus(error) |
|||
except AttributeError: |
|||
message = ERRORS.get(error) |
|||
if not message: |
|||
message = f"decoder error {error}" |
|||
raise OSError(message + " when reading image file") |
|||
|
|||
|
|||
def raise_ioerror(error): |
|||
warnings.warn( |
|||
"raise_ioerror is deprecated and will be removed in Pillow 9 (2022-01-02). " |
|||
"Use raise_oserror instead.", |
|||
DeprecationWarning, |
|||
) |
|||
return raise_oserror(error) |
|||
|
|||
|
|||
def _tilesort(t): |
|||
# sort on offset |
|||
return t[2] |
|||
|
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
# ImageFile base class |
|||
|
|||
|
|||
class ImageFile(Image.Image): |
|||
"""Base class for image file format handlers.""" |
|||
|
|||
def __init__(self, fp=None, filename=None): |
|||
super().__init__() |
|||
|
|||
self._min_frame = 0 |
|||
|
|||
self.custom_mimetype = None |
|||
|
|||
self.tile = None |
|||
""" A list of tile descriptors, or ``None`` """ |
|||
|
|||
self.readonly = 1 # until we know better |
|||
|
|||
self.decoderconfig = () |
|||
self.decodermaxblock = MAXBLOCK |
|||
|
|||
if isPath(fp): |
|||
# filename |
|||
self.fp = open(fp, "rb") |
|||
self.filename = fp |
|||
self._exclusive_fp = True |
|||
else: |
|||
# stream |
|||
self.fp = fp |
|||
self.filename = filename |
|||
# can be overridden |
|||
self._exclusive_fp = None |
|||
|
|||
try: |
|||
try: |
|||
self._open() |
|||
except ( |
|||
IndexError, # end of data |
|||
TypeError, # end of data (ord) |
|||
KeyError, # unsupported mode |
|||
EOFError, # got header but not the first frame |
|||
struct.error, |
|||
) as v: |
|||
raise SyntaxError(v) from v |
|||
|
|||
if not self.mode or self.size[0] <= 0: |
|||
raise SyntaxError("not identified by this driver") |
|||
except BaseException: |
|||
# close the file only if we have opened it this constructor |
|||
if self._exclusive_fp: |
|||
self.fp.close() |
|||
raise |
|||
|
|||
def get_format_mimetype(self): |
|||
if self.custom_mimetype: |
|||
return self.custom_mimetype |
|||
if self.format is not None: |
|||
return Image.MIME.get(self.format.upper()) |
|||
|
|||
def verify(self): |
|||
"""Check file integrity""" |
|||
|
|||
# raise exception if something's wrong. must be called |
|||
# directly after open, and closes file when finished. |
|||
if self._exclusive_fp: |
|||
self.fp.close() |
|||
self.fp = None |
|||
|
|||
def load(self): |
|||
"""Load image data based on tile list""" |
|||
|
|||
if self.tile is None: |
|||
raise OSError("cannot load this image") |
|||
|
|||
pixel = Image.Image.load(self) |
|||
if not self.tile: |
|||
return pixel |
|||
|
|||
self.map = None |
|||
use_mmap = self.filename and len(self.tile) == 1 |
|||
# As of pypy 2.1.0, memory mapping was failing here. |
|||
use_mmap = use_mmap and not hasattr(sys, "pypy_version_info") |
|||
|
|||
readonly = 0 |
|||
|
|||
# look for read/seek overrides |
|||
try: |
|||
read = self.load_read |
|||
# don't use mmap if there are custom read/seek functions |
|||
use_mmap = False |
|||
except AttributeError: |
|||
read = self.fp.read |
|||
|
|||
try: |
|||
seek = self.load_seek |
|||
use_mmap = False |
|||
except AttributeError: |
|||
seek = self.fp.seek |
|||
|
|||
if use_mmap: |
|||
# try memory mapping |
|||
decoder_name, extents, offset, args = self.tile[0] |
|||
if ( |
|||
decoder_name == "raw" |
|||
and len(args) >= 3 |
|||
and args[0] == self.mode |
|||
and args[0] in Image._MAPMODES |
|||
): |
|||
try: |
|||
if hasattr(Image.core, "map"): |
|||
# use built-in mapper WIN32 only |
|||
self.map = Image.core.map(self.filename) |
|||
self.map.seek(offset) |
|||
self.im = self.map.readimage( |
|||
self.mode, self.size, args[1], args[2] |
|||
) |
|||
else: |
|||
# use mmap, if possible |
|||
import mmap |
|||
|
|||
with open(self.filename) as fp: |
|||
self.map = mmap.mmap( |
|||
fp.fileno(), 0, access=mmap.ACCESS_READ |
|||
) |
|||
self.im = Image.core.map_buffer( |
|||
self.map, self.size, decoder_name, offset, args |
|||
) |
|||
readonly = 1 |
|||
# After trashing self.im, |
|||
# we might need to reload the palette data. |
|||
if self.palette: |
|||
self.palette.dirty = 1 |
|||
except (AttributeError, OSError, ImportError): |
|||
self.map = None |
|||
|
|||
self.load_prepare() |
|||
err_code = -3 # initialize to unknown error |
|||
if not self.map: |
|||
# sort tiles in file order |
|||
self.tile.sort(key=_tilesort) |
|||
|
|||
try: |
|||
# FIXME: This is a hack to handle TIFF's JpegTables tag. |
|||
prefix = self.tile_prefix |
|||
except AttributeError: |
|||
prefix = b"" |
|||
|
|||
for decoder_name, extents, offset, args in self.tile: |
|||
decoder = Image._getdecoder( |
|||
self.mode, decoder_name, args, self.decoderconfig |
|||
) |
|||
try: |
|||
seek(offset) |
|||
decoder.setimage(self.im, extents) |
|||
if decoder.pulls_fd: |
|||
decoder.setfd(self.fp) |
|||
status, err_code = decoder.decode(b"") |
|||
else: |
|||
b = prefix |
|||
while True: |
|||
try: |
|||
s = read(self.decodermaxblock) |
|||
except (IndexError, struct.error) as e: |
|||
# truncated png/gif |
|||
if LOAD_TRUNCATED_IMAGES: |
|||
break |
|||
else: |
|||
raise OSError("image file is truncated") from e |
|||
|
|||
if not s: # truncated jpeg |
|||
if LOAD_TRUNCATED_IMAGES: |
|||
break |
|||
else: |
|||
raise OSError( |
|||
"image file is truncated " |
|||
f"({len(b)} bytes not processed)" |
|||
) |
|||
|
|||
b = b + s |
|||
n, err_code = decoder.decode(b) |
|||
if n < 0: |
|||
break |
|||
b = b[n:] |
|||
finally: |
|||
# Need to cleanup here to prevent leaks |
|||
decoder.cleanup() |
|||
|
|||
self.tile = [] |
|||
self.readonly = readonly |
|||
|
|||
self.load_end() |
|||
|
|||
if self._exclusive_fp and self._close_exclusive_fp_after_loading: |
|||
self.fp.close() |
|||
self.fp = None |
|||
|
|||
if not self.map and not LOAD_TRUNCATED_IMAGES and err_code < 0: |
|||
# still raised if decoder fails to return anything |
|||
raise_oserror(err_code) |
|||
|
|||
return Image.Image.load(self) |
|||
|
|||
def load_prepare(self): |
|||
# create image memory if necessary |
|||
if not self.im or self.im.mode != self.mode or self.im.size != self.size: |
|||
self.im = Image.core.new(self.mode, self.size) |
|||
# create palette (optional) |
|||
if self.mode == "P": |
|||
Image.Image.load(self) |
|||
|
|||
def load_end(self): |
|||
# may be overridden |
|||
pass |
|||
|
|||
# may be defined for contained formats |
|||
# def load_seek(self, pos): |
|||
# pass |
|||
|
|||
# may be defined for blocked formats (e.g. PNG) |
|||
# def load_read(self, bytes): |
|||
# pass |
|||
|
|||
def _seek_check(self, frame): |
|||
if ( |
|||
frame < self._min_frame |
|||
# Only check upper limit on frames if additional seek operations |
|||
# are not required to do so |
|||
or ( |
|||
not (hasattr(self, "_n_frames") and self._n_frames is None) |
|||
and frame >= self.n_frames + self._min_frame |
|||
) |
|||
): |
|||
raise EOFError("attempt to seek outside sequence") |
|||
|
|||
return self.tell() != frame |
|||
|
|||
|
|||
class StubImageFile(ImageFile): |
|||
""" |
|||
Base class for stub image loaders. |
|||
|
|||
A stub loader is an image loader that can identify files of a |
|||
certain format, but relies on external code to load the file. |
|||
""" |
|||
|
|||
def _open(self): |
|||
raise NotImplementedError("StubImageFile subclass must implement _open") |
|||
|
|||
def load(self): |
|||
loader = self._load() |
|||
if loader is None: |
|||
raise OSError(f"cannot find loader for this {self.format} file") |
|||
image = loader.load(self) |
|||
assert image is not None |
|||
# become the other object (!) |
|||
self.__class__ = image.__class__ |
|||
self.__dict__ = image.__dict__ |
|||
|
|||
def _load(self): |
|||
"""(Hook) Find actual image loader.""" |
|||
raise NotImplementedError("StubImageFile subclass must implement _load") |
|||
|
|||
|
|||
class Parser: |
|||
""" |
|||
Incremental image parser. This class implements the standard |
|||
feed/close consumer interface. |
|||
""" |
|||
|
|||
incremental = None |
|||
image = None |
|||
data = None |
|||
decoder = None |
|||
offset = 0 |
|||
finished = 0 |
|||
|
|||
def reset(self): |
|||
""" |
|||
(Consumer) Reset the parser. Note that you can only call this |
|||
method immediately after you've created a parser; parser |
|||
instances cannot be reused. |
|||
""" |
|||
assert self.data is None, "cannot reuse parsers" |
|||
|
|||
def feed(self, data): |
|||
""" |
|||
(Consumer) Feed data to the parser. |
|||
|
|||
:param data: A string buffer. |
|||
:exception OSError: If the parser failed to parse the image file. |
|||
""" |
|||
# collect data |
|||
|
|||
if self.finished: |
|||
return |
|||
|
|||
if self.data is None: |
|||
self.data = data |
|||
else: |
|||
self.data = self.data + data |
|||
|
|||
# parse what we have |
|||
if self.decoder: |
|||
|
|||
if self.offset > 0: |
|||
# skip header |
|||
skip = min(len(self.data), self.offset) |
|||
self.data = self.data[skip:] |
|||
self.offset = self.offset - skip |
|||
if self.offset > 0 or not self.data: |
|||
return |
|||
|
|||
n, e = self.decoder.decode(self.data) |
|||
|
|||
if n < 0: |
|||
# end of stream |
|||
self.data = None |
|||
self.finished = 1 |
|||
if e < 0: |
|||
# decoding error |
|||
self.image = None |
|||
raise_oserror(e) |
|||
else: |
|||
# end of image |
|||
return |
|||
self.data = self.data[n:] |
|||
|
|||
elif self.image: |
|||
|
|||
# if we end up here with no decoder, this file cannot |
|||
# be incrementally parsed. wait until we've gotten all |
|||
# available data |
|||
pass |
|||
|
|||
else: |
|||
|
|||
# attempt to open this file |
|||
try: |
|||
with io.BytesIO(self.data) as fp: |
|||
im = Image.open(fp) |
|||
except OSError: |
|||
# traceback.print_exc() |
|||
pass # not enough data |
|||
else: |
|||
flag = hasattr(im, "load_seek") or hasattr(im, "load_read") |
|||
if flag or len(im.tile) != 1: |
|||
# custom load code, or multiple tiles |
|||
self.decode = None |
|||
else: |
|||
# initialize decoder |
|||
im.load_prepare() |
|||
d, e, o, a = im.tile[0] |
|||
im.tile = [] |
|||
self.decoder = Image._getdecoder(im.mode, d, a, im.decoderconfig) |
|||
self.decoder.setimage(im.im, e) |
|||
|
|||
# calculate decoder offset |
|||
self.offset = o |
|||
if self.offset <= len(self.data): |
|||
self.data = self.data[self.offset :] |
|||
self.offset = 0 |
|||
|
|||
self.image = im |
|||
|
|||
def __enter__(self): |
|||
return self |
|||
|
|||
def __exit__(self, *args): |
|||
self.close() |
|||
|
|||
def close(self): |
|||
""" |
|||
(Consumer) Close the stream. |
|||
|
|||
:returns: An image object. |
|||
:exception OSError: If the parser failed to parse the image file either |
|||
because it cannot be identified or cannot be |
|||
decoded. |
|||
""" |
|||
# finish decoding |
|||
if self.decoder: |
|||
# get rid of what's left in the buffers |
|||
self.feed(b"") |
|||
self.data = self.decoder = None |
|||
if not self.finished: |
|||
raise OSError("image was incomplete") |
|||
if not self.image: |
|||
raise OSError("cannot parse this image") |
|||
if self.data: |
|||
# incremental parsing not possible; reopen the file |
|||
# not that we have all data |
|||
with io.BytesIO(self.data) as fp: |
|||
try: |
|||
self.image = Image.open(fp) |
|||
finally: |
|||
self.image.load() |
|||
return self.image |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
|
|||
|
|||
def _save(im, fp, tile, bufsize=0): |
|||
"""Helper to save image based on tile list |
|||
|
|||
:param im: Image object. |
|||
:param fp: File object. |
|||
:param tile: Tile list. |
|||
:param bufsize: Optional buffer size |
|||
""" |
|||
|
|||
im.load() |
|||
if not hasattr(im, "encoderconfig"): |
|||
im.encoderconfig = () |
|||
tile.sort(key=_tilesort) |
|||
# FIXME: make MAXBLOCK a configuration parameter |
|||
# It would be great if we could have the encoder specify what it needs |
|||
# But, it would need at least the image size in most cases. RawEncode is |
|||
# a tricky case. |
|||
bufsize = max(MAXBLOCK, bufsize, im.size[0] * 4) # see RawEncode.c |
|||
if fp == sys.stdout: |
|||
fp.flush() |
|||
return |
|||
try: |
|||
fh = fp.fileno() |
|||
fp.flush() |
|||
except (AttributeError, io.UnsupportedOperation) as exc: |
|||
# compress to Python file-compatible object |
|||
for e, b, o, a in tile: |
|||
e = Image._getencoder(im.mode, e, a, im.encoderconfig) |
|||
if o > 0: |
|||
fp.seek(o) |
|||
e.setimage(im.im, b) |
|||
if e.pushes_fd: |
|||
e.setfd(fp) |
|||
l, s = e.encode_to_pyfd() |
|||
else: |
|||
while True: |
|||
l, s, d = e.encode(bufsize) |
|||
fp.write(d) |
|||
if s: |
|||
break |
|||
if s < 0: |
|||
raise OSError(f"encoder error {s} when writing image file") from exc |
|||
e.cleanup() |
|||
else: |
|||
# slight speedup: compress to real file object |
|||
for e, b, o, a in tile: |
|||
e = Image._getencoder(im.mode, e, a, im.encoderconfig) |
|||
if o > 0: |
|||
fp.seek(o) |
|||
e.setimage(im.im, b) |
|||
if e.pushes_fd: |
|||
e.setfd(fp) |
|||
l, s = e.encode_to_pyfd() |
|||
else: |
|||
s = e.encode_to_file(fh, bufsize) |
|||
if s < 0: |
|||
raise OSError(f"encoder error {s} when writing image file") |
|||
e.cleanup() |
|||
if hasattr(fp, "flush"): |
|||
fp.flush() |
|||
|
|||
|
|||
def _safe_read(fp, size): |
|||
""" |
|||
Reads large blocks in a safe way. Unlike fp.read(n), this function |
|||
doesn't trust the user. If the requested size is larger than |
|||
SAFEBLOCK, the file is read block by block. |
|||
|
|||
:param fp: File handle. Must implement a <b>read</b> method. |
|||
:param size: Number of bytes to read. |
|||
:returns: A string containing up to <i>size</i> bytes of data. |
|||
""" |
|||
if size <= 0: |
|||
return b"" |
|||
if size <= SAFEBLOCK: |
|||
return fp.read(size) |
|||
data = [] |
|||
while size > 0: |
|||
block = fp.read(min(size, SAFEBLOCK)) |
|||
if not block: |
|||
break |
|||
data.append(block) |
|||
size -= len(block) |
|||
return b"".join(data) |
|||
|
|||
|
|||
class PyCodecState: |
|||
def __init__(self): |
|||
self.xsize = 0 |
|||
self.ysize = 0 |
|||
self.xoff = 0 |
|||
self.yoff = 0 |
|||
|
|||
def extents(self): |
|||
return (self.xoff, self.yoff, self.xoff + self.xsize, self.yoff + self.ysize) |
|||
|
|||
|
|||
class PyDecoder: |
|||
""" |
|||
Python implementation of a format decoder. Override this class and |
|||
add the decoding logic in the :meth:`decode` method. |
|||
|
|||
See :ref:`Writing Your Own File Decoder in Python<file-decoders-py>` |
|||
""" |
|||
|
|||
_pulls_fd = False |
|||
|
|||
def __init__(self, mode, *args): |
|||
self.im = None |
|||
self.state = PyCodecState() |
|||
self.fd = None |
|||
self.mode = mode |
|||
self.init(args) |
|||
|
|||
def init(self, args): |
|||
""" |
|||
Override to perform decoder specific initialization |
|||
|
|||
:param args: Array of args items from the tile entry |
|||
:returns: None |
|||
""" |
|||
self.args = args |
|||
|
|||
@property |
|||
def pulls_fd(self): |
|||
return self._pulls_fd |
|||
|
|||
def decode(self, buffer): |
|||
""" |
|||
Override to perform the decoding process. |
|||
|
|||
:param buffer: A bytes object with the data to be decoded. |
|||
:returns: A tuple of ``(bytes consumed, errcode)``. |
|||
If finished with decoding return <0 for the bytes consumed. |
|||
Err codes are from :data:`.ImageFile.ERRORS`. |
|||
""" |
|||
raise NotImplementedError() |
|||
|
|||
def cleanup(self): |
|||
""" |
|||
Override to perform decoder specific cleanup |
|||
|
|||
:returns: None |
|||
""" |
|||
pass |
|||
|
|||
def setfd(self, fd): |
|||
""" |
|||
Called from ImageFile to set the python file-like object |
|||
|
|||
:param fd: A python file-like object |
|||
:returns: None |
|||
""" |
|||
self.fd = fd |
|||
|
|||
def setimage(self, im, extents=None): |
|||
""" |
|||
Called from ImageFile to set the core output image for the decoder |
|||
|
|||
:param im: A core image object |
|||
:param extents: a 4 tuple of (x0, y0, x1, y1) defining the rectangle |
|||
for this tile |
|||
:returns: None |
|||
""" |
|||
|
|||
# following c code |
|||
self.im = im |
|||
|
|||
if extents: |
|||
(x0, y0, x1, y1) = extents |
|||
else: |
|||
(x0, y0, x1, y1) = (0, 0, 0, 0) |
|||
|
|||
if x0 == 0 and x1 == 0: |
|||
self.state.xsize, self.state.ysize = self.im.size |
|||
else: |
|||
self.state.xoff = x0 |
|||
self.state.yoff = y0 |
|||
self.state.xsize = x1 - x0 |
|||
self.state.ysize = y1 - y0 |
|||
|
|||
if self.state.xsize <= 0 or self.state.ysize <= 0: |
|||
raise ValueError("Size cannot be negative") |
|||
|
|||
if ( |
|||
self.state.xsize + self.state.xoff > self.im.size[0] |
|||
or self.state.ysize + self.state.yoff > self.im.size[1] |
|||
): |
|||
raise ValueError("Tile cannot extend outside image") |
|||
|
|||
def set_as_raw(self, data, rawmode=None): |
|||
""" |
|||
Convenience method to set the internal image from a stream of raw data |
|||
|
|||
:param data: Bytes to be set |
|||
:param rawmode: The rawmode to be used for the decoder. |
|||
If not specified, it will default to the mode of the image |
|||
:returns: None |
|||
""" |
|||
|
|||
if not rawmode: |
|||
rawmode = self.mode |
|||
d = Image._getdecoder(self.mode, "raw", (rawmode)) |
|||
d.setimage(self.im, self.state.extents()) |
|||
s = d.decode(data) |
|||
|
|||
if s[0] >= 0: |
|||
raise ValueError("not enough image data") |
|||
if s[1] != 0: |
|||
raise ValueError("cannot decode image data") |
@ -0,0 +1,534 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# standard filters |
|||
# |
|||
# History: |
|||
# 1995-11-27 fl Created |
|||
# 2002-06-08 fl Added rank and mode filters |
|||
# 2003-09-15 fl Fixed rank calculation in rank filter; added expand call |
|||
# |
|||
# Copyright (c) 1997-2003 by Secret Labs AB. |
|||
# Copyright (c) 1995-2002 by Fredrik Lundh. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
import functools |
|||
|
|||
try: |
|||
import numpy |
|||
except ImportError: # pragma: no cover |
|||
numpy = None |
|||
|
|||
|
|||
class Filter: |
|||
pass |
|||
|
|||
|
|||
class MultibandFilter(Filter): |
|||
pass |
|||
|
|||
|
|||
class BuiltinFilter(MultibandFilter): |
|||
def filter(self, image): |
|||
if image.mode == "P": |
|||
raise ValueError("cannot filter palette images") |
|||
return image.filter(*self.filterargs) |
|||
|
|||
|
|||
class Kernel(BuiltinFilter): |
|||
""" |
|||
Create a convolution kernel. The current version only |
|||
supports 3x3 and 5x5 integer and floating point kernels. |
|||
|
|||
In the current version, kernels can only be applied to |
|||
"L" and "RGB" images. |
|||
|
|||
:param size: Kernel size, given as (width, height). In the current |
|||
version, this must be (3,3) or (5,5). |
|||
:param kernel: A sequence containing kernel weights. |
|||
:param scale: Scale factor. If given, the result for each pixel is |
|||
divided by this value. The default is the sum of the |
|||
kernel weights. |
|||
:param offset: Offset. If given, this value is added to the result, |
|||
after it has been divided by the scale factor. |
|||
""" |
|||
|
|||
name = "Kernel" |
|||
|
|||
def __init__(self, size, kernel, scale=None, offset=0): |
|||
if scale is None: |
|||
# default scale is sum of kernel |
|||
scale = functools.reduce(lambda a, b: a + b, kernel) |
|||
if size[0] * size[1] != len(kernel): |
|||
raise ValueError("not enough coefficients in kernel") |
|||
self.filterargs = size, scale, offset, kernel |
|||
|
|||
|
|||
class RankFilter(Filter): |
|||
""" |
|||
Create a rank filter. The rank filter sorts all pixels in |
|||
a window of the given size, and returns the ``rank``'th value. |
|||
|
|||
:param size: The kernel size, in pixels. |
|||
:param rank: What pixel value to pick. Use 0 for a min filter, |
|||
``size * size / 2`` for a median filter, ``size * size - 1`` |
|||
for a max filter, etc. |
|||
""" |
|||
|
|||
name = "Rank" |
|||
|
|||
def __init__(self, size, rank): |
|||
self.size = size |
|||
self.rank = rank |
|||
|
|||
def filter(self, image): |
|||
if image.mode == "P": |
|||
raise ValueError("cannot filter palette images") |
|||
image = image.expand(self.size // 2, self.size // 2) |
|||
return image.rankfilter(self.size, self.rank) |
|||
|
|||
|
|||
class MedianFilter(RankFilter): |
|||
""" |
|||
Create a median filter. Picks the median pixel value in a window with the |
|||
given size. |
|||
|
|||
:param size: The kernel size, in pixels. |
|||
""" |
|||
|
|||
name = "Median" |
|||
|
|||
def __init__(self, size=3): |
|||
self.size = size |
|||
self.rank = size * size // 2 |
|||
|
|||
|
|||
class MinFilter(RankFilter): |
|||
""" |
|||
Create a min filter. Picks the lowest pixel value in a window with the |
|||
given size. |
|||
|
|||
:param size: The kernel size, in pixels. |
|||
""" |
|||
|
|||
name = "Min" |
|||
|
|||
def __init__(self, size=3): |
|||
self.size = size |
|||
self.rank = 0 |
|||
|
|||
|
|||
class MaxFilter(RankFilter): |
|||
""" |
|||
Create a max filter. Picks the largest pixel value in a window with the |
|||
given size. |
|||
|
|||
:param size: The kernel size, in pixels. |
|||
""" |
|||
|
|||
name = "Max" |
|||
|
|||
def __init__(self, size=3): |
|||
self.size = size |
|||
self.rank = size * size - 1 |
|||
|
|||
|
|||
class ModeFilter(Filter): |
|||
""" |
|||
Create a mode filter. Picks the most frequent pixel value in a box with the |
|||
given size. Pixel values that occur only once or twice are ignored; if no |
|||
pixel value occurs more than twice, the original pixel value is preserved. |
|||
|
|||
:param size: The kernel size, in pixels. |
|||
""" |
|||
|
|||
name = "Mode" |
|||
|
|||
def __init__(self, size=3): |
|||
self.size = size |
|||
|
|||
def filter(self, image): |
|||
return image.modefilter(self.size) |
|||
|
|||
|
|||
class GaussianBlur(MultibandFilter): |
|||
"""Gaussian blur filter. |
|||
|
|||
:param radius: Blur radius. |
|||
""" |
|||
|
|||
name = "GaussianBlur" |
|||
|
|||
def __init__(self, radius=2): |
|||
self.radius = radius |
|||
|
|||
def filter(self, image): |
|||
return image.gaussian_blur(self.radius) |
|||
|
|||
|
|||
class BoxBlur(MultibandFilter): |
|||
"""Blurs the image by setting each pixel to the average value of the pixels |
|||
in a square box extending radius pixels in each direction. |
|||
Supports float radius of arbitrary size. Uses an optimized implementation |
|||
which runs in linear time relative to the size of the image |
|||
for any radius value. |
|||
|
|||
:param radius: Size of the box in one direction. Radius 0 does not blur, |
|||
returns an identical image. Radius 1 takes 1 pixel |
|||
in each direction, i.e. 9 pixels in total. |
|||
""" |
|||
|
|||
name = "BoxBlur" |
|||
|
|||
def __init__(self, radius): |
|||
self.radius = radius |
|||
|
|||
def filter(self, image): |
|||
return image.box_blur(self.radius) |
|||
|
|||
|
|||
class UnsharpMask(MultibandFilter): |
|||
"""Unsharp mask filter. |
|||
|
|||
See Wikipedia's entry on `digital unsharp masking`_ for an explanation of |
|||
the parameters. |
|||
|
|||
:param radius: Blur Radius |
|||
:param percent: Unsharp strength, in percent |
|||
:param threshold: Threshold controls the minimum brightness change that |
|||
will be sharpened |
|||
|
|||
.. _digital unsharp masking: https://en.wikipedia.org/wiki/Unsharp_masking#Digital_unsharp_masking |
|||
|
|||
""" # noqa: E501 |
|||
|
|||
name = "UnsharpMask" |
|||
|
|||
def __init__(self, radius=2, percent=150, threshold=3): |
|||
self.radius = radius |
|||
self.percent = percent |
|||
self.threshold = threshold |
|||
|
|||
def filter(self, image): |
|||
return image.unsharp_mask(self.radius, self.percent, self.threshold) |
|||
|
|||
|
|||
class BLUR(BuiltinFilter): |
|||
name = "Blur" |
|||
# fmt: off |
|||
filterargs = (5, 5), 16, 0, ( |
|||
1, 1, 1, 1, 1, |
|||
1, 0, 0, 0, 1, |
|||
1, 0, 0, 0, 1, |
|||
1, 0, 0, 0, 1, |
|||
1, 1, 1, 1, 1, |
|||
) |
|||
# fmt: on |
|||
|
|||
|
|||
class CONTOUR(BuiltinFilter): |
|||
name = "Contour" |
|||
# fmt: off |
|||
filterargs = (3, 3), 1, 255, ( |
|||
-1, -1, -1, |
|||
-1, 8, -1, |
|||
-1, -1, -1, |
|||
) |
|||
# fmt: on |
|||
|
|||
|
|||
class DETAIL(BuiltinFilter): |
|||
name = "Detail" |
|||
# fmt: off |
|||
filterargs = (3, 3), 6, 0, ( |
|||
0, -1, 0, |
|||
-1, 10, -1, |
|||
0, -1, 0, |
|||
) |
|||
# fmt: on |
|||
|
|||
|
|||
class EDGE_ENHANCE(BuiltinFilter): |
|||
name = "Edge-enhance" |
|||
# fmt: off |
|||
filterargs = (3, 3), 2, 0, ( |
|||
-1, -1, -1, |
|||
-1, 10, -1, |
|||
-1, -1, -1, |
|||
) |
|||
# fmt: on |
|||
|
|||
|
|||
class EDGE_ENHANCE_MORE(BuiltinFilter): |
|||
name = "Edge-enhance More" |
|||
# fmt: off |
|||
filterargs = (3, 3), 1, 0, ( |
|||
-1, -1, -1, |
|||
-1, 9, -1, |
|||
-1, -1, -1, |
|||
) |
|||
# fmt: on |
|||
|
|||
|
|||
class EMBOSS(BuiltinFilter): |
|||
name = "Emboss" |
|||
# fmt: off |
|||
filterargs = (3, 3), 1, 128, ( |
|||
-1, 0, 0, |
|||
0, 1, 0, |
|||
0, 0, 0, |
|||
) |
|||
# fmt: on |
|||
|
|||
|
|||
class FIND_EDGES(BuiltinFilter): |
|||
name = "Find Edges" |
|||
# fmt: off |
|||
filterargs = (3, 3), 1, 0, ( |
|||
-1, -1, -1, |
|||
-1, 8, -1, |
|||
-1, -1, -1, |
|||
) |
|||
# fmt: on |
|||
|
|||
|
|||
class SHARPEN(BuiltinFilter): |
|||
name = "Sharpen" |
|||
# fmt: off |
|||
filterargs = (3, 3), 16, 0, ( |
|||
-2, -2, -2, |
|||
-2, 32, -2, |
|||
-2, -2, -2, |
|||
) |
|||
# fmt: on |
|||
|
|||
|
|||
class SMOOTH(BuiltinFilter): |
|||
name = "Smooth" |
|||
# fmt: off |
|||
filterargs = (3, 3), 13, 0, ( |
|||
1, 1, 1, |
|||
1, 5, 1, |
|||
1, 1, 1, |
|||
) |
|||
# fmt: on |
|||
|
|||
|
|||
class SMOOTH_MORE(BuiltinFilter): |
|||
name = "Smooth More" |
|||
# fmt: off |
|||
filterargs = (5, 5), 100, 0, ( |
|||
1, 1, 1, 1, 1, |
|||
1, 5, 5, 5, 1, |
|||
1, 5, 44, 5, 1, |
|||
1, 5, 5, 5, 1, |
|||
1, 1, 1, 1, 1, |
|||
) |
|||
# fmt: on |
|||
|
|||
|
|||
class Color3DLUT(MultibandFilter): |
|||
"""Three-dimensional color lookup table. |
|||
|
|||
Transforms 3-channel pixels using the values of the channels as coordinates |
|||
in the 3D lookup table and interpolating the nearest elements. |
|||
|
|||
This method allows you to apply almost any color transformation |
|||
in constant time by using pre-calculated decimated tables. |
|||
|
|||
.. versionadded:: 5.2.0 |
|||
|
|||
:param size: Size of the table. One int or tuple of (int, int, int). |
|||
Minimal size in any dimension is 2, maximum is 65. |
|||
:param table: Flat lookup table. A list of ``channels * size**3`` |
|||
float elements or a list of ``size**3`` channels-sized |
|||
tuples with floats. Channels are changed first, |
|||
then first dimension, then second, then third. |
|||
Value 0.0 corresponds lowest value of output, 1.0 highest. |
|||
:param channels: Number of channels in the table. Could be 3 or 4. |
|||
Default is 3. |
|||
:param target_mode: A mode for the result image. Should have not less |
|||
than ``channels`` channels. Default is ``None``, |
|||
which means that mode wouldn't be changed. |
|||
""" |
|||
|
|||
name = "Color 3D LUT" |
|||
|
|||
def __init__(self, size, table, channels=3, target_mode=None, **kwargs): |
|||
if channels not in (3, 4): |
|||
raise ValueError("Only 3 or 4 output channels are supported") |
|||
self.size = size = self._check_size(size) |
|||
self.channels = channels |
|||
self.mode = target_mode |
|||
|
|||
# Hidden flag `_copy_table=False` could be used to avoid extra copying |
|||
# of the table if the table is specially made for the constructor. |
|||
copy_table = kwargs.get("_copy_table", True) |
|||
items = size[0] * size[1] * size[2] |
|||
wrong_size = False |
|||
|
|||
if numpy and isinstance(table, numpy.ndarray): |
|||
if copy_table: |
|||
table = table.copy() |
|||
|
|||
if table.shape in [ |
|||
(items * channels,), |
|||
(items, channels), |
|||
(size[2], size[1], size[0], channels), |
|||
]: |
|||
table = table.reshape(items * channels) |
|||
else: |
|||
wrong_size = True |
|||
|
|||
else: |
|||
if copy_table: |
|||
table = list(table) |
|||
|
|||
# Convert to a flat list |
|||
if table and isinstance(table[0], (list, tuple)): |
|||
table, raw_table = [], table |
|||
for pixel in raw_table: |
|||
if len(pixel) != channels: |
|||
raise ValueError( |
|||
"The elements of the table should " |
|||
"have a length of {}.".format(channels) |
|||
) |
|||
table.extend(pixel) |
|||
|
|||
if wrong_size or len(table) != items * channels: |
|||
raise ValueError( |
|||
"The table should have either channels * size**3 float items " |
|||
"or size**3 items of channels-sized tuples with floats. " |
|||
f"Table should be: {channels}x{size[0]}x{size[1]}x{size[2]}. " |
|||
f"Actual length: {len(table)}" |
|||
) |
|||
self.table = table |
|||
|
|||
@staticmethod |
|||
def _check_size(size): |
|||
try: |
|||
_, _, _ = size |
|||
except ValueError as e: |
|||
raise ValueError( |
|||
"Size should be either an integer or a tuple of three integers." |
|||
) from e |
|||
except TypeError: |
|||
size = (size, size, size) |
|||
size = [int(x) for x in size] |
|||
for size1D in size: |
|||
if not 2 <= size1D <= 65: |
|||
raise ValueError("Size should be in [2, 65] range.") |
|||
return size |
|||
|
|||
@classmethod |
|||
def generate(cls, size, callback, channels=3, target_mode=None): |
|||
"""Generates new LUT using provided callback. |
|||
|
|||
:param size: Size of the table. Passed to the constructor. |
|||
:param callback: Function with three parameters which correspond |
|||
three color channels. Will be called ``size**3`` |
|||
times with values from 0.0 to 1.0 and should return |
|||
a tuple with ``channels`` elements. |
|||
:param channels: The number of channels which should return callback. |
|||
:param target_mode: Passed to the constructor of the resulting |
|||
lookup table. |
|||
""" |
|||
size1D, size2D, size3D = cls._check_size(size) |
|||
if channels not in (3, 4): |
|||
raise ValueError("Only 3 or 4 output channels are supported") |
|||
|
|||
table = [0] * (size1D * size2D * size3D * channels) |
|||
idx_out = 0 |
|||
for b in range(size3D): |
|||
for g in range(size2D): |
|||
for r in range(size1D): |
|||
table[idx_out : idx_out + channels] = callback( |
|||
r / (size1D - 1), g / (size2D - 1), b / (size3D - 1) |
|||
) |
|||
idx_out += channels |
|||
|
|||
return cls( |
|||
(size1D, size2D, size3D), |
|||
table, |
|||
channels=channels, |
|||
target_mode=target_mode, |
|||
_copy_table=False, |
|||
) |
|||
|
|||
def transform(self, callback, with_normals=False, channels=None, target_mode=None): |
|||
"""Transforms the table values using provided callback and returns |
|||
a new LUT with altered values. |
|||
|
|||
:param callback: A function which takes old lookup table values |
|||
and returns a new set of values. The number |
|||
of arguments which function should take is |
|||
``self.channels`` or ``3 + self.channels`` |
|||
if ``with_normals`` flag is set. |
|||
Should return a tuple of ``self.channels`` or |
|||
``channels`` elements if it is set. |
|||
:param with_normals: If true, ``callback`` will be called with |
|||
coordinates in the color cube as the first |
|||
three arguments. Otherwise, ``callback`` |
|||
will be called only with actual color values. |
|||
:param channels: The number of channels in the resulting lookup table. |
|||
:param target_mode: Passed to the constructor of the resulting |
|||
lookup table. |
|||
""" |
|||
if channels not in (None, 3, 4): |
|||
raise ValueError("Only 3 or 4 output channels are supported") |
|||
ch_in = self.channels |
|||
ch_out = channels or ch_in |
|||
size1D, size2D, size3D = self.size |
|||
|
|||
table = [0] * (size1D * size2D * size3D * ch_out) |
|||
idx_in = 0 |
|||
idx_out = 0 |
|||
for b in range(size3D): |
|||
for g in range(size2D): |
|||
for r in range(size1D): |
|||
values = self.table[idx_in : idx_in + ch_in] |
|||
if with_normals: |
|||
values = callback( |
|||
r / (size1D - 1), |
|||
g / (size2D - 1), |
|||
b / (size3D - 1), |
|||
*values, |
|||
) |
|||
else: |
|||
values = callback(*values) |
|||
table[idx_out : idx_out + ch_out] = values |
|||
idx_in += ch_in |
|||
idx_out += ch_out |
|||
|
|||
return type(self)( |
|||
self.size, |
|||
table, |
|||
channels=ch_out, |
|||
target_mode=target_mode or self.mode, |
|||
_copy_table=False, |
|||
) |
|||
|
|||
def __repr__(self): |
|||
r = [ |
|||
f"{self.__class__.__name__} from {self.table.__class__.__name__}", |
|||
"size={:d}x{:d}x{:d}".format(*self.size), |
|||
f"channels={self.channels:d}", |
|||
] |
|||
if self.mode: |
|||
r.append(f"target_mode={self.mode}") |
|||
return "<{}>".format(" ".join(r)) |
|||
|
|||
def filter(self, image): |
|||
from . import Image |
|||
|
|||
return image.color_lut_3d( |
|||
self.mode or image.mode, |
|||
Image.LINEAR, |
|||
self.channels, |
|||
self.size[0], |
|||
self.size[1], |
|||
self.size[2], |
|||
self.table, |
|||
) |
File diff suppressed because it is too large
@ -0,0 +1,120 @@ |
|||
# |
|||
# The Python Imaging Library |
|||
# $Id$ |
|||
# |
|||
# screen grabber |
|||
# |
|||
# History: |
|||
# 2001-04-26 fl created |
|||
# 2001-09-17 fl use builtin driver, if present |
|||
# 2002-11-19 fl added grabclipboard support |
|||
# |
|||
# Copyright (c) 2001-2002 by Secret Labs AB |
|||
# Copyright (c) 2001-2002 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
import sys |
|||
|
|||
from . import Image |
|||
|
|||
if sys.platform == "darwin": |
|||
import os |
|||
import subprocess |
|||
import tempfile |
|||
|
|||
|
|||
def grab(bbox=None, include_layered_windows=False, all_screens=False, xdisplay=None): |
|||
if xdisplay is None: |
|||
if sys.platform == "darwin": |
|||
fh, filepath = tempfile.mkstemp(".png") |
|||
os.close(fh) |
|||
subprocess.call(["screencapture", "-x", filepath]) |
|||
im = Image.open(filepath) |
|||
im.load() |
|||
os.unlink(filepath) |
|||
if bbox: |
|||
im_cropped = im.crop(bbox) |
|||
im.close() |
|||
return im_cropped |
|||
return im |
|||
elif sys.platform == "win32": |
|||
offset, size, data = Image.core.grabscreen_win32( |
|||
include_layered_windows, all_screens |
|||
) |
|||
im = Image.frombytes( |
|||
"RGB", |
|||
size, |
|||
data, |
|||
# RGB, 32-bit line padding, origin lower left corner |
|||
"raw", |
|||
"BGR", |
|||
(size[0] * 3 + 3) & -4, |
|||
-1, |
|||
) |
|||
if bbox: |
|||
x0, y0 = offset |
|||
left, top, right, bottom = bbox |
|||
im = im.crop((left - x0, top - y0, right - x0, bottom - y0)) |
|||
return im |
|||
# use xdisplay=None for default display on non-win32/macOS systems |
|||
if not Image.core.HAVE_XCB: |
|||
raise OSError("Pillow was built without XCB support") |
|||
size, data = Image.core.grabscreen_x11(xdisplay) |
|||
im = Image.frombytes("RGB", size, data, "raw", "BGRX", size[0] * 4, 1) |
|||
if bbox: |
|||
im = im.crop(bbox) |
|||
return im |
|||
|
|||
|
|||
def grabclipboard(): |
|||
if sys.platform == "darwin": |
|||
fh, filepath = tempfile.mkstemp(".jpg") |
|||
os.close(fh) |
|||
commands = [ |
|||
'set theFile to (open for access POSIX file "' |
|||
+ filepath |
|||
+ '" with write permission)', |
|||
"try", |
|||
" write (the clipboard as JPEG picture) to theFile", |
|||
"end try", |
|||
"close access theFile", |
|||
] |
|||
script = ["osascript"] |
|||
for command in commands: |
|||
script += ["-e", command] |
|||
subprocess.call(script) |
|||
|
|||
im = None |
|||
if os.stat(filepath).st_size != 0: |
|||
im = Image.open(filepath) |
|||
im.load() |
|||
os.unlink(filepath) |
|||
return im |
|||
elif sys.platform == "win32": |
|||
fmt, data = Image.core.grabclipboard_win32() |
|||
if fmt == "file": # CF_HDROP |
|||
import struct |
|||
|
|||
o = struct.unpack_from("I", data)[0] |
|||
if data[16] != 0: |
|||
files = data[o:].decode("utf-16le").split("\0") |
|||
else: |
|||
files = data[o:].decode("mbcs").split("\0") |
|||
return files[: files.index("")] |
|||
if isinstance(data, bytes): |
|||
import io |
|||
|
|||
data = io.BytesIO(data) |
|||
if fmt == "png": |
|||
from . import PngImagePlugin |
|||
|
|||
return PngImagePlugin.PngImageFile(data) |
|||
elif fmt == "DIB": |
|||
from . import BmpImagePlugin |
|||
|
|||
return BmpImagePlugin.DibImageFile(data) |
|||
return None |
|||
else: |
|||
raise NotImplementedError("ImageGrab.grabclipboard() is macOS and Windows only") |
@ -0,0 +1,253 @@ |
|||
# |
|||
# The Python Imaging Library |
|||
# $Id$ |
|||
# |
|||
# a simple math add-on for the Python Imaging Library |
|||
# |
|||
# History: |
|||
# 1999-02-15 fl Original PIL Plus release |
|||
# 2005-05-05 fl Simplified and cleaned up for PIL 1.1.6 |
|||
# 2005-09-12 fl Fixed int() and float() for Python 2.4.1 |
|||
# |
|||
# Copyright (c) 1999-2005 by Secret Labs AB |
|||
# Copyright (c) 2005 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
import builtins |
|||
|
|||
from . import Image, _imagingmath |
|||
|
|||
VERBOSE = 0 |
|||
|
|||
|
|||
def _isconstant(v): |
|||
return isinstance(v, (int, float)) |
|||
|
|||
|
|||
class _Operand: |
|||
"""Wraps an image operand, providing standard operators""" |
|||
|
|||
def __init__(self, im): |
|||
self.im = im |
|||
|
|||
def __fixup(self, im1): |
|||
# convert image to suitable mode |
|||
if isinstance(im1, _Operand): |
|||
# argument was an image. |
|||
if im1.im.mode in ("1", "L"): |
|||
return im1.im.convert("I") |
|||
elif im1.im.mode in ("I", "F"): |
|||
return im1.im |
|||
else: |
|||
raise ValueError(f"unsupported mode: {im1.im.mode}") |
|||
else: |
|||
# argument was a constant |
|||
if _isconstant(im1) and self.im.mode in ("1", "L", "I"): |
|||
return Image.new("I", self.im.size, im1) |
|||
else: |
|||
return Image.new("F", self.im.size, im1) |
|||
|
|||
def apply(self, op, im1, im2=None, mode=None): |
|||
im1 = self.__fixup(im1) |
|||
if im2 is None: |
|||
# unary operation |
|||
out = Image.new(mode or im1.mode, im1.size, None) |
|||
im1.load() |
|||
try: |
|||
op = getattr(_imagingmath, op + "_" + im1.mode) |
|||
except AttributeError as e: |
|||
raise TypeError(f"bad operand type for '{op}'") from e |
|||
_imagingmath.unop(op, out.im.id, im1.im.id) |
|||
else: |
|||
# binary operation |
|||
im2 = self.__fixup(im2) |
|||
if im1.mode != im2.mode: |
|||
# convert both arguments to floating point |
|||
if im1.mode != "F": |
|||
im1 = im1.convert("F") |
|||
if im2.mode != "F": |
|||
im2 = im2.convert("F") |
|||
if im1.mode != im2.mode: |
|||
raise ValueError("mode mismatch") |
|||
if im1.size != im2.size: |
|||
# crop both arguments to a common size |
|||
size = (min(im1.size[0], im2.size[0]), min(im1.size[1], im2.size[1])) |
|||
if im1.size != size: |
|||
im1 = im1.crop((0, 0) + size) |
|||
if im2.size != size: |
|||
im2 = im2.crop((0, 0) + size) |
|||
out = Image.new(mode or im1.mode, size, None) |
|||
else: |
|||
out = Image.new(mode or im1.mode, im1.size, None) |
|||
im1.load() |
|||
im2.load() |
|||
try: |
|||
op = getattr(_imagingmath, op + "_" + im1.mode) |
|||
except AttributeError as e: |
|||
raise TypeError(f"bad operand type for '{op}'") from e |
|||
_imagingmath.binop(op, out.im.id, im1.im.id, im2.im.id) |
|||
return _Operand(out) |
|||
|
|||
# unary operators |
|||
def __bool__(self): |
|||
# an image is "true" if it contains at least one non-zero pixel |
|||
return self.im.getbbox() is not None |
|||
|
|||
def __abs__(self): |
|||
return self.apply("abs", self) |
|||
|
|||
def __pos__(self): |
|||
return self |
|||
|
|||
def __neg__(self): |
|||
return self.apply("neg", self) |
|||
|
|||
# binary operators |
|||
def __add__(self, other): |
|||
return self.apply("add", self, other) |
|||
|
|||
def __radd__(self, other): |
|||
return self.apply("add", other, self) |
|||
|
|||
def __sub__(self, other): |
|||
return self.apply("sub", self, other) |
|||
|
|||
def __rsub__(self, other): |
|||
return self.apply("sub", other, self) |
|||
|
|||
def __mul__(self, other): |
|||
return self.apply("mul", self, other) |
|||
|
|||
def __rmul__(self, other): |
|||
return self.apply("mul", other, self) |
|||
|
|||
def __truediv__(self, other): |
|||
return self.apply("div", self, other) |
|||
|
|||
def __rtruediv__(self, other): |
|||
return self.apply("div", other, self) |
|||
|
|||
def __mod__(self, other): |
|||
return self.apply("mod", self, other) |
|||
|
|||
def __rmod__(self, other): |
|||
return self.apply("mod", other, self) |
|||
|
|||
def __pow__(self, other): |
|||
return self.apply("pow", self, other) |
|||
|
|||
def __rpow__(self, other): |
|||
return self.apply("pow", other, self) |
|||
|
|||
# bitwise |
|||
def __invert__(self): |
|||
return self.apply("invert", self) |
|||
|
|||
def __and__(self, other): |
|||
return self.apply("and", self, other) |
|||
|
|||
def __rand__(self, other): |
|||
return self.apply("and", other, self) |
|||
|
|||
def __or__(self, other): |
|||
return self.apply("or", self, other) |
|||
|
|||
def __ror__(self, other): |
|||
return self.apply("or", other, self) |
|||
|
|||
def __xor__(self, other): |
|||
return self.apply("xor", self, other) |
|||
|
|||
def __rxor__(self, other): |
|||
return self.apply("xor", other, self) |
|||
|
|||
def __lshift__(self, other): |
|||
return self.apply("lshift", self, other) |
|||
|
|||
def __rshift__(self, other): |
|||
return self.apply("rshift", self, other) |
|||
|
|||
# logical |
|||
def __eq__(self, other): |
|||
return self.apply("eq", self, other) |
|||
|
|||
def __ne__(self, other): |
|||
return self.apply("ne", self, other) |
|||
|
|||
def __lt__(self, other): |
|||
return self.apply("lt", self, other) |
|||
|
|||
def __le__(self, other): |
|||
return self.apply("le", self, other) |
|||
|
|||
def __gt__(self, other): |
|||
return self.apply("gt", self, other) |
|||
|
|||
def __ge__(self, other): |
|||
return self.apply("ge", self, other) |
|||
|
|||
|
|||
# conversions |
|||
def imagemath_int(self): |
|||
return _Operand(self.im.convert("I")) |
|||
|
|||
|
|||
def imagemath_float(self): |
|||
return _Operand(self.im.convert("F")) |
|||
|
|||
|
|||
# logical |
|||
def imagemath_equal(self, other): |
|||
return self.apply("eq", self, other, mode="I") |
|||
|
|||
|
|||
def imagemath_notequal(self, other): |
|||
return self.apply("ne", self, other, mode="I") |
|||
|
|||
|
|||
def imagemath_min(self, other): |
|||
return self.apply("min", self, other) |
|||
|
|||
|
|||
def imagemath_max(self, other): |
|||
return self.apply("max", self, other) |
|||
|
|||
|
|||
def imagemath_convert(self, mode): |
|||
return _Operand(self.im.convert(mode)) |
|||
|
|||
|
|||
ops = {} |
|||
for k, v in list(globals().items()): |
|||
if k[:10] == "imagemath_": |
|||
ops[k[10:]] = v |
|||
|
|||
|
|||
def eval(expression, _dict={}, **kw): |
|||
""" |
|||
Evaluates an image expression. |
|||
|
|||
:param expression: A string containing a Python-style expression. |
|||
:param options: Values to add to the evaluation context. You |
|||
can either use a dictionary, or one or more keyword |
|||
arguments. |
|||
:return: The evaluated expression. This is usually an image object, but can |
|||
also be an integer, a floating point value, or a pixel tuple, |
|||
depending on the expression. |
|||
""" |
|||
|
|||
# build execution namespace |
|||
args = ops.copy() |
|||
args.update(_dict) |
|||
args.update(kw) |
|||
for k, v in list(args.items()): |
|||
if hasattr(v, "im"): |
|||
args[k] = _Operand(v) |
|||
|
|||
out = builtins.eval(expression, args) |
|||
try: |
|||
return out.im |
|||
except AttributeError: |
|||
return out |
@ -0,0 +1,64 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# standard mode descriptors |
|||
# |
|||
# History: |
|||
# 2006-03-20 fl Added |
|||
# |
|||
# Copyright (c) 2006 by Secret Labs AB. |
|||
# Copyright (c) 2006 by Fredrik Lundh. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
# mode descriptor cache |
|||
_modes = None |
|||
|
|||
|
|||
class ModeDescriptor: |
|||
"""Wrapper for mode strings.""" |
|||
|
|||
def __init__(self, mode, bands, basemode, basetype): |
|||
self.mode = mode |
|||
self.bands = bands |
|||
self.basemode = basemode |
|||
self.basetype = basetype |
|||
|
|||
def __str__(self): |
|||
return self.mode |
|||
|
|||
|
|||
def getmode(mode): |
|||
"""Gets a mode descriptor for the given mode.""" |
|||
global _modes |
|||
if not _modes: |
|||
# initialize mode cache |
|||
|
|||
from . import Image |
|||
|
|||
modes = {} |
|||
# core modes |
|||
for m, (basemode, basetype, bands) in Image._MODEINFO.items(): |
|||
modes[m] = ModeDescriptor(m, bands, basemode, basetype) |
|||
# extra experimental modes |
|||
modes["RGBa"] = ModeDescriptor("RGBa", ("R", "G", "B", "a"), "RGB", "L") |
|||
modes["LA"] = ModeDescriptor("LA", ("L", "A"), "L", "L") |
|||
modes["La"] = ModeDescriptor("La", ("L", "a"), "L", "L") |
|||
modes["PA"] = ModeDescriptor("PA", ("P", "A"), "RGB", "L") |
|||
# mapping modes |
|||
for i16mode in ( |
|||
"I;16", |
|||
"I;16S", |
|||
"I;16L", |
|||
"I;16LS", |
|||
"I;16B", |
|||
"I;16BS", |
|||
"I;16N", |
|||
"I;16NS", |
|||
): |
|||
modes[i16mode] = ModeDescriptor(i16mode, ("I",), "L", "L") |
|||
# set global mode cache atomically |
|||
_modes = modes |
|||
return _modes[mode] |
@ -0,0 +1,245 @@ |
|||
# A binary morphology add-on for the Python Imaging Library |
|||
# |
|||
# History: |
|||
# 2014-06-04 Initial version. |
|||
# |
|||
# Copyright (c) 2014 Dov Grobgeld <dov.grobgeld@gmail.com> |
|||
|
|||
import re |
|||
|
|||
from . import Image, _imagingmorph |
|||
|
|||
LUT_SIZE = 1 << 9 |
|||
|
|||
# fmt: off |
|||
ROTATION_MATRIX = [ |
|||
6, 3, 0, |
|||
7, 4, 1, |
|||
8, 5, 2, |
|||
] |
|||
MIRROR_MATRIX = [ |
|||
2, 1, 0, |
|||
5, 4, 3, |
|||
8, 7, 6, |
|||
] |
|||
# fmt: on |
|||
|
|||
|
|||
class LutBuilder: |
|||
"""A class for building a MorphLut from a descriptive language |
|||
|
|||
The input patterns is a list of a strings sequences like these:: |
|||
|
|||
4:(... |
|||
.1. |
|||
111)->1 |
|||
|
|||
(whitespaces including linebreaks are ignored). The option 4 |
|||
describes a series of symmetry operations (in this case a |
|||
4-rotation), the pattern is described by: |
|||
|
|||
- . or X - Ignore |
|||
- 1 - Pixel is on |
|||
- 0 - Pixel is off |
|||
|
|||
The result of the operation is described after "->" string. |
|||
|
|||
The default is to return the current pixel value, which is |
|||
returned if no other match is found. |
|||
|
|||
Operations: |
|||
|
|||
- 4 - 4 way rotation |
|||
- N - Negate |
|||
- 1 - Dummy op for no other operation (an op must always be given) |
|||
- M - Mirroring |
|||
|
|||
Example:: |
|||
|
|||
lb = LutBuilder(patterns = ["4:(... .1. 111)->1"]) |
|||
lut = lb.build_lut() |
|||
|
|||
""" |
|||
|
|||
def __init__(self, patterns=None, op_name=None): |
|||
if patterns is not None: |
|||
self.patterns = patterns |
|||
else: |
|||
self.patterns = [] |
|||
self.lut = None |
|||
if op_name is not None: |
|||
known_patterns = { |
|||
"corner": ["1:(... ... ...)->0", "4:(00. 01. ...)->1"], |
|||
"dilation4": ["4:(... .0. .1.)->1"], |
|||
"dilation8": ["4:(... .0. .1.)->1", "4:(... .0. ..1)->1"], |
|||
"erosion4": ["4:(... .1. .0.)->0"], |
|||
"erosion8": ["4:(... .1. .0.)->0", "4:(... .1. ..0)->0"], |
|||
"edge": [ |
|||
"1:(... ... ...)->0", |
|||
"4:(.0. .1. ...)->1", |
|||
"4:(01. .1. ...)->1", |
|||
], |
|||
} |
|||
if op_name not in known_patterns: |
|||
raise Exception("Unknown pattern " + op_name + "!") |
|||
|
|||
self.patterns = known_patterns[op_name] |
|||
|
|||
def add_patterns(self, patterns): |
|||
self.patterns += patterns |
|||
|
|||
def build_default_lut(self): |
|||
symbols = [0, 1] |
|||
m = 1 << 4 # pos of current pixel |
|||
self.lut = bytearray(symbols[(i & m) > 0] for i in range(LUT_SIZE)) |
|||
|
|||
def get_lut(self): |
|||
return self.lut |
|||
|
|||
def _string_permute(self, pattern, permutation): |
|||
"""string_permute takes a pattern and a permutation and returns the |
|||
string permuted according to the permutation list. |
|||
""" |
|||
assert len(permutation) == 9 |
|||
return "".join(pattern[p] for p in permutation) |
|||
|
|||
def _pattern_permute(self, basic_pattern, options, basic_result): |
|||
"""pattern_permute takes a basic pattern and its result and clones |
|||
the pattern according to the modifications described in the $options |
|||
parameter. It returns a list of all cloned patterns.""" |
|||
patterns = [(basic_pattern, basic_result)] |
|||
|
|||
# rotations |
|||
if "4" in options: |
|||
res = patterns[-1][1] |
|||
for i in range(4): |
|||
patterns.append( |
|||
(self._string_permute(patterns[-1][0], ROTATION_MATRIX), res) |
|||
) |
|||
# mirror |
|||
if "M" in options: |
|||
n = len(patterns) |
|||
for pattern, res in patterns[0:n]: |
|||
patterns.append((self._string_permute(pattern, MIRROR_MATRIX), res)) |
|||
|
|||
# negate |
|||
if "N" in options: |
|||
n = len(patterns) |
|||
for pattern, res in patterns[0:n]: |
|||
# Swap 0 and 1 |
|||
pattern = pattern.replace("0", "Z").replace("1", "0").replace("Z", "1") |
|||
res = 1 - int(res) |
|||
patterns.append((pattern, res)) |
|||
|
|||
return patterns |
|||
|
|||
def build_lut(self): |
|||
"""Compile all patterns into a morphology lut. |
|||
|
|||
TBD :Build based on (file) morphlut:modify_lut |
|||
""" |
|||
self.build_default_lut() |
|||
patterns = [] |
|||
|
|||
# Parse and create symmetries of the patterns strings |
|||
for p in self.patterns: |
|||
m = re.search(r"(\w*):?\s*\((.+?)\)\s*->\s*(\d)", p.replace("\n", "")) |
|||
if not m: |
|||
raise Exception('Syntax error in pattern "' + p + '"') |
|||
options = m.group(1) |
|||
pattern = m.group(2) |
|||
result = int(m.group(3)) |
|||
|
|||
# Get rid of spaces |
|||
pattern = pattern.replace(" ", "").replace("\n", "") |
|||
|
|||
patterns += self._pattern_permute(pattern, options, result) |
|||
|
|||
# compile the patterns into regular expressions for speed |
|||
for i, pattern in enumerate(patterns): |
|||
p = pattern[0].replace(".", "X").replace("X", "[01]") |
|||
p = re.compile(p) |
|||
patterns[i] = (p, pattern[1]) |
|||
|
|||
# Step through table and find patterns that match. |
|||
# Note that all the patterns are searched. The last one |
|||
# caught overrides |
|||
for i in range(LUT_SIZE): |
|||
# Build the bit pattern |
|||
bitpattern = bin(i)[2:] |
|||
bitpattern = ("0" * (9 - len(bitpattern)) + bitpattern)[::-1] |
|||
|
|||
for p, r in patterns: |
|||
if p.match(bitpattern): |
|||
self.lut[i] = [0, 1][r] |
|||
|
|||
return self.lut |
|||
|
|||
|
|||
class MorphOp: |
|||
"""A class for binary morphological operators""" |
|||
|
|||
def __init__(self, lut=None, op_name=None, patterns=None): |
|||
"""Create a binary morphological operator""" |
|||
self.lut = lut |
|||
if op_name is not None: |
|||
self.lut = LutBuilder(op_name=op_name).build_lut() |
|||
elif patterns is not None: |
|||
self.lut = LutBuilder(patterns=patterns).build_lut() |
|||
|
|||
def apply(self, image): |
|||
"""Run a single morphological operation on an image |
|||
|
|||
Returns a tuple of the number of changed pixels and the |
|||
morphed image""" |
|||
if self.lut is None: |
|||
raise Exception("No operator loaded") |
|||
|
|||
if image.mode != "L": |
|||
raise Exception("Image must be binary, meaning it must use mode L") |
|||
outimage = Image.new(image.mode, image.size, None) |
|||
count = _imagingmorph.apply(bytes(self.lut), image.im.id, outimage.im.id) |
|||
return count, outimage |
|||
|
|||
def match(self, image): |
|||
"""Get a list of coordinates matching the morphological operation on |
|||
an image. |
|||
|
|||
Returns a list of tuples of (x,y) coordinates |
|||
of all matching pixels. See :ref:`coordinate-system`.""" |
|||
if self.lut is None: |
|||
raise Exception("No operator loaded") |
|||
|
|||
if image.mode != "L": |
|||
raise Exception("Image must be binary, meaning it must use mode L") |
|||
return _imagingmorph.match(bytes(self.lut), image.im.id) |
|||
|
|||
def get_on_pixels(self, image): |
|||
"""Get a list of all turned on pixels in a binary image |
|||
|
|||
Returns a list of tuples of (x,y) coordinates |
|||
of all matching pixels. See :ref:`coordinate-system`.""" |
|||
|
|||
if image.mode != "L": |
|||
raise Exception("Image must be binary, meaning it must use mode L") |
|||
return _imagingmorph.get_on_pixels(image.im.id) |
|||
|
|||
def load_lut(self, filename): |
|||
"""Load an operator from an mrl file""" |
|||
with open(filename, "rb") as f: |
|||
self.lut = bytearray(f.read()) |
|||
|
|||
if len(self.lut) != LUT_SIZE: |
|||
self.lut = None |
|||
raise Exception("Wrong size operator file!") |
|||
|
|||
def save_lut(self, filename): |
|||
"""Save an operator to an mrl file""" |
|||
if self.lut is None: |
|||
raise Exception("No operator loaded") |
|||
with open(filename, "wb") as f: |
|||
f.write(self.lut) |
|||
|
|||
def set_lut(self, lut): |
|||
"""Set the lut from an external source""" |
|||
self.lut = lut |
@ -0,0 +1,558 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# standard image operations |
|||
# |
|||
# History: |
|||
# 2001-10-20 fl Created |
|||
# 2001-10-23 fl Added autocontrast operator |
|||
# 2001-12-18 fl Added Kevin's fit operator |
|||
# 2004-03-14 fl Fixed potential division by zero in equalize |
|||
# 2005-05-05 fl Fixed equalize for low number of values |
|||
# |
|||
# Copyright (c) 2001-2004 by Secret Labs AB |
|||
# Copyright (c) 2001-2004 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
import functools |
|||
import operator |
|||
|
|||
from . import Image |
|||
|
|||
# |
|||
# helpers |
|||
|
|||
|
|||
def _border(border): |
|||
if isinstance(border, tuple): |
|||
if len(border) == 2: |
|||
left, top = right, bottom = border |
|||
elif len(border) == 4: |
|||
left, top, right, bottom = border |
|||
else: |
|||
left = top = right = bottom = border |
|||
return left, top, right, bottom |
|||
|
|||
|
|||
def _color(color, mode): |
|||
if isinstance(color, str): |
|||
from . import ImageColor |
|||
|
|||
color = ImageColor.getcolor(color, mode) |
|||
return color |
|||
|
|||
|
|||
def _lut(image, lut): |
|||
if image.mode == "P": |
|||
# FIXME: apply to lookup table, not image data |
|||
raise NotImplementedError("mode P support coming soon") |
|||
elif image.mode in ("L", "RGB"): |
|||
if image.mode == "RGB" and len(lut) == 256: |
|||
lut = lut + lut + lut |
|||
return image.point(lut) |
|||
else: |
|||
raise OSError("not supported for this image mode") |
|||
|
|||
|
|||
# |
|||
# actions |
|||
|
|||
|
|||
def autocontrast(image, cutoff=0, ignore=None, mask=None): |
|||
""" |
|||
Maximize (normalize) image contrast. This function calculates a |
|||
histogram of the input image (or mask region), removes ``cutoff`` percent of the |
|||
lightest and darkest pixels from the histogram, and remaps the image |
|||
so that the darkest pixel becomes black (0), and the lightest |
|||
becomes white (255). |
|||
|
|||
:param image: The image to process. |
|||
:param cutoff: The percent to cut off from the histogram on the low and |
|||
high ends. Either a tuple of (low, high), or a single |
|||
number for both. |
|||
:param ignore: The background pixel value (use None for no background). |
|||
:param mask: Histogram used in contrast operation is computed using pixels |
|||
within the mask. If no mask is given the entire image is used |
|||
for histogram computation. |
|||
:return: An image. |
|||
""" |
|||
histogram = image.histogram(mask) |
|||
lut = [] |
|||
for layer in range(0, len(histogram), 256): |
|||
h = histogram[layer : layer + 256] |
|||
if ignore is not None: |
|||
# get rid of outliers |
|||
try: |
|||
h[ignore] = 0 |
|||
except TypeError: |
|||
# assume sequence |
|||
for ix in ignore: |
|||
h[ix] = 0 |
|||
if cutoff: |
|||
# cut off pixels from both ends of the histogram |
|||
if not isinstance(cutoff, tuple): |
|||
cutoff = (cutoff, cutoff) |
|||
# get number of pixels |
|||
n = 0 |
|||
for ix in range(256): |
|||
n = n + h[ix] |
|||
# remove cutoff% pixels from the low end |
|||
cut = n * cutoff[0] // 100 |
|||
for lo in range(256): |
|||
if cut > h[lo]: |
|||
cut = cut - h[lo] |
|||
h[lo] = 0 |
|||
else: |
|||
h[lo] -= cut |
|||
cut = 0 |
|||
if cut <= 0: |
|||
break |
|||
# remove cutoff% samples from the high end |
|||
cut = n * cutoff[1] // 100 |
|||
for hi in range(255, -1, -1): |
|||
if cut > h[hi]: |
|||
cut = cut - h[hi] |
|||
h[hi] = 0 |
|||
else: |
|||
h[hi] -= cut |
|||
cut = 0 |
|||
if cut <= 0: |
|||
break |
|||
# find lowest/highest samples after preprocessing |
|||
for lo in range(256): |
|||
if h[lo]: |
|||
break |
|||
for hi in range(255, -1, -1): |
|||
if h[hi]: |
|||
break |
|||
if hi <= lo: |
|||
# don't bother |
|||
lut.extend(list(range(256))) |
|||
else: |
|||
scale = 255.0 / (hi - lo) |
|||
offset = -lo * scale |
|||
for ix in range(256): |
|||
ix = int(ix * scale + offset) |
|||
if ix < 0: |
|||
ix = 0 |
|||
elif ix > 255: |
|||
ix = 255 |
|||
lut.append(ix) |
|||
return _lut(image, lut) |
|||
|
|||
|
|||
def colorize(image, black, white, mid=None, blackpoint=0, whitepoint=255, midpoint=127): |
|||
""" |
|||
Colorize grayscale image. |
|||
This function calculates a color wedge which maps all black pixels in |
|||
the source image to the first color and all white pixels to the |
|||
second color. If ``mid`` is specified, it uses three-color mapping. |
|||
The ``black`` and ``white`` arguments should be RGB tuples or color names; |
|||
optionally you can use three-color mapping by also specifying ``mid``. |
|||
Mapping positions for any of the colors can be specified |
|||
(e.g. ``blackpoint``), where these parameters are the integer |
|||
value corresponding to where the corresponding color should be mapped. |
|||
These parameters must have logical order, such that |
|||
``blackpoint <= midpoint <= whitepoint`` (if ``mid`` is specified). |
|||
|
|||
:param image: The image to colorize. |
|||
:param black: The color to use for black input pixels. |
|||
:param white: The color to use for white input pixels. |
|||
:param mid: The color to use for midtone input pixels. |
|||
:param blackpoint: an int value [0, 255] for the black mapping. |
|||
:param whitepoint: an int value [0, 255] for the white mapping. |
|||
:param midpoint: an int value [0, 255] for the midtone mapping. |
|||
:return: An image. |
|||
""" |
|||
|
|||
# Initial asserts |
|||
assert image.mode == "L" |
|||
if mid is None: |
|||
assert 0 <= blackpoint <= whitepoint <= 255 |
|||
else: |
|||
assert 0 <= blackpoint <= midpoint <= whitepoint <= 255 |
|||
|
|||
# Define colors from arguments |
|||
black = _color(black, "RGB") |
|||
white = _color(white, "RGB") |
|||
if mid is not None: |
|||
mid = _color(mid, "RGB") |
|||
|
|||
# Empty lists for the mapping |
|||
red = [] |
|||
green = [] |
|||
blue = [] |
|||
|
|||
# Create the low-end values |
|||
for i in range(0, blackpoint): |
|||
red.append(black[0]) |
|||
green.append(black[1]) |
|||
blue.append(black[2]) |
|||
|
|||
# Create the mapping (2-color) |
|||
if mid is None: |
|||
|
|||
range_map = range(0, whitepoint - blackpoint) |
|||
|
|||
for i in range_map: |
|||
red.append(black[0] + i * (white[0] - black[0]) // len(range_map)) |
|||
green.append(black[1] + i * (white[1] - black[1]) // len(range_map)) |
|||
blue.append(black[2] + i * (white[2] - black[2]) // len(range_map)) |
|||
|
|||
# Create the mapping (3-color) |
|||
else: |
|||
|
|||
range_map1 = range(0, midpoint - blackpoint) |
|||
range_map2 = range(0, whitepoint - midpoint) |
|||
|
|||
for i in range_map1: |
|||
red.append(black[0] + i * (mid[0] - black[0]) // len(range_map1)) |
|||
green.append(black[1] + i * (mid[1] - black[1]) // len(range_map1)) |
|||
blue.append(black[2] + i * (mid[2] - black[2]) // len(range_map1)) |
|||
for i in range_map2: |
|||
red.append(mid[0] + i * (white[0] - mid[0]) // len(range_map2)) |
|||
green.append(mid[1] + i * (white[1] - mid[1]) // len(range_map2)) |
|||
blue.append(mid[2] + i * (white[2] - mid[2]) // len(range_map2)) |
|||
|
|||
# Create the high-end values |
|||
for i in range(0, 256 - whitepoint): |
|||
red.append(white[0]) |
|||
green.append(white[1]) |
|||
blue.append(white[2]) |
|||
|
|||
# Return converted image |
|||
image = image.convert("RGB") |
|||
return _lut(image, red + green + blue) |
|||
|
|||
|
|||
def pad(image, size, method=Image.BICUBIC, color=None, centering=(0.5, 0.5)): |
|||
""" |
|||
Returns a sized and padded version of the image, expanded to fill the |
|||
requested aspect ratio and size. |
|||
|
|||
:param image: The image to size and crop. |
|||
:param size: The requested output size in pixels, given as a |
|||
(width, height) tuple. |
|||
:param method: What resampling method to use. Default is |
|||
:py:attr:`PIL.Image.BICUBIC`. See :ref:`concept-filters`. |
|||
:param color: The background color of the padded image. |
|||
:param centering: Control the position of the original image within the |
|||
padded version. |
|||
|
|||
(0.5, 0.5) will keep the image centered |
|||
(0, 0) will keep the image aligned to the top left |
|||
(1, 1) will keep the image aligned to the bottom |
|||
right |
|||
:return: An image. |
|||
""" |
|||
|
|||
im_ratio = image.width / image.height |
|||
dest_ratio = size[0] / size[1] |
|||
|
|||
if im_ratio == dest_ratio: |
|||
out = image.resize(size, resample=method) |
|||
else: |
|||
out = Image.new(image.mode, size, color) |
|||
if im_ratio > dest_ratio: |
|||
new_height = int(image.height / image.width * size[0]) |
|||
if new_height != size[1]: |
|||
image = image.resize((size[0], new_height), resample=method) |
|||
|
|||
y = int((size[1] - new_height) * max(0, min(centering[1], 1))) |
|||
out.paste(image, (0, y)) |
|||
else: |
|||
new_width = int(image.width / image.height * size[1]) |
|||
if new_width != size[0]: |
|||
image = image.resize((new_width, size[1]), resample=method) |
|||
|
|||
x = int((size[0] - new_width) * max(0, min(centering[0], 1))) |
|||
out.paste(image, (x, 0)) |
|||
return out |
|||
|
|||
|
|||
def crop(image, border=0): |
|||
""" |
|||
Remove border from image. The same amount of pixels are removed |
|||
from all four sides. This function works on all image modes. |
|||
|
|||
.. seealso:: :py:meth:`~PIL.Image.Image.crop` |
|||
|
|||
:param image: The image to crop. |
|||
:param border: The number of pixels to remove. |
|||
:return: An image. |
|||
""" |
|||
left, top, right, bottom = _border(border) |
|||
return image.crop((left, top, image.size[0] - right, image.size[1] - bottom)) |
|||
|
|||
|
|||
def scale(image, factor, resample=Image.BICUBIC): |
|||
""" |
|||
Returns a rescaled image by a specific factor given in parameter. |
|||
A factor greater than 1 expands the image, between 0 and 1 contracts the |
|||
image. |
|||
|
|||
:param image: The image to rescale. |
|||
:param factor: The expansion factor, as a float. |
|||
:param resample: What resampling method to use. Default is |
|||
:py:attr:`PIL.Image.BICUBIC`. See :ref:`concept-filters`. |
|||
:returns: An :py:class:`~PIL.Image.Image` object. |
|||
""" |
|||
if factor == 1: |
|||
return image.copy() |
|||
elif factor <= 0: |
|||
raise ValueError("the factor must be greater than 0") |
|||
else: |
|||
size = (round(factor * image.width), round(factor * image.height)) |
|||
return image.resize(size, resample) |
|||
|
|||
|
|||
def deform(image, deformer, resample=Image.BILINEAR): |
|||
""" |
|||
Deform the image. |
|||
|
|||
:param image: The image to deform. |
|||
:param deformer: A deformer object. Any object that implements a |
|||
``getmesh`` method can be used. |
|||
:param resample: An optional resampling filter. Same values possible as |
|||
in the PIL.Image.transform function. |
|||
:return: An image. |
|||
""" |
|||
return image.transform(image.size, Image.MESH, deformer.getmesh(image), resample) |
|||
|
|||
|
|||
def equalize(image, mask=None): |
|||
""" |
|||
Equalize the image histogram. This function applies a non-linear |
|||
mapping to the input image, in order to create a uniform |
|||
distribution of grayscale values in the output image. |
|||
|
|||
:param image: The image to equalize. |
|||
:param mask: An optional mask. If given, only the pixels selected by |
|||
the mask are included in the analysis. |
|||
:return: An image. |
|||
""" |
|||
if image.mode == "P": |
|||
image = image.convert("RGB") |
|||
h = image.histogram(mask) |
|||
lut = [] |
|||
for b in range(0, len(h), 256): |
|||
histo = [_f for _f in h[b : b + 256] if _f] |
|||
if len(histo) <= 1: |
|||
lut.extend(list(range(256))) |
|||
else: |
|||
step = (functools.reduce(operator.add, histo) - histo[-1]) // 255 |
|||
if not step: |
|||
lut.extend(list(range(256))) |
|||
else: |
|||
n = step // 2 |
|||
for i in range(256): |
|||
lut.append(n // step) |
|||
n = n + h[i + b] |
|||
return _lut(image, lut) |
|||
|
|||
|
|||
def expand(image, border=0, fill=0): |
|||
""" |
|||
Add border to the image |
|||
|
|||
:param image: The image to expand. |
|||
:param border: Border width, in pixels. |
|||
:param fill: Pixel fill value (a color value). Default is 0 (black). |
|||
:return: An image. |
|||
""" |
|||
left, top, right, bottom = _border(border) |
|||
width = left + image.size[0] + right |
|||
height = top + image.size[1] + bottom |
|||
out = Image.new(image.mode, (width, height), _color(fill, image.mode)) |
|||
out.paste(image, (left, top)) |
|||
return out |
|||
|
|||
|
|||
def fit(image, size, method=Image.BICUBIC, bleed=0.0, centering=(0.5, 0.5)): |
|||
""" |
|||
Returns a sized and cropped version of the image, cropped to the |
|||
requested aspect ratio and size. |
|||
|
|||
This function was contributed by Kevin Cazabon. |
|||
|
|||
:param image: The image to size and crop. |
|||
:param size: The requested output size in pixels, given as a |
|||
(width, height) tuple. |
|||
:param method: What resampling method to use. Default is |
|||
:py:attr:`PIL.Image.BICUBIC`. See :ref:`concept-filters`. |
|||
:param bleed: Remove a border around the outside of the image from all |
|||
four edges. The value is a decimal percentage (use 0.01 for |
|||
one percent). The default value is 0 (no border). |
|||
Cannot be greater than or equal to 0.5. |
|||
:param centering: Control the cropping position. Use (0.5, 0.5) for |
|||
center cropping (e.g. if cropping the width, take 50% off |
|||
of the left side, and therefore 50% off the right side). |
|||
(0.0, 0.0) will crop from the top left corner (i.e. if |
|||
cropping the width, take all of the crop off of the right |
|||
side, and if cropping the height, take all of it off the |
|||
bottom). (1.0, 0.0) will crop from the bottom left |
|||
corner, etc. (i.e. if cropping the width, take all of the |
|||
crop off the left side, and if cropping the height take |
|||
none from the top, and therefore all off the bottom). |
|||
:return: An image. |
|||
""" |
|||
|
|||
# by Kevin Cazabon, Feb 17/2000 |
|||
# kevin@cazabon.com |
|||
# http://www.cazabon.com |
|||
|
|||
# ensure centering is mutable |
|||
centering = list(centering) |
|||
|
|||
if not 0.0 <= centering[0] <= 1.0: |
|||
centering[0] = 0.5 |
|||
if not 0.0 <= centering[1] <= 1.0: |
|||
centering[1] = 0.5 |
|||
|
|||
if not 0.0 <= bleed < 0.5: |
|||
bleed = 0.0 |
|||
|
|||
# calculate the area to use for resizing and cropping, subtracting |
|||
# the 'bleed' around the edges |
|||
|
|||
# number of pixels to trim off on Top and Bottom, Left and Right |
|||
bleed_pixels = (bleed * image.size[0], bleed * image.size[1]) |
|||
|
|||
live_size = ( |
|||
image.size[0] - bleed_pixels[0] * 2, |
|||
image.size[1] - bleed_pixels[1] * 2, |
|||
) |
|||
|
|||
# calculate the aspect ratio of the live_size |
|||
live_size_ratio = live_size[0] / live_size[1] |
|||
|
|||
# calculate the aspect ratio of the output image |
|||
output_ratio = size[0] / size[1] |
|||
|
|||
# figure out if the sides or top/bottom will be cropped off |
|||
if live_size_ratio == output_ratio: |
|||
# live_size is already the needed ratio |
|||
crop_width = live_size[0] |
|||
crop_height = live_size[1] |
|||
elif live_size_ratio >= output_ratio: |
|||
# live_size is wider than what's needed, crop the sides |
|||
crop_width = output_ratio * live_size[1] |
|||
crop_height = live_size[1] |
|||
else: |
|||
# live_size is taller than what's needed, crop the top and bottom |
|||
crop_width = live_size[0] |
|||
crop_height = live_size[0] / output_ratio |
|||
|
|||
# make the crop |
|||
crop_left = bleed_pixels[0] + (live_size[0] - crop_width) * centering[0] |
|||
crop_top = bleed_pixels[1] + (live_size[1] - crop_height) * centering[1] |
|||
|
|||
crop = (crop_left, crop_top, crop_left + crop_width, crop_top + crop_height) |
|||
|
|||
# resize the image and return it |
|||
return image.resize(size, method, box=crop) |
|||
|
|||
|
|||
def flip(image): |
|||
""" |
|||
Flip the image vertically (top to bottom). |
|||
|
|||
:param image: The image to flip. |
|||
:return: An image. |
|||
""" |
|||
return image.transpose(Image.FLIP_TOP_BOTTOM) |
|||
|
|||
|
|||
def grayscale(image): |
|||
""" |
|||
Convert the image to grayscale. |
|||
|
|||
:param image: The image to convert. |
|||
:return: An image. |
|||
""" |
|||
return image.convert("L") |
|||
|
|||
|
|||
def invert(image): |
|||
""" |
|||
Invert (negate) the image. |
|||
|
|||
:param image: The image to invert. |
|||
:return: An image. |
|||
""" |
|||
lut = [] |
|||
for i in range(256): |
|||
lut.append(255 - i) |
|||
return _lut(image, lut) |
|||
|
|||
|
|||
def mirror(image): |
|||
""" |
|||
Flip image horizontally (left to right). |
|||
|
|||
:param image: The image to mirror. |
|||
:return: An image. |
|||
""" |
|||
return image.transpose(Image.FLIP_LEFT_RIGHT) |
|||
|
|||
|
|||
def posterize(image, bits): |
|||
""" |
|||
Reduce the number of bits for each color channel. |
|||
|
|||
:param image: The image to posterize. |
|||
:param bits: The number of bits to keep for each channel (1-8). |
|||
:return: An image. |
|||
""" |
|||
lut = [] |
|||
mask = ~(2 ** (8 - bits) - 1) |
|||
for i in range(256): |
|||
lut.append(i & mask) |
|||
return _lut(image, lut) |
|||
|
|||
|
|||
def solarize(image, threshold=128): |
|||
""" |
|||
Invert all pixel values above a threshold. |
|||
|
|||
:param image: The image to solarize. |
|||
:param threshold: All pixels above this greyscale level are inverted. |
|||
:return: An image. |
|||
""" |
|||
lut = [] |
|||
for i in range(256): |
|||
if i < threshold: |
|||
lut.append(i) |
|||
else: |
|||
lut.append(255 - i) |
|||
return _lut(image, lut) |
|||
|
|||
|
|||
def exif_transpose(image): |
|||
""" |
|||
If an image has an EXIF Orientation tag, return a new image that is |
|||
transposed accordingly. Otherwise, return a copy of the image. |
|||
|
|||
:param image: The image to transpose. |
|||
:return: An image. |
|||
""" |
|||
exif = image.getexif() |
|||
orientation = exif.get(0x0112) |
|||
method = { |
|||
2: Image.FLIP_LEFT_RIGHT, |
|||
3: Image.ROTATE_180, |
|||
4: Image.FLIP_TOP_BOTTOM, |
|||
5: Image.TRANSPOSE, |
|||
6: Image.ROTATE_270, |
|||
7: Image.TRANSVERSE, |
|||
8: Image.ROTATE_90, |
|||
}.get(orientation) |
|||
if method is not None: |
|||
transposed_image = image.transpose(method) |
|||
del exif[0x0112] |
|||
transposed_image.info["exif"] = exif.tobytes() |
|||
return transposed_image |
|||
return image.copy() |
@ -0,0 +1,221 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# image palette object |
|||
# |
|||
# History: |
|||
# 1996-03-11 fl Rewritten. |
|||
# 1997-01-03 fl Up and running. |
|||
# 1997-08-23 fl Added load hack |
|||
# 2001-04-16 fl Fixed randint shadow bug in random() |
|||
# |
|||
# Copyright (c) 1997-2001 by Secret Labs AB |
|||
# Copyright (c) 1996-1997 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
import array |
|||
|
|||
from . import GimpGradientFile, GimpPaletteFile, ImageColor, PaletteFile |
|||
|
|||
|
|||
class ImagePalette: |
|||
""" |
|||
Color palette for palette mapped images |
|||
|
|||
:param mode: The mode to use for the Palette. See: |
|||
:ref:`concept-modes`. Defaults to "RGB" |
|||
:param palette: An optional palette. If given, it must be a bytearray, |
|||
an array or a list of ints between 0-255 and of length ``size`` |
|||
times the number of colors in ``mode``. The list must be aligned |
|||
by channel (All R values must be contiguous in the list before G |
|||
and B values.) Defaults to 0 through 255 per channel. |
|||
:param size: An optional palette size. If given, it cannot be equal to |
|||
or greater than 256. Defaults to 0. |
|||
""" |
|||
|
|||
def __init__(self, mode="RGB", palette=None, size=0): |
|||
self.mode = mode |
|||
self.rawmode = None # if set, palette contains raw data |
|||
self.palette = palette or bytearray(range(256)) * len(self.mode) |
|||
self.colors = {} |
|||
self.dirty = None |
|||
if (size == 0 and len(self.mode) * 256 != len(self.palette)) or ( |
|||
size != 0 and size != len(self.palette) |
|||
): |
|||
raise ValueError("wrong palette size") |
|||
|
|||
def copy(self): |
|||
new = ImagePalette() |
|||
|
|||
new.mode = self.mode |
|||
new.rawmode = self.rawmode |
|||
if self.palette is not None: |
|||
new.palette = self.palette[:] |
|||
new.colors = self.colors.copy() |
|||
new.dirty = self.dirty |
|||
|
|||
return new |
|||
|
|||
def getdata(self): |
|||
""" |
|||
Get palette contents in format suitable for the low-level |
|||
``im.putpalette`` primitive. |
|||
|
|||
.. warning:: This method is experimental. |
|||
""" |
|||
if self.rawmode: |
|||
return self.rawmode, self.palette |
|||
return self.mode + ";L", self.tobytes() |
|||
|
|||
def tobytes(self): |
|||
"""Convert palette to bytes. |
|||
|
|||
.. warning:: This method is experimental. |
|||
""" |
|||
if self.rawmode: |
|||
raise ValueError("palette contains raw palette data") |
|||
if isinstance(self.palette, bytes): |
|||
return self.palette |
|||
arr = array.array("B", self.palette) |
|||
if hasattr(arr, "tobytes"): |
|||
return arr.tobytes() |
|||
return arr.tostring() |
|||
|
|||
# Declare tostring as an alias for tobytes |
|||
tostring = tobytes |
|||
|
|||
def getcolor(self, color): |
|||
"""Given an rgb tuple, allocate palette entry. |
|||
|
|||
.. warning:: This method is experimental. |
|||
""" |
|||
if self.rawmode: |
|||
raise ValueError("palette contains raw palette data") |
|||
if isinstance(color, tuple): |
|||
try: |
|||
return self.colors[color] |
|||
except KeyError as e: |
|||
# allocate new color slot |
|||
if isinstance(self.palette, bytes): |
|||
self.palette = bytearray(self.palette) |
|||
index = len(self.colors) |
|||
if index >= 256: |
|||
raise ValueError("cannot allocate more than 256 colors") from e |
|||
self.colors[color] = index |
|||
self.palette[index] = color[0] |
|||
self.palette[index + 256] = color[1] |
|||
self.palette[index + 512] = color[2] |
|||
self.dirty = 1 |
|||
return index |
|||
else: |
|||
raise ValueError(f"unknown color specifier: {repr(color)}") |
|||
|
|||
def save(self, fp): |
|||
"""Save palette to text file. |
|||
|
|||
.. warning:: This method is experimental. |
|||
""" |
|||
if self.rawmode: |
|||
raise ValueError("palette contains raw palette data") |
|||
if isinstance(fp, str): |
|||
fp = open(fp, "w") |
|||
fp.write("# Palette\n") |
|||
fp.write(f"# Mode: {self.mode}\n") |
|||
for i in range(256): |
|||
fp.write(f"{i}") |
|||
for j in range(i * len(self.mode), (i + 1) * len(self.mode)): |
|||
try: |
|||
fp.write(f" {self.palette[j]}") |
|||
except IndexError: |
|||
fp.write(" 0") |
|||
fp.write("\n") |
|||
fp.close() |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Internal |
|||
|
|||
|
|||
def raw(rawmode, data): |
|||
palette = ImagePalette() |
|||
palette.rawmode = rawmode |
|||
palette.palette = data |
|||
palette.dirty = 1 |
|||
return palette |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Factories |
|||
|
|||
|
|||
def make_linear_lut(black, white): |
|||
lut = [] |
|||
if black == 0: |
|||
for i in range(256): |
|||
lut.append(white * i // 255) |
|||
else: |
|||
raise NotImplementedError # FIXME |
|||
return lut |
|||
|
|||
|
|||
def make_gamma_lut(exp): |
|||
lut = [] |
|||
for i in range(256): |
|||
lut.append(int(((i / 255.0) ** exp) * 255.0 + 0.5)) |
|||
return lut |
|||
|
|||
|
|||
def negative(mode="RGB"): |
|||
palette = list(range(256)) |
|||
palette.reverse() |
|||
return ImagePalette(mode, palette * len(mode)) |
|||
|
|||
|
|||
def random(mode="RGB"): |
|||
from random import randint |
|||
|
|||
palette = [] |
|||
for i in range(256 * len(mode)): |
|||
palette.append(randint(0, 255)) |
|||
return ImagePalette(mode, palette) |
|||
|
|||
|
|||
def sepia(white="#fff0c0"): |
|||
r, g, b = ImageColor.getrgb(white) |
|||
r = make_linear_lut(0, r) |
|||
g = make_linear_lut(0, g) |
|||
b = make_linear_lut(0, b) |
|||
return ImagePalette("RGB", r + g + b) |
|||
|
|||
|
|||
def wedge(mode="RGB"): |
|||
return ImagePalette(mode, list(range(256)) * len(mode)) |
|||
|
|||
|
|||
def load(filename): |
|||
|
|||
# FIXME: supports GIMP gradients only |
|||
|
|||
with open(filename, "rb") as fp: |
|||
|
|||
for paletteHandler in [ |
|||
GimpPaletteFile.GimpPaletteFile, |
|||
GimpGradientFile.GimpGradientFile, |
|||
PaletteFile.PaletteFile, |
|||
]: |
|||
try: |
|||
fp.seek(0) |
|||
lut = paletteHandler(fp).getpalette() |
|||
if lut: |
|||
break |
|||
except (SyntaxError, ValueError): |
|||
# import traceback |
|||
# traceback.print_exc() |
|||
pass |
|||
else: |
|||
raise OSError("cannot load palette") |
|||
|
|||
return lut # data, rawmode |
@ -0,0 +1,19 @@ |
|||
# |
|||
# The Python Imaging Library |
|||
# $Id$ |
|||
# |
|||
# path interface |
|||
# |
|||
# History: |
|||
# 1996-11-04 fl Created |
|||
# 2002-04-14 fl Added documentation stub class |
|||
# |
|||
# Copyright (c) Secret Labs AB 1997. |
|||
# Copyright (c) Fredrik Lundh 1996. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
from . import Image |
|||
|
|||
Path = Image.core.path |
@ -0,0 +1,202 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# a simple Qt image interface. |
|||
# |
|||
# history: |
|||
# 2006-06-03 fl: created |
|||
# 2006-06-04 fl: inherit from QImage instead of wrapping it |
|||
# 2006-06-05 fl: removed toimage helper; move string support to ImageQt |
|||
# 2013-11-13 fl: add support for Qt5 (aurelien.ballier@cyclonit.com) |
|||
# |
|||
# Copyright (c) 2006 by Secret Labs AB |
|||
# Copyright (c) 2006 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
import sys |
|||
from io import BytesIO |
|||
|
|||
from . import Image |
|||
from ._util import isPath |
|||
|
|||
qt_versions = [ |
|||
["side6", "PySide6"], |
|||
["5", "PyQt5"], |
|||
["side2", "PySide2"], |
|||
] |
|||
|
|||
# If a version has already been imported, attempt it first |
|||
qt_versions.sort(key=lambda qt_version: qt_version[1] in sys.modules, reverse=True) |
|||
for qt_version, qt_module in qt_versions: |
|||
try: |
|||
if qt_module == "PySide6": |
|||
from PySide6.QtCore import QBuffer, QIODevice |
|||
from PySide6.QtGui import QImage, QPixmap, qRgba |
|||
elif qt_module == "PyQt5": |
|||
from PyQt5.QtCore import QBuffer, QIODevice |
|||
from PyQt5.QtGui import QImage, QPixmap, qRgba |
|||
elif qt_module == "PySide2": |
|||
from PySide2.QtCore import QBuffer, QIODevice |
|||
from PySide2.QtGui import QImage, QPixmap, qRgba |
|||
except (ImportError, RuntimeError): |
|||
continue |
|||
qt_is_installed = True |
|||
break |
|||
else: |
|||
qt_is_installed = False |
|||
qt_version = None |
|||
|
|||
|
|||
def rgb(r, g, b, a=255): |
|||
"""(Internal) Turns an RGB color into a Qt compatible color integer.""" |
|||
# use qRgb to pack the colors, and then turn the resulting long |
|||
# into a negative integer with the same bitpattern. |
|||
return qRgba(r, g, b, a) & 0xFFFFFFFF |
|||
|
|||
|
|||
def fromqimage(im): |
|||
""" |
|||
:param im: A PIL Image object, or a file name |
|||
(given either as Python string or a PyQt string object) |
|||
""" |
|||
buffer = QBuffer() |
|||
buffer.open(QIODevice.ReadWrite) |
|||
# preserve alpha channel with png |
|||
# otherwise ppm is more friendly with Image.open |
|||
if im.hasAlphaChannel(): |
|||
im.save(buffer, "png") |
|||
else: |
|||
im.save(buffer, "ppm") |
|||
|
|||
b = BytesIO() |
|||
b.write(buffer.data()) |
|||
buffer.close() |
|||
b.seek(0) |
|||
|
|||
return Image.open(b) |
|||
|
|||
|
|||
def fromqpixmap(im): |
|||
return fromqimage(im) |
|||
# buffer = QBuffer() |
|||
# buffer.open(QIODevice.ReadWrite) |
|||
# # im.save(buffer) |
|||
# # What if png doesn't support some image features like animation? |
|||
# im.save(buffer, 'ppm') |
|||
# bytes_io = BytesIO() |
|||
# bytes_io.write(buffer.data()) |
|||
# buffer.close() |
|||
# bytes_io.seek(0) |
|||
# return Image.open(bytes_io) |
|||
|
|||
|
|||
def align8to32(bytes, width, mode): |
|||
""" |
|||
converts each scanline of data from 8 bit to 32 bit aligned |
|||
""" |
|||
|
|||
bits_per_pixel = {"1": 1, "L": 8, "P": 8}[mode] |
|||
|
|||
# calculate bytes per line and the extra padding if needed |
|||
bits_per_line = bits_per_pixel * width |
|||
full_bytes_per_line, remaining_bits_per_line = divmod(bits_per_line, 8) |
|||
bytes_per_line = full_bytes_per_line + (1 if remaining_bits_per_line else 0) |
|||
|
|||
extra_padding = -bytes_per_line % 4 |
|||
|
|||
# already 32 bit aligned by luck |
|||
if not extra_padding: |
|||
return bytes |
|||
|
|||
new_data = [] |
|||
for i in range(len(bytes) // bytes_per_line): |
|||
new_data.append( |
|||
bytes[i * bytes_per_line : (i + 1) * bytes_per_line] |
|||
+ b"\x00" * extra_padding |
|||
) |
|||
|
|||
return b"".join(new_data) |
|||
|
|||
|
|||
def _toqclass_helper(im): |
|||
data = None |
|||
colortable = None |
|||
|
|||
# handle filename, if given instead of image name |
|||
if hasattr(im, "toUtf8"): |
|||
# FIXME - is this really the best way to do this? |
|||
im = str(im.toUtf8(), "utf-8") |
|||
if isPath(im): |
|||
im = Image.open(im) |
|||
|
|||
if im.mode == "1": |
|||
format = QImage.Format_Mono |
|||
elif im.mode == "L": |
|||
format = QImage.Format_Indexed8 |
|||
colortable = [] |
|||
for i in range(256): |
|||
colortable.append(rgb(i, i, i)) |
|||
elif im.mode == "P": |
|||
format = QImage.Format_Indexed8 |
|||
colortable = [] |
|||
palette = im.getpalette() |
|||
for i in range(0, len(palette), 3): |
|||
colortable.append(rgb(*palette[i : i + 3])) |
|||
elif im.mode == "RGB": |
|||
data = im.tobytes("raw", "BGRX") |
|||
format = QImage.Format_RGB32 |
|||
elif im.mode == "RGBA": |
|||
data = im.tobytes("raw", "BGRA") |
|||
format = QImage.Format_ARGB32 |
|||
else: |
|||
raise ValueError(f"unsupported image mode {repr(im.mode)}") |
|||
|
|||
__data = data or align8to32(im.tobytes(), im.size[0], im.mode) |
|||
return {"data": __data, "im": im, "format": format, "colortable": colortable} |
|||
|
|||
|
|||
if qt_is_installed: |
|||
|
|||
class ImageQt(QImage): |
|||
def __init__(self, im): |
|||
""" |
|||
An PIL image wrapper for Qt. This is a subclass of PyQt's QImage |
|||
class. |
|||
|
|||
:param im: A PIL Image object, or a file name (given either as |
|||
Python string or a PyQt string object). |
|||
""" |
|||
im_data = _toqclass_helper(im) |
|||
# must keep a reference, or Qt will crash! |
|||
# All QImage constructors that take data operate on an existing |
|||
# buffer, so this buffer has to hang on for the life of the image. |
|||
# Fixes https://github.com/python-pillow/Pillow/issues/1370 |
|||
self.__data = im_data["data"] |
|||
super().__init__( |
|||
self.__data, |
|||
im_data["im"].size[0], |
|||
im_data["im"].size[1], |
|||
im_data["format"], |
|||
) |
|||
if im_data["colortable"]: |
|||
self.setColorTable(im_data["colortable"]) |
|||
|
|||
|
|||
def toqimage(im): |
|||
return ImageQt(im) |
|||
|
|||
|
|||
def toqpixmap(im): |
|||
# # This doesn't work. For now using a dumb approach. |
|||
# im_data = _toqclass_helper(im) |
|||
# result = QPixmap(im_data['im'].size[0], im_data['im'].size[1]) |
|||
# result.loadFromData(im_data['data']) |
|||
# Fix some strange bug that causes |
|||
if im.mode == "RGB": |
|||
im = im.convert("RGBA") |
|||
|
|||
qimage = toqimage(im) |
|||
return QPixmap.fromImage(qimage) |
@ -0,0 +1,75 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# sequence support classes |
|||
# |
|||
# history: |
|||
# 1997-02-20 fl Created |
|||
# |
|||
# Copyright (c) 1997 by Secret Labs AB. |
|||
# Copyright (c) 1997 by Fredrik Lundh. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
## |
|||
|
|||
|
|||
class Iterator: |
|||
""" |
|||
This class implements an iterator object that can be used to loop |
|||
over an image sequence. |
|||
|
|||
You can use the ``[]`` operator to access elements by index. This operator |
|||
will raise an :py:exc:`IndexError` if you try to access a nonexistent |
|||
frame. |
|||
|
|||
:param im: An image object. |
|||
""" |
|||
|
|||
def __init__(self, im): |
|||
if not hasattr(im, "seek"): |
|||
raise AttributeError("im must have seek method") |
|||
self.im = im |
|||
self.position = getattr(self.im, "_min_frame", 0) |
|||
|
|||
def __getitem__(self, ix): |
|||
try: |
|||
self.im.seek(ix) |
|||
return self.im |
|||
except EOFError as e: |
|||
raise IndexError from e # end of sequence |
|||
|
|||
def __iter__(self): |
|||
return self |
|||
|
|||
def __next__(self): |
|||
try: |
|||
self.im.seek(self.position) |
|||
self.position += 1 |
|||
return self.im |
|||
except EOFError as e: |
|||
raise StopIteration from e |
|||
|
|||
|
|||
def all_frames(im, func=None): |
|||
""" |
|||
Applies a given function to all frames in an image or a list of images. |
|||
The frames are returned as a list of separate images. |
|||
|
|||
:param im: An image, or a list of images. |
|||
:param func: The function to apply to all of the image frames. |
|||
:returns: A list of images. |
|||
""" |
|||
if not isinstance(im, list): |
|||
im = [im] |
|||
|
|||
ims = [] |
|||
for imSequence in im: |
|||
current = imSequence.tell() |
|||
|
|||
ims += [im_frame.copy() for im_frame in Iterator(imSequence)] |
|||
|
|||
imSequence.seek(current) |
|||
return [func(im) for im in ims] if func else ims |
@ -0,0 +1,236 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# im.show() drivers |
|||
# |
|||
# History: |
|||
# 2008-04-06 fl Created |
|||
# |
|||
# Copyright (c) Secret Labs AB 2008. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
import os |
|||
import shutil |
|||
import subprocess |
|||
import sys |
|||
import tempfile |
|||
from shlex import quote |
|||
|
|||
from PIL import Image |
|||
|
|||
_viewers = [] |
|||
|
|||
|
|||
def register(viewer, order=1): |
|||
""" |
|||
The :py:func:`register` function is used to register additional viewers. |
|||
|
|||
:param viewer: The viewer to be registered. |
|||
:param order: |
|||
Zero or a negative integer to prepend this viewer to the list, |
|||
a positive integer to append it. |
|||
""" |
|||
try: |
|||
if issubclass(viewer, Viewer): |
|||
viewer = viewer() |
|||
except TypeError: |
|||
pass # raised if viewer wasn't a class |
|||
if order > 0: |
|||
_viewers.append(viewer) |
|||
else: |
|||
_viewers.insert(0, viewer) |
|||
|
|||
|
|||
def show(image, title=None, **options): |
|||
r""" |
|||
Display a given image. |
|||
|
|||
:param image: An image object. |
|||
:param title: Optional title. Not all viewers can display the title. |
|||
:param \**options: Additional viewer options. |
|||
:returns: ``True`` if a suitable viewer was found, ``False`` otherwise. |
|||
""" |
|||
for viewer in _viewers: |
|||
if viewer.show(image, title=title, **options): |
|||
return 1 |
|||
return 0 |
|||
|
|||
|
|||
class Viewer: |
|||
"""Base class for viewers.""" |
|||
|
|||
# main api |
|||
|
|||
def show(self, image, **options): |
|||
""" |
|||
The main function for displaying an image. |
|||
Converts the given image to the target format and displays it. |
|||
""" |
|||
|
|||
# save temporary image to disk |
|||
if not ( |
|||
image.mode in ("1", "RGBA") |
|||
or (self.format == "PNG" and image.mode in ("I;16", "LA")) |
|||
): |
|||
base = Image.getmodebase(image.mode) |
|||
if image.mode != base: |
|||
image = image.convert(base) |
|||
|
|||
return self.show_image(image, **options) |
|||
|
|||
# hook methods |
|||
|
|||
format = None |
|||
"""The format to convert the image into.""" |
|||
options = {} |
|||
"""Additional options used to convert the image.""" |
|||
|
|||
def get_format(self, image): |
|||
"""Return format name, or ``None`` to save as PGM/PPM.""" |
|||
return self.format |
|||
|
|||
def get_command(self, file, **options): |
|||
""" |
|||
Returns the command used to display the file. |
|||
Not implemented in the base class. |
|||
""" |
|||
raise NotImplementedError |
|||
|
|||
def save_image(self, image): |
|||
"""Save to temporary file and return filename.""" |
|||
return image._dump(format=self.get_format(image), **self.options) |
|||
|
|||
def show_image(self, image, **options): |
|||
"""Display the given image.""" |
|||
return self.show_file(self.save_image(image), **options) |
|||
|
|||
def show_file(self, file, **options): |
|||
"""Display the given file.""" |
|||
os.system(self.get_command(file, **options)) |
|||
return 1 |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
|
|||
|
|||
class WindowsViewer(Viewer): |
|||
"""The default viewer on Windows is the default system application for PNG files.""" |
|||
|
|||
format = "PNG" |
|||
options = {"compress_level": 1} |
|||
|
|||
def get_command(self, file, **options): |
|||
return ( |
|||
f'start "Pillow" /WAIT "{file}" ' |
|||
"&& ping -n 2 127.0.0.1 >NUL " |
|||
f'&& del /f "{file}"' |
|||
) |
|||
|
|||
|
|||
if sys.platform == "win32": |
|||
register(WindowsViewer) |
|||
|
|||
|
|||
class MacViewer(Viewer): |
|||
"""The default viewer on MacOS using ``Preview.app``.""" |
|||
|
|||
format = "PNG" |
|||
options = {"compress_level": 1} |
|||
|
|||
def get_command(self, file, **options): |
|||
# on darwin open returns immediately resulting in the temp |
|||
# file removal while app is opening |
|||
command = "open -a Preview.app" |
|||
command = f"({command} {quote(file)}; sleep 20; rm -f {quote(file)})&" |
|||
return command |
|||
|
|||
def show_file(self, file, **options): |
|||
"""Display given file""" |
|||
fd, path = tempfile.mkstemp() |
|||
with os.fdopen(fd, "w") as f: |
|||
f.write(file) |
|||
with open(path) as f: |
|||
subprocess.Popen( |
|||
["im=$(cat); open -a Preview.app $im; sleep 20; rm -f $im"], |
|||
shell=True, |
|||
stdin=f, |
|||
) |
|||
os.remove(path) |
|||
return 1 |
|||
|
|||
|
|||
if sys.platform == "darwin": |
|||
register(MacViewer) |
|||
|
|||
|
|||
class UnixViewer(Viewer): |
|||
format = "PNG" |
|||
options = {"compress_level": 1} |
|||
|
|||
def get_command(self, file, **options): |
|||
command = self.get_command_ex(file, **options)[0] |
|||
return f"({command} {quote(file)}; rm -f {quote(file)})&" |
|||
|
|||
def show_file(self, file, **options): |
|||
"""Display given file""" |
|||
fd, path = tempfile.mkstemp() |
|||
with os.fdopen(fd, "w") as f: |
|||
f.write(file) |
|||
with open(path) as f: |
|||
command = self.get_command_ex(file, **options)[0] |
|||
subprocess.Popen( |
|||
["im=$(cat);" + command + " $im; rm -f $im"], shell=True, stdin=f |
|||
) |
|||
os.remove(path) |
|||
return 1 |
|||
|
|||
|
|||
class DisplayViewer(UnixViewer): |
|||
"""The ImageMagick ``display`` command.""" |
|||
|
|||
def get_command_ex(self, file, **options): |
|||
command = executable = "display" |
|||
return command, executable |
|||
|
|||
|
|||
class EogViewer(UnixViewer): |
|||
"""The GNOME Image Viewer ``eog`` command.""" |
|||
|
|||
def get_command_ex(self, file, **options): |
|||
command = executable = "eog" |
|||
return command, executable |
|||
|
|||
|
|||
class XVViewer(UnixViewer): |
|||
""" |
|||
The X Viewer ``xv`` command. |
|||
This viewer supports the ``title`` parameter. |
|||
""" |
|||
|
|||
def get_command_ex(self, file, title=None, **options): |
|||
# note: xv is pretty outdated. most modern systems have |
|||
# imagemagick's display command instead. |
|||
command = executable = "xv" |
|||
if title: |
|||
command += f" -name {quote(title)}" |
|||
return command, executable |
|||
|
|||
|
|||
if sys.platform not in ("win32", "darwin"): # unixoids |
|||
if shutil.which("display"): |
|||
register(DisplayViewer) |
|||
if shutil.which("eog"): |
|||
register(EogViewer) |
|||
if shutil.which("xv"): |
|||
register(XVViewer) |
|||
|
|||
if __name__ == "__main__": |
|||
|
|||
if len(sys.argv) < 2: |
|||
print("Syntax: python ImageShow.py imagefile [title]") |
|||
sys.exit() |
|||
|
|||
with Image.open(sys.argv[1]) as im: |
|||
print(show(im, *sys.argv[2:])) |
@ -0,0 +1,147 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# global image statistics |
|||
# |
|||
# History: |
|||
# 1996-04-05 fl Created |
|||
# 1997-05-21 fl Added mask; added rms, var, stddev attributes |
|||
# 1997-08-05 fl Added median |
|||
# 1998-07-05 hk Fixed integer overflow error |
|||
# |
|||
# Notes: |
|||
# This class shows how to implement delayed evaluation of attributes. |
|||
# To get a certain value, simply access the corresponding attribute. |
|||
# The __getattr__ dispatcher takes care of the rest. |
|||
# |
|||
# Copyright (c) Secret Labs AB 1997. |
|||
# Copyright (c) Fredrik Lundh 1996-97. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
import functools |
|||
import math |
|||
import operator |
|||
|
|||
|
|||
class Stat: |
|||
def __init__(self, image_or_list, mask=None): |
|||
try: |
|||
if mask: |
|||
self.h = image_or_list.histogram(mask) |
|||
else: |
|||
self.h = image_or_list.histogram() |
|||
except AttributeError: |
|||
self.h = image_or_list # assume it to be a histogram list |
|||
if not isinstance(self.h, list): |
|||
raise TypeError("first argument must be image or list") |
|||
self.bands = list(range(len(self.h) // 256)) |
|||
|
|||
def __getattr__(self, id): |
|||
"""Calculate missing attribute""" |
|||
if id[:4] == "_get": |
|||
raise AttributeError(id) |
|||
# calculate missing attribute |
|||
v = getattr(self, "_get" + id)() |
|||
setattr(self, id, v) |
|||
return v |
|||
|
|||
def _getextrema(self): |
|||
"""Get min/max values for each band in the image""" |
|||
|
|||
def minmax(histogram): |
|||
n = 255 |
|||
x = 0 |
|||
for i in range(256): |
|||
if histogram[i]: |
|||
n = min(n, i) |
|||
x = max(x, i) |
|||
return n, x # returns (255, 0) if there's no data in the histogram |
|||
|
|||
v = [] |
|||
for i in range(0, len(self.h), 256): |
|||
v.append(minmax(self.h[i:])) |
|||
return v |
|||
|
|||
def _getcount(self): |
|||
"""Get total number of pixels in each layer""" |
|||
|
|||
v = [] |
|||
for i in range(0, len(self.h), 256): |
|||
v.append(functools.reduce(operator.add, self.h[i : i + 256])) |
|||
return v |
|||
|
|||
def _getsum(self): |
|||
"""Get sum of all pixels in each layer""" |
|||
|
|||
v = [] |
|||
for i in range(0, len(self.h), 256): |
|||
layerSum = 0.0 |
|||
for j in range(256): |
|||
layerSum += j * self.h[i + j] |
|||
v.append(layerSum) |
|||
return v |
|||
|
|||
def _getsum2(self): |
|||
"""Get squared sum of all pixels in each layer""" |
|||
|
|||
v = [] |
|||
for i in range(0, len(self.h), 256): |
|||
sum2 = 0.0 |
|||
for j in range(256): |
|||
sum2 += (j ** 2) * float(self.h[i + j]) |
|||
v.append(sum2) |
|||
return v |
|||
|
|||
def _getmean(self): |
|||
"""Get average pixel level for each layer""" |
|||
|
|||
v = [] |
|||
for i in self.bands: |
|||
v.append(self.sum[i] / self.count[i]) |
|||
return v |
|||
|
|||
def _getmedian(self): |
|||
"""Get median pixel level for each layer""" |
|||
|
|||
v = [] |
|||
for i in self.bands: |
|||
s = 0 |
|||
half = self.count[i] // 2 |
|||
b = i * 256 |
|||
for j in range(256): |
|||
s = s + self.h[b + j] |
|||
if s > half: |
|||
break |
|||
v.append(j) |
|||
return v |
|||
|
|||
def _getrms(self): |
|||
"""Get RMS for each layer""" |
|||
|
|||
v = [] |
|||
for i in self.bands: |
|||
v.append(math.sqrt(self.sum2[i] / self.count[i])) |
|||
return v |
|||
|
|||
def _getvar(self): |
|||
"""Get variance for each layer""" |
|||
|
|||
v = [] |
|||
for i in self.bands: |
|||
n = self.count[i] |
|||
v.append((self.sum2[i] - (self.sum[i] ** 2.0) / n) / n) |
|||
return v |
|||
|
|||
def _getstddev(self): |
|||
"""Get standard deviation for each layer""" |
|||
|
|||
v = [] |
|||
for i in self.bands: |
|||
v.append(math.sqrt(self.var[i])) |
|||
return v |
|||
|
|||
|
|||
Global = Stat # compatibility |
@ -0,0 +1,300 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# a Tk display interface |
|||
# |
|||
# History: |
|||
# 96-04-08 fl Created |
|||
# 96-09-06 fl Added getimage method |
|||
# 96-11-01 fl Rewritten, removed image attribute and crop method |
|||
# 97-05-09 fl Use PyImagingPaste method instead of image type |
|||
# 97-05-12 fl Minor tweaks to match the IFUNC95 interface |
|||
# 97-05-17 fl Support the "pilbitmap" booster patch |
|||
# 97-06-05 fl Added file= and data= argument to image constructors |
|||
# 98-03-09 fl Added width and height methods to Image classes |
|||
# 98-07-02 fl Use default mode for "P" images without palette attribute |
|||
# 98-07-02 fl Explicitly destroy Tkinter image objects |
|||
# 99-07-24 fl Support multiple Tk interpreters (from Greg Couch) |
|||
# 99-07-26 fl Automatically hook into Tkinter (if possible) |
|||
# 99-08-15 fl Hook uses _imagingtk instead of _imaging |
|||
# |
|||
# Copyright (c) 1997-1999 by Secret Labs AB |
|||
# Copyright (c) 1996-1997 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
import tkinter |
|||
from io import BytesIO |
|||
|
|||
from . import Image |
|||
|
|||
# -------------------------------------------------------------------- |
|||
# Check for Tkinter interface hooks |
|||
|
|||
_pilbitmap_ok = None |
|||
|
|||
|
|||
def _pilbitmap_check(): |
|||
global _pilbitmap_ok |
|||
if _pilbitmap_ok is None: |
|||
try: |
|||
im = Image.new("1", (1, 1)) |
|||
tkinter.BitmapImage(data=f"PIL:{im.im.id}") |
|||
_pilbitmap_ok = 1 |
|||
except tkinter.TclError: |
|||
_pilbitmap_ok = 0 |
|||
return _pilbitmap_ok |
|||
|
|||
|
|||
def _get_image_from_kw(kw): |
|||
source = None |
|||
if "file" in kw: |
|||
source = kw.pop("file") |
|||
elif "data" in kw: |
|||
source = BytesIO(kw.pop("data")) |
|||
if source: |
|||
return Image.open(source) |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# PhotoImage |
|||
|
|||
|
|||
class PhotoImage: |
|||
""" |
|||
A Tkinter-compatible photo image. This can be used |
|||
everywhere Tkinter expects an image object. If the image is an RGBA |
|||
image, pixels having alpha 0 are treated as transparent. |
|||
|
|||
The constructor takes either a PIL image, or a mode and a size. |
|||
Alternatively, you can use the ``file`` or ``data`` options to initialize |
|||
the photo image object. |
|||
|
|||
:param image: Either a PIL image, or a mode string. If a mode string is |
|||
used, a size must also be given. |
|||
:param size: If the first argument is a mode string, this defines the size |
|||
of the image. |
|||
:keyword file: A filename to load the image from (using |
|||
``Image.open(file)``). |
|||
:keyword data: An 8-bit string containing image data (as loaded from an |
|||
image file). |
|||
""" |
|||
|
|||
def __init__(self, image=None, size=None, **kw): |
|||
|
|||
# Tk compatibility: file or data |
|||
if image is None: |
|||
image = _get_image_from_kw(kw) |
|||
|
|||
if hasattr(image, "mode") and hasattr(image, "size"): |
|||
# got an image instead of a mode |
|||
mode = image.mode |
|||
if mode == "P": |
|||
# palette mapped data |
|||
image.load() |
|||
try: |
|||
mode = image.palette.mode |
|||
except AttributeError: |
|||
mode = "RGB" # default |
|||
size = image.size |
|||
kw["width"], kw["height"] = size |
|||
else: |
|||
mode = image |
|||
image = None |
|||
|
|||
if mode not in ["1", "L", "RGB", "RGBA"]: |
|||
mode = Image.getmodebase(mode) |
|||
|
|||
self.__mode = mode |
|||
self.__size = size |
|||
self.__photo = tkinter.PhotoImage(**kw) |
|||
self.tk = self.__photo.tk |
|||
if image: |
|||
self.paste(image) |
|||
|
|||
def __del__(self): |
|||
name = self.__photo.name |
|||
self.__photo.name = None |
|||
try: |
|||
self.__photo.tk.call("image", "delete", name) |
|||
except Exception: |
|||
pass # ignore internal errors |
|||
|
|||
def __str__(self): |
|||
""" |
|||
Get the Tkinter photo image identifier. This method is automatically |
|||
called by Tkinter whenever a PhotoImage object is passed to a Tkinter |
|||
method. |
|||
|
|||
:return: A Tkinter photo image identifier (a string). |
|||
""" |
|||
return str(self.__photo) |
|||
|
|||
def width(self): |
|||
""" |
|||
Get the width of the image. |
|||
|
|||
:return: The width, in pixels. |
|||
""" |
|||
return self.__size[0] |
|||
|
|||
def height(self): |
|||
""" |
|||
Get the height of the image. |
|||
|
|||
:return: The height, in pixels. |
|||
""" |
|||
return self.__size[1] |
|||
|
|||
def paste(self, im, box=None): |
|||
""" |
|||
Paste a PIL image into the photo image. Note that this can |
|||
be very slow if the photo image is displayed. |
|||
|
|||
:param im: A PIL image. The size must match the target region. If the |
|||
mode does not match, the image is converted to the mode of |
|||
the bitmap image. |
|||
:param box: A 4-tuple defining the left, upper, right, and lower pixel |
|||
coordinate. See :ref:`coordinate-system`. If None is given |
|||
instead of a tuple, all of the image is assumed. |
|||
""" |
|||
|
|||
# convert to blittable |
|||
im.load() |
|||
image = im.im |
|||
if image.isblock() and im.mode == self.__mode: |
|||
block = image |
|||
else: |
|||
block = image.new_block(self.__mode, im.size) |
|||
image.convert2(block, image) # convert directly between buffers |
|||
|
|||
tk = self.__photo.tk |
|||
|
|||
try: |
|||
tk.call("PyImagingPhoto", self.__photo, block.id) |
|||
except tkinter.TclError: |
|||
# activate Tkinter hook |
|||
try: |
|||
from . import _imagingtk |
|||
|
|||
try: |
|||
if hasattr(tk, "interp"): |
|||
# Required for PyPy, which always has CFFI installed |
|||
from cffi import FFI |
|||
|
|||
ffi = FFI() |
|||
|
|||
# PyPy is using an FFI CDATA element |
|||
# (Pdb) self.tk.interp |
|||
# <cdata 'Tcl_Interp *' 0x3061b50> |
|||
_imagingtk.tkinit(int(ffi.cast("uintptr_t", tk.interp)), 1) |
|||
else: |
|||
_imagingtk.tkinit(tk.interpaddr(), 1) |
|||
except AttributeError: |
|||
_imagingtk.tkinit(id(tk), 0) |
|||
tk.call("PyImagingPhoto", self.__photo, block.id) |
|||
except (ImportError, AttributeError, tkinter.TclError): |
|||
raise # configuration problem; cannot attach to Tkinter |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# BitmapImage |
|||
|
|||
|
|||
class BitmapImage: |
|||
""" |
|||
A Tkinter-compatible bitmap image. This can be used everywhere Tkinter |
|||
expects an image object. |
|||
|
|||
The given image must have mode "1". Pixels having value 0 are treated as |
|||
transparent. Options, if any, are passed on to Tkinter. The most commonly |
|||
used option is ``foreground``, which is used to specify the color for the |
|||
non-transparent parts. See the Tkinter documentation for information on |
|||
how to specify colours. |
|||
|
|||
:param image: A PIL image. |
|||
""" |
|||
|
|||
def __init__(self, image=None, **kw): |
|||
|
|||
# Tk compatibility: file or data |
|||
if image is None: |
|||
image = _get_image_from_kw(kw) |
|||
|
|||
self.__mode = image.mode |
|||
self.__size = image.size |
|||
|
|||
if _pilbitmap_check(): |
|||
# fast way (requires the pilbitmap booster patch) |
|||
image.load() |
|||
kw["data"] = f"PIL:{image.im.id}" |
|||
self.__im = image # must keep a reference |
|||
else: |
|||
# slow but safe way |
|||
kw["data"] = image.tobitmap() |
|||
self.__photo = tkinter.BitmapImage(**kw) |
|||
|
|||
def __del__(self): |
|||
name = self.__photo.name |
|||
self.__photo.name = None |
|||
try: |
|||
self.__photo.tk.call("image", "delete", name) |
|||
except Exception: |
|||
pass # ignore internal errors |
|||
|
|||
def width(self): |
|||
""" |
|||
Get the width of the image. |
|||
|
|||
:return: The width, in pixels. |
|||
""" |
|||
return self.__size[0] |
|||
|
|||
def height(self): |
|||
""" |
|||
Get the height of the image. |
|||
|
|||
:return: The height, in pixels. |
|||
""" |
|||
return self.__size[1] |
|||
|
|||
def __str__(self): |
|||
""" |
|||
Get the Tkinter bitmap image identifier. This method is automatically |
|||
called by Tkinter whenever a BitmapImage object is passed to a Tkinter |
|||
method. |
|||
|
|||
:return: A Tkinter bitmap image identifier (a string). |
|||
""" |
|||
return str(self.__photo) |
|||
|
|||
|
|||
def getimage(photo): |
|||
"""Copies the contents of a PhotoImage to a PIL image memory.""" |
|||
im = Image.new("RGBA", (photo.width(), photo.height())) |
|||
block = im.im |
|||
|
|||
photo.tk.call("PyImagingPhotoGet", photo, block.id) |
|||
|
|||
return im |
|||
|
|||
|
|||
def _show(image, title): |
|||
"""Helper for the Image.show method.""" |
|||
|
|||
class UI(tkinter.Label): |
|||
def __init__(self, master, im): |
|||
if im.mode == "1": |
|||
self.image = BitmapImage(im, foreground="white", master=master) |
|||
else: |
|||
self.image = PhotoImage(im, master=master) |
|||
super().__init__(master, image=self.image, bg="black", bd=0) |
|||
|
|||
if not tkinter._default_root: |
|||
raise OSError("tkinter not initialized") |
|||
top = tkinter.Toplevel() |
|||
if title: |
|||
top.title(title) |
|||
UI(top, image).pack() |
@ -0,0 +1,102 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# transform wrappers |
|||
# |
|||
# History: |
|||
# 2002-04-08 fl Created |
|||
# |
|||
# Copyright (c) 2002 by Secret Labs AB |
|||
# Copyright (c) 2002 by Fredrik Lundh |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
from . import Image |
|||
|
|||
|
|||
class Transform(Image.ImageTransformHandler): |
|||
def __init__(self, data): |
|||
self.data = data |
|||
|
|||
def getdata(self): |
|||
return self.method, self.data |
|||
|
|||
def transform(self, size, image, **options): |
|||
# can be overridden |
|||
method, data = self.getdata() |
|||
return image.transform(size, method, data, **options) |
|||
|
|||
|
|||
class AffineTransform(Transform): |
|||
""" |
|||
Define an affine image transform. |
|||
|
|||
This function takes a 6-tuple (a, b, c, d, e, f) which contain the first |
|||
two rows from an affine transform matrix. For each pixel (x, y) in the |
|||
output image, the new value is taken from a position (a x + b y + c, |
|||
d x + e y + f) in the input image, rounded to nearest pixel. |
|||
|
|||
This function can be used to scale, translate, rotate, and shear the |
|||
original image. |
|||
|
|||
See :py:meth:`~PIL.Image.Image.transform` |
|||
|
|||
:param matrix: A 6-tuple (a, b, c, d, e, f) containing the first two rows |
|||
from an affine transform matrix. |
|||
""" |
|||
|
|||
method = Image.AFFINE |
|||
|
|||
|
|||
class ExtentTransform(Transform): |
|||
""" |
|||
Define a transform to extract a subregion from an image. |
|||
|
|||
Maps a rectangle (defined by two corners) from the image to a rectangle of |
|||
the given size. The resulting image will contain data sampled from between |
|||
the corners, such that (x0, y0) in the input image will end up at (0,0) in |
|||
the output image, and (x1, y1) at size. |
|||
|
|||
This method can be used to crop, stretch, shrink, or mirror an arbitrary |
|||
rectangle in the current image. It is slightly slower than crop, but about |
|||
as fast as a corresponding resize operation. |
|||
|
|||
See :py:meth:`~PIL.Image.Image.transform` |
|||
|
|||
:param bbox: A 4-tuple (x0, y0, x1, y1) which specifies two points in the |
|||
input image's coordinate system. See :ref:`coordinate-system`. |
|||
""" |
|||
|
|||
method = Image.EXTENT |
|||
|
|||
|
|||
class QuadTransform(Transform): |
|||
""" |
|||
Define a quad image transform. |
|||
|
|||
Maps a quadrilateral (a region defined by four corners) from the image to a |
|||
rectangle of the given size. |
|||
|
|||
See :py:meth:`~PIL.Image.Image.transform` |
|||
|
|||
:param xy: An 8-tuple (x0, y0, x1, y1, x2, y2, x3, y3) which contain the |
|||
upper left, lower left, lower right, and upper right corner of the |
|||
source quadrilateral. |
|||
""" |
|||
|
|||
method = Image.QUAD |
|||
|
|||
|
|||
class MeshTransform(Transform): |
|||
""" |
|||
Define a mesh image transform. A mesh transform consists of one or more |
|||
individual quad transforms. |
|||
|
|||
See :py:meth:`~PIL.Image.Image.transform` |
|||
|
|||
:param data: A list of (bbox, quad) tuples. |
|||
""" |
|||
|
|||
method = Image.MESH |
@ -0,0 +1,230 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# a Windows DIB display interface |
|||
# |
|||
# History: |
|||
# 1996-05-20 fl Created |
|||
# 1996-09-20 fl Fixed subregion exposure |
|||
# 1997-09-21 fl Added draw primitive (for tzPrint) |
|||
# 2003-05-21 fl Added experimental Window/ImageWindow classes |
|||
# 2003-09-05 fl Added fromstring/tostring methods |
|||
# |
|||
# Copyright (c) Secret Labs AB 1997-2003. |
|||
# Copyright (c) Fredrik Lundh 1996-2003. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
from . import Image |
|||
|
|||
|
|||
class HDC: |
|||
""" |
|||
Wraps an HDC integer. The resulting object can be passed to the |
|||
:py:meth:`~PIL.ImageWin.Dib.draw` and :py:meth:`~PIL.ImageWin.Dib.expose` |
|||
methods. |
|||
""" |
|||
|
|||
def __init__(self, dc): |
|||
self.dc = dc |
|||
|
|||
def __int__(self): |
|||
return self.dc |
|||
|
|||
|
|||
class HWND: |
|||
""" |
|||
Wraps an HWND integer. The resulting object can be passed to the |
|||
:py:meth:`~PIL.ImageWin.Dib.draw` and :py:meth:`~PIL.ImageWin.Dib.expose` |
|||
methods, instead of a DC. |
|||
""" |
|||
|
|||
def __init__(self, wnd): |
|||
self.wnd = wnd |
|||
|
|||
def __int__(self): |
|||
return self.wnd |
|||
|
|||
|
|||
class Dib: |
|||
""" |
|||
A Windows bitmap with the given mode and size. The mode can be one of "1", |
|||
"L", "P", or "RGB". |
|||
|
|||
If the display requires a palette, this constructor creates a suitable |
|||
palette and associates it with the image. For an "L" image, 128 greylevels |
|||
are allocated. For an "RGB" image, a 6x6x6 colour cube is used, together |
|||
with 20 greylevels. |
|||
|
|||
To make sure that palettes work properly under Windows, you must call the |
|||
``palette`` method upon certain events from Windows. |
|||
|
|||
:param image: Either a PIL image, or a mode string. If a mode string is |
|||
used, a size must also be given. The mode can be one of "1", |
|||
"L", "P", or "RGB". |
|||
:param size: If the first argument is a mode string, this |
|||
defines the size of the image. |
|||
""" |
|||
|
|||
def __init__(self, image, size=None): |
|||
if hasattr(image, "mode") and hasattr(image, "size"): |
|||
mode = image.mode |
|||
size = image.size |
|||
else: |
|||
mode = image |
|||
image = None |
|||
if mode not in ["1", "L", "P", "RGB"]: |
|||
mode = Image.getmodebase(mode) |
|||
self.image = Image.core.display(mode, size) |
|||
self.mode = mode |
|||
self.size = size |
|||
if image: |
|||
self.paste(image) |
|||
|
|||
def expose(self, handle): |
|||
""" |
|||
Copy the bitmap contents to a device context. |
|||
|
|||
:param handle: Device context (HDC), cast to a Python integer, or an |
|||
HDC or HWND instance. In PythonWin, you can use |
|||
``CDC.GetHandleAttrib()`` to get a suitable handle. |
|||
""" |
|||
if isinstance(handle, HWND): |
|||
dc = self.image.getdc(handle) |
|||
try: |
|||
result = self.image.expose(dc) |
|||
finally: |
|||
self.image.releasedc(handle, dc) |
|||
else: |
|||
result = self.image.expose(handle) |
|||
return result |
|||
|
|||
def draw(self, handle, dst, src=None): |
|||
""" |
|||
Same as expose, but allows you to specify where to draw the image, and |
|||
what part of it to draw. |
|||
|
|||
The destination and source areas are given as 4-tuple rectangles. If |
|||
the source is omitted, the entire image is copied. If the source and |
|||
the destination have different sizes, the image is resized as |
|||
necessary. |
|||
""" |
|||
if not src: |
|||
src = (0, 0) + self.size |
|||
if isinstance(handle, HWND): |
|||
dc = self.image.getdc(handle) |
|||
try: |
|||
result = self.image.draw(dc, dst, src) |
|||
finally: |
|||
self.image.releasedc(handle, dc) |
|||
else: |
|||
result = self.image.draw(handle, dst, src) |
|||
return result |
|||
|
|||
def query_palette(self, handle): |
|||
""" |
|||
Installs the palette associated with the image in the given device |
|||
context. |
|||
|
|||
This method should be called upon **QUERYNEWPALETTE** and |
|||
**PALETTECHANGED** events from Windows. If this method returns a |
|||
non-zero value, one or more display palette entries were changed, and |
|||
the image should be redrawn. |
|||
|
|||
:param handle: Device context (HDC), cast to a Python integer, or an |
|||
HDC or HWND instance. |
|||
:return: A true value if one or more entries were changed (this |
|||
indicates that the image should be redrawn). |
|||
""" |
|||
if isinstance(handle, HWND): |
|||
handle = self.image.getdc(handle) |
|||
try: |
|||
result = self.image.query_palette(handle) |
|||
finally: |
|||
self.image.releasedc(handle, handle) |
|||
else: |
|||
result = self.image.query_palette(handle) |
|||
return result |
|||
|
|||
def paste(self, im, box=None): |
|||
""" |
|||
Paste a PIL image into the bitmap image. |
|||
|
|||
:param im: A PIL image. The size must match the target region. |
|||
If the mode does not match, the image is converted to the |
|||
mode of the bitmap image. |
|||
:param box: A 4-tuple defining the left, upper, right, and |
|||
lower pixel coordinate. See :ref:`coordinate-system`. If |
|||
None is given instead of a tuple, all of the image is |
|||
assumed. |
|||
""" |
|||
im.load() |
|||
if self.mode != im.mode: |
|||
im = im.convert(self.mode) |
|||
if box: |
|||
self.image.paste(im.im, box) |
|||
else: |
|||
self.image.paste(im.im) |
|||
|
|||
def frombytes(self, buffer): |
|||
""" |
|||
Load display memory contents from byte data. |
|||
|
|||
:param buffer: A buffer containing display data (usually |
|||
data returned from :py:func:`~PIL.ImageWin.Dib.tobytes`) |
|||
""" |
|||
return self.image.frombytes(buffer) |
|||
|
|||
def tobytes(self): |
|||
""" |
|||
Copy display memory contents to bytes object. |
|||
|
|||
:return: A bytes object containing display data. |
|||
""" |
|||
return self.image.tobytes() |
|||
|
|||
|
|||
class Window: |
|||
"""Create a Window with the given title size.""" |
|||
|
|||
def __init__(self, title="PIL", width=None, height=None): |
|||
self.hwnd = Image.core.createwindow( |
|||
title, self.__dispatcher, width or 0, height or 0 |
|||
) |
|||
|
|||
def __dispatcher(self, action, *args): |
|||
return getattr(self, "ui_handle_" + action)(*args) |
|||
|
|||
def ui_handle_clear(self, dc, x0, y0, x1, y1): |
|||
pass |
|||
|
|||
def ui_handle_damage(self, x0, y0, x1, y1): |
|||
pass |
|||
|
|||
def ui_handle_destroy(self): |
|||
pass |
|||
|
|||
def ui_handle_repair(self, dc, x0, y0, x1, y1): |
|||
pass |
|||
|
|||
def ui_handle_resize(self, width, height): |
|||
pass |
|||
|
|||
def mainloop(self): |
|||
Image.core.eventloop() |
|||
|
|||
|
|||
class ImageWindow(Window): |
|||
"""Create an image window which displays the given image.""" |
|||
|
|||
def __init__(self, image, title="PIL"): |
|||
if not isinstance(image, Dib): |
|||
image = Dib(image) |
|||
self.image = image |
|||
width, height = image.size |
|||
super().__init__(title, width=width, height=height) |
|||
|
|||
def ui_handle_repair(self, dc, x0, y0, x1, y1): |
|||
self.image.draw(dc, (x0, y0, x1, y1)) |
@ -0,0 +1,93 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# IM Tools support for PIL |
|||
# |
|||
# history: |
|||
# 1996-05-27 fl Created (read 8-bit images only) |
|||
# 2001-02-17 fl Use 're' instead of 'regex' (Python 2.1) (0.2) |
|||
# |
|||
# Copyright (c) Secret Labs AB 1997-2001. |
|||
# Copyright (c) Fredrik Lundh 1996-2001. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
|
|||
import re |
|||
|
|||
from . import Image, ImageFile |
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
|
|||
field = re.compile(br"([a-z]*) ([^ \r\n]*)") |
|||
|
|||
|
|||
## |
|||
# Image plugin for IM Tools images. |
|||
|
|||
|
|||
class ImtImageFile(ImageFile.ImageFile): |
|||
|
|||
format = "IMT" |
|||
format_description = "IM Tools" |
|||
|
|||
def _open(self): |
|||
|
|||
# Quick rejection: if there's not a LF among the first |
|||
# 100 bytes, this is (probably) not a text header. |
|||
|
|||
if b"\n" not in self.fp.read(100): |
|||
raise SyntaxError("not an IM file") |
|||
self.fp.seek(0) |
|||
|
|||
xsize = ysize = 0 |
|||
|
|||
while True: |
|||
|
|||
s = self.fp.read(1) |
|||
if not s: |
|||
break |
|||
|
|||
if s == b"\x0C": |
|||
|
|||
# image data begins |
|||
self.tile = [ |
|||
("raw", (0, 0) + self.size, self.fp.tell(), (self.mode, 0, 1)) |
|||
] |
|||
|
|||
break |
|||
|
|||
else: |
|||
|
|||
# read key/value pair |
|||
# FIXME: dangerous, may read whole file |
|||
s = s + self.fp.readline() |
|||
if len(s) == 1 or len(s) > 100: |
|||
break |
|||
if s[0] == ord(b"*"): |
|||
continue # comment |
|||
|
|||
m = field.match(s) |
|||
if not m: |
|||
break |
|||
k, v = m.group(1, 2) |
|||
if k == "width": |
|||
xsize = int(v) |
|||
self._size = xsize, ysize |
|||
elif k == "height": |
|||
ysize = int(v) |
|||
self._size = xsize, ysize |
|||
elif k == "pixel" and v == "n8": |
|||
self.mode = "L" |
|||
|
|||
|
|||
# |
|||
# -------------------------------------------------------------------- |
|||
|
|||
Image.register_open(ImtImageFile.format, ImtImageFile) |
|||
|
|||
# |
|||
# no extension registered (".im" is simply too common) |
@ -0,0 +1,230 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# IPTC/NAA file handling |
|||
# |
|||
# history: |
|||
# 1995-10-01 fl Created |
|||
# 1998-03-09 fl Cleaned up and added to PIL |
|||
# 2002-06-18 fl Added getiptcinfo helper |
|||
# |
|||
# Copyright (c) Secret Labs AB 1997-2002. |
|||
# Copyright (c) Fredrik Lundh 1995. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
import os |
|||
import tempfile |
|||
|
|||
from . import Image, ImageFile |
|||
from ._binary import i8 |
|||
from ._binary import i16be as i16 |
|||
from ._binary import i32be as i32 |
|||
from ._binary import o8 |
|||
|
|||
COMPRESSION = {1: "raw", 5: "jpeg"} |
|||
|
|||
PAD = o8(0) * 4 |
|||
|
|||
|
|||
# |
|||
# Helpers |
|||
|
|||
|
|||
def i(c): |
|||
return i32((PAD + c)[-4:]) |
|||
|
|||
|
|||
def dump(c): |
|||
for i in c: |
|||
print("%02x" % i8(i), end=" ") |
|||
print() |
|||
|
|||
|
|||
## |
|||
# Image plugin for IPTC/NAA datastreams. To read IPTC/NAA fields |
|||
# from TIFF and JPEG files, use the <b>getiptcinfo</b> function. |
|||
|
|||
|
|||
class IptcImageFile(ImageFile.ImageFile): |
|||
|
|||
format = "IPTC" |
|||
format_description = "IPTC/NAA" |
|||
|
|||
def getint(self, key): |
|||
return i(self.info[key]) |
|||
|
|||
def field(self): |
|||
# |
|||
# get a IPTC field header |
|||
s = self.fp.read(5) |
|||
if not len(s): |
|||
return None, 0 |
|||
|
|||
tag = s[1], s[2] |
|||
|
|||
# syntax |
|||
if s[0] != 0x1C or tag[0] < 1 or tag[0] > 9: |
|||
raise SyntaxError("invalid IPTC/NAA file") |
|||
|
|||
# field size |
|||
size = s[3] |
|||
if size > 132: |
|||
raise OSError("illegal field length in IPTC/NAA file") |
|||
elif size == 128: |
|||
size = 0 |
|||
elif size > 128: |
|||
size = i(self.fp.read(size - 128)) |
|||
else: |
|||
size = i16(s, 3) |
|||
|
|||
return tag, size |
|||
|
|||
def _open(self): |
|||
|
|||
# load descriptive fields |
|||
while True: |
|||
offset = self.fp.tell() |
|||
tag, size = self.field() |
|||
if not tag or tag == (8, 10): |
|||
break |
|||
if size: |
|||
tagdata = self.fp.read(size) |
|||
else: |
|||
tagdata = None |
|||
if tag in self.info: |
|||
if isinstance(self.info[tag], list): |
|||
self.info[tag].append(tagdata) |
|||
else: |
|||
self.info[tag] = [self.info[tag], tagdata] |
|||
else: |
|||
self.info[tag] = tagdata |
|||
|
|||
# mode |
|||
layers = i8(self.info[(3, 60)][0]) |
|||
component = i8(self.info[(3, 60)][1]) |
|||
if (3, 65) in self.info: |
|||
id = i8(self.info[(3, 65)][0]) - 1 |
|||
else: |
|||
id = 0 |
|||
if layers == 1 and not component: |
|||
self.mode = "L" |
|||
elif layers == 3 and component: |
|||
self.mode = "RGB"[id] |
|||
elif layers == 4 and component: |
|||
self.mode = "CMYK"[id] |
|||
|
|||
# size |
|||
self._size = self.getint((3, 20)), self.getint((3, 30)) |
|||
|
|||
# compression |
|||
try: |
|||
compression = COMPRESSION[self.getint((3, 120))] |
|||
except KeyError as e: |
|||
raise OSError("Unknown IPTC image compression") from e |
|||
|
|||
# tile |
|||
if tag == (8, 10): |
|||
self.tile = [ |
|||
("iptc", (compression, offset), (0, 0, self.size[0], self.size[1])) |
|||
] |
|||
|
|||
def load(self): |
|||
|
|||
if len(self.tile) != 1 or self.tile[0][0] != "iptc": |
|||
return ImageFile.ImageFile.load(self) |
|||
|
|||
type, tile, box = self.tile[0] |
|||
|
|||
encoding, offset = tile |
|||
|
|||
self.fp.seek(offset) |
|||
|
|||
# Copy image data to temporary file |
|||
o_fd, outfile = tempfile.mkstemp(text=False) |
|||
o = os.fdopen(o_fd) |
|||
if encoding == "raw": |
|||
# To simplify access to the extracted file, |
|||
# prepend a PPM header |
|||
o.write("P5\n%d %d\n255\n" % self.size) |
|||
while True: |
|||
type, size = self.field() |
|||
if type != (8, 10): |
|||
break |
|||
while size > 0: |
|||
s = self.fp.read(min(size, 8192)) |
|||
if not s: |
|||
break |
|||
o.write(s) |
|||
size -= len(s) |
|||
o.close() |
|||
|
|||
try: |
|||
with Image.open(outfile) as _im: |
|||
_im.load() |
|||
self.im = _im.im |
|||
finally: |
|||
try: |
|||
os.unlink(outfile) |
|||
except OSError: |
|||
pass |
|||
|
|||
|
|||
Image.register_open(IptcImageFile.format, IptcImageFile) |
|||
|
|||
Image.register_extension(IptcImageFile.format, ".iim") |
|||
|
|||
|
|||
def getiptcinfo(im): |
|||
""" |
|||
Get IPTC information from TIFF, JPEG, or IPTC file. |
|||
|
|||
:param im: An image containing IPTC data. |
|||
:returns: A dictionary containing IPTC information, or None if |
|||
no IPTC information block was found. |
|||
""" |
|||
import io |
|||
|
|||
from . import JpegImagePlugin, TiffImagePlugin |
|||
|
|||
data = None |
|||
|
|||
if isinstance(im, IptcImageFile): |
|||
# return info dictionary right away |
|||
return im.info |
|||
|
|||
elif isinstance(im, JpegImagePlugin.JpegImageFile): |
|||
# extract the IPTC/NAA resource |
|||
photoshop = im.info.get("photoshop") |
|||
if photoshop: |
|||
data = photoshop.get(0x0404) |
|||
|
|||
elif isinstance(im, TiffImagePlugin.TiffImageFile): |
|||
# get raw data from the IPTC/NAA tag (PhotoShop tags the data |
|||
# as 4-byte integers, so we cannot use the get method...) |
|||
try: |
|||
data = im.tag.tagdata[TiffImagePlugin.IPTC_NAA_CHUNK] |
|||
except (AttributeError, KeyError): |
|||
pass |
|||
|
|||
if data is None: |
|||
return None # no properties |
|||
|
|||
# create an IptcImagePlugin object without initializing it |
|||
class FakeImage: |
|||
pass |
|||
|
|||
im = FakeImage() |
|||
im.__class__ = IptcImageFile |
|||
|
|||
# parse the IPTC information chunk |
|||
im.info = {} |
|||
im.fp = io.BytesIO(data) |
|||
|
|||
try: |
|||
im._open() |
|||
except (IndexError, KeyError): |
|||
pass # expected failure |
|||
|
|||
return im.info |
@ -0,0 +1,314 @@ |
|||
# |
|||
# The Python Imaging Library |
|||
# $Id$ |
|||
# |
|||
# JPEG2000 file handling |
|||
# |
|||
# History: |
|||
# 2014-03-12 ajh Created |
|||
# |
|||
# Copyright (c) 2014 Coriolis Systems Limited |
|||
# Copyright (c) 2014 Alastair Houghton |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
import io |
|||
import os |
|||
import struct |
|||
|
|||
from . import Image, ImageFile |
|||
|
|||
|
|||
def _parse_codestream(fp): |
|||
"""Parse the JPEG 2000 codestream to extract the size and component |
|||
count from the SIZ marker segment, returning a PIL (size, mode) tuple.""" |
|||
|
|||
hdr = fp.read(2) |
|||
lsiz = struct.unpack(">H", hdr)[0] |
|||
siz = hdr + fp.read(lsiz - 2) |
|||
lsiz, rsiz, xsiz, ysiz, xosiz, yosiz, _, _, _, _, csiz = struct.unpack_from( |
|||
">HHIIIIIIIIH", siz |
|||
) |
|||
ssiz = [None] * csiz |
|||
xrsiz = [None] * csiz |
|||
yrsiz = [None] * csiz |
|||
for i in range(csiz): |
|||
ssiz[i], xrsiz[i], yrsiz[i] = struct.unpack_from(">BBB", siz, 36 + 3 * i) |
|||
|
|||
size = (xsiz - xosiz, ysiz - yosiz) |
|||
if csiz == 1: |
|||
if (yrsiz[0] & 0x7F) > 8: |
|||
mode = "I;16" |
|||
else: |
|||
mode = "L" |
|||
elif csiz == 2: |
|||
mode = "LA" |
|||
elif csiz == 3: |
|||
mode = "RGB" |
|||
elif csiz == 4: |
|||
mode = "RGBA" |
|||
else: |
|||
mode = None |
|||
|
|||
return (size, mode) |
|||
|
|||
|
|||
def _parse_jp2_header(fp): |
|||
"""Parse the JP2 header box to extract size, component count and |
|||
color space information, returning a (size, mode, mimetype) tuple.""" |
|||
|
|||
# Find the JP2 header box |
|||
header = None |
|||
mimetype = None |
|||
while True: |
|||
lbox, tbox = struct.unpack(">I4s", fp.read(8)) |
|||
if lbox == 1: |
|||
lbox = struct.unpack(">Q", fp.read(8))[0] |
|||
hlen = 16 |
|||
else: |
|||
hlen = 8 |
|||
|
|||
if lbox < hlen: |
|||
raise SyntaxError("Invalid JP2 header length") |
|||
|
|||
if tbox == b"jp2h": |
|||
header = fp.read(lbox - hlen) |
|||
break |
|||
elif tbox == b"ftyp": |
|||
if fp.read(4) == b"jpx ": |
|||
mimetype = "image/jpx" |
|||
fp.seek(lbox - hlen - 4, os.SEEK_CUR) |
|||
else: |
|||
fp.seek(lbox - hlen, os.SEEK_CUR) |
|||
|
|||
if header is None: |
|||
raise SyntaxError("could not find JP2 header") |
|||
|
|||
size = None |
|||
mode = None |
|||
bpc = None |
|||
nc = None |
|||
|
|||
hio = io.BytesIO(header) |
|||
while True: |
|||
lbox, tbox = struct.unpack(">I4s", hio.read(8)) |
|||
if lbox == 1: |
|||
lbox = struct.unpack(">Q", hio.read(8))[0] |
|||
hlen = 16 |
|||
else: |
|||
hlen = 8 |
|||
|
|||
content = hio.read(lbox - hlen) |
|||
|
|||
if tbox == b"ihdr": |
|||
height, width, nc, bpc, c, unkc, ipr = struct.unpack(">IIHBBBB", content) |
|||
size = (width, height) |
|||
if unkc: |
|||
if nc == 1 and (bpc & 0x7F) > 8: |
|||
mode = "I;16" |
|||
elif nc == 1: |
|||
mode = "L" |
|||
elif nc == 2: |
|||
mode = "LA" |
|||
elif nc == 3: |
|||
mode = "RGB" |
|||
elif nc == 4: |
|||
mode = "RGBA" |
|||
break |
|||
elif tbox == b"colr": |
|||
meth, prec, approx = struct.unpack_from(">BBB", content) |
|||
if meth == 1: |
|||
cs = struct.unpack_from(">I", content, 3)[0] |
|||
if cs == 16: # sRGB |
|||
if nc == 1 and (bpc & 0x7F) > 8: |
|||
mode = "I;16" |
|||
elif nc == 1: |
|||
mode = "L" |
|||
elif nc == 3: |
|||
mode = "RGB" |
|||
elif nc == 4: |
|||
mode = "RGBA" |
|||
break |
|||
elif cs == 17: # grayscale |
|||
if nc == 1 and (bpc & 0x7F) > 8: |
|||
mode = "I;16" |
|||
elif nc == 1: |
|||
mode = "L" |
|||
elif nc == 2: |
|||
mode = "LA" |
|||
break |
|||
elif cs == 18: # sYCC |
|||
if nc == 3: |
|||
mode = "RGB" |
|||
elif nc == 4: |
|||
mode = "RGBA" |
|||
break |
|||
|
|||
if size is None or mode is None: |
|||
raise SyntaxError("Malformed jp2 header") |
|||
|
|||
return (size, mode, mimetype) |
|||
|
|||
|
|||
## |
|||
# Image plugin for JPEG2000 images. |
|||
|
|||
|
|||
class Jpeg2KImageFile(ImageFile.ImageFile): |
|||
format = "JPEG2000" |
|||
format_description = "JPEG 2000 (ISO 15444)" |
|||
|
|||
def _open(self): |
|||
sig = self.fp.read(4) |
|||
if sig == b"\xff\x4f\xff\x51": |
|||
self.codec = "j2k" |
|||
self._size, self.mode = _parse_codestream(self.fp) |
|||
else: |
|||
sig = sig + self.fp.read(8) |
|||
|
|||
if sig == b"\x00\x00\x00\x0cjP \x0d\x0a\x87\x0a": |
|||
self.codec = "jp2" |
|||
header = _parse_jp2_header(self.fp) |
|||
self._size, self.mode, self.custom_mimetype = header |
|||
else: |
|||
raise SyntaxError("not a JPEG 2000 file") |
|||
|
|||
if self.size is None or self.mode is None: |
|||
raise SyntaxError("unable to determine size/mode") |
|||
|
|||
self._reduce = 0 |
|||
self.layers = 0 |
|||
|
|||
fd = -1 |
|||
length = -1 |
|||
|
|||
try: |
|||
fd = self.fp.fileno() |
|||
length = os.fstat(fd).st_size |
|||
except Exception: |
|||
fd = -1 |
|||
try: |
|||
pos = self.fp.tell() |
|||
self.fp.seek(0, io.SEEK_END) |
|||
length = self.fp.tell() |
|||
self.fp.seek(pos) |
|||
except Exception: |
|||
length = -1 |
|||
|
|||
self.tile = [ |
|||
( |
|||
"jpeg2k", |
|||
(0, 0) + self.size, |
|||
0, |
|||
(self.codec, self._reduce, self.layers, fd, length), |
|||
) |
|||
] |
|||
|
|||
@property |
|||
def reduce(self): |
|||
# https://github.com/python-pillow/Pillow/issues/4343 found that the |
|||
# new Image 'reduce' method was shadowed by this plugin's 'reduce' |
|||
# property. This attempts to allow for both scenarios |
|||
return self._reduce or super().reduce |
|||
|
|||
@reduce.setter |
|||
def reduce(self, value): |
|||
self._reduce = value |
|||
|
|||
def load(self): |
|||
if self.tile and self._reduce: |
|||
power = 1 << self._reduce |
|||
adjust = power >> 1 |
|||
self._size = ( |
|||
int((self.size[0] + adjust) / power), |
|||
int((self.size[1] + adjust) / power), |
|||
) |
|||
|
|||
# Update the reduce and layers settings |
|||
t = self.tile[0] |
|||
t3 = (t[3][0], self._reduce, self.layers, t[3][3], t[3][4]) |
|||
self.tile = [(t[0], (0, 0) + self.size, t[2], t3)] |
|||
|
|||
return ImageFile.ImageFile.load(self) |
|||
|
|||
|
|||
def _accept(prefix): |
|||
return ( |
|||
prefix[:4] == b"\xff\x4f\xff\x51" |
|||
or prefix[:12] == b"\x00\x00\x00\x0cjP \x0d\x0a\x87\x0a" |
|||
) |
|||
|
|||
|
|||
# ------------------------------------------------------------ |
|||
# Save support |
|||
|
|||
|
|||
def _save(im, fp, filename): |
|||
if filename.endswith(".j2k"): |
|||
kind = "j2k" |
|||
else: |
|||
kind = "jp2" |
|||
|
|||
# Get the keyword arguments |
|||
info = im.encoderinfo |
|||
|
|||
offset = info.get("offset", None) |
|||
tile_offset = info.get("tile_offset", None) |
|||
tile_size = info.get("tile_size", None) |
|||
quality_mode = info.get("quality_mode", "rates") |
|||
quality_layers = info.get("quality_layers", None) |
|||
if quality_layers is not None and not ( |
|||
isinstance(quality_layers, (list, tuple)) |
|||
and all( |
|||
[ |
|||
isinstance(quality_layer, (int, float)) |
|||
for quality_layer in quality_layers |
|||
] |
|||
) |
|||
): |
|||
raise ValueError("quality_layers must be a sequence of numbers") |
|||
|
|||
num_resolutions = info.get("num_resolutions", 0) |
|||
cblk_size = info.get("codeblock_size", None) |
|||
precinct_size = info.get("precinct_size", None) |
|||
irreversible = info.get("irreversible", False) |
|||
progression = info.get("progression", "LRCP") |
|||
cinema_mode = info.get("cinema_mode", "no") |
|||
fd = -1 |
|||
|
|||
if hasattr(fp, "fileno"): |
|||
try: |
|||
fd = fp.fileno() |
|||
except Exception: |
|||
fd = -1 |
|||
|
|||
im.encoderconfig = ( |
|||
offset, |
|||
tile_offset, |
|||
tile_size, |
|||
quality_mode, |
|||
quality_layers, |
|||
num_resolutions, |
|||
cblk_size, |
|||
precinct_size, |
|||
irreversible, |
|||
progression, |
|||
cinema_mode, |
|||
fd, |
|||
) |
|||
|
|||
ImageFile._save(im, fp, [("jpeg2k", (0, 0) + im.size, 0, kind)]) |
|||
|
|||
|
|||
# ------------------------------------------------------------ |
|||
# Registry stuff |
|||
|
|||
|
|||
Image.register_open(Jpeg2KImageFile.format, Jpeg2KImageFile, _accept) |
|||
Image.register_save(Jpeg2KImageFile.format, _save) |
|||
|
|||
Image.register_extensions( |
|||
Jpeg2KImageFile.format, [".jp2", ".j2k", ".jpc", ".jpf", ".jpx", ".j2c"] |
|||
) |
|||
|
|||
Image.register_mime(Jpeg2KImageFile.format, "image/jp2") |
@ -0,0 +1,805 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# JPEG (JFIF) file handling |
|||
# |
|||
# See "Digital Compression and Coding of Continuous-Tone Still Images, |
|||
# Part 1, Requirements and Guidelines" (CCITT T.81 / ISO 10918-1) |
|||
# |
|||
# History: |
|||
# 1995-09-09 fl Created |
|||
# 1995-09-13 fl Added full parser |
|||
# 1996-03-25 fl Added hack to use the IJG command line utilities |
|||
# 1996-05-05 fl Workaround Photoshop 2.5 CMYK polarity bug |
|||
# 1996-05-28 fl Added draft support, JFIF version (0.1) |
|||
# 1996-12-30 fl Added encoder options, added progression property (0.2) |
|||
# 1997-08-27 fl Save mode 1 images as BW (0.3) |
|||
# 1998-07-12 fl Added YCbCr to draft and save methods (0.4) |
|||
# 1998-10-19 fl Don't hang on files using 16-bit DQT's (0.4.1) |
|||
# 2001-04-16 fl Extract DPI settings from JFIF files (0.4.2) |
|||
# 2002-07-01 fl Skip pad bytes before markers; identify Exif files (0.4.3) |
|||
# 2003-04-25 fl Added experimental EXIF decoder (0.5) |
|||
# 2003-06-06 fl Added experimental EXIF GPSinfo decoder |
|||
# 2003-09-13 fl Extract COM markers |
|||
# 2009-09-06 fl Added icc_profile support (from Florian Hoech) |
|||
# 2009-03-06 fl Changed CMYK handling; always use Adobe polarity (0.6) |
|||
# 2009-03-08 fl Added subsampling support (from Justin Huff). |
|||
# |
|||
# Copyright (c) 1997-2003 by Secret Labs AB. |
|||
# Copyright (c) 1995-1996 by Fredrik Lundh. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
import array |
|||
import io |
|||
import os |
|||
import struct |
|||
import subprocess |
|||
import sys |
|||
import tempfile |
|||
import warnings |
|||
|
|||
from . import Image, ImageFile, TiffImagePlugin |
|||
from ._binary import i16be as i16 |
|||
from ._binary import i32be as i32 |
|||
from ._binary import o8 |
|||
from .JpegPresets import presets |
|||
|
|||
# |
|||
# Parser |
|||
|
|||
|
|||
def Skip(self, marker): |
|||
n = i16(self.fp.read(2)) - 2 |
|||
ImageFile._safe_read(self.fp, n) |
|||
|
|||
|
|||
def APP(self, marker): |
|||
# |
|||
# Application marker. Store these in the APP dictionary. |
|||
# Also look for well-known application markers. |
|||
|
|||
n = i16(self.fp.read(2)) - 2 |
|||
s = ImageFile._safe_read(self.fp, n) |
|||
|
|||
app = "APP%d" % (marker & 15) |
|||
|
|||
self.app[app] = s # compatibility |
|||
self.applist.append((app, s)) |
|||
|
|||
if marker == 0xFFE0 and s[:4] == b"JFIF": |
|||
# extract JFIF information |
|||
self.info["jfif"] = version = i16(s, 5) # version |
|||
self.info["jfif_version"] = divmod(version, 256) |
|||
# extract JFIF properties |
|||
try: |
|||
jfif_unit = s[7] |
|||
jfif_density = i16(s, 8), i16(s, 10) |
|||
except Exception: |
|||
pass |
|||
else: |
|||
if jfif_unit == 1: |
|||
self.info["dpi"] = jfif_density |
|||
self.info["jfif_unit"] = jfif_unit |
|||
self.info["jfif_density"] = jfif_density |
|||
elif marker == 0xFFE1 and s[:5] == b"Exif\0": |
|||
if "exif" not in self.info: |
|||
# extract EXIF information (incomplete) |
|||
self.info["exif"] = s # FIXME: value will change |
|||
elif marker == 0xFFE2 and s[:5] == b"FPXR\0": |
|||
# extract FlashPix information (incomplete) |
|||
self.info["flashpix"] = s # FIXME: value will change |
|||
elif marker == 0xFFE2 and s[:12] == b"ICC_PROFILE\0": |
|||
# Since an ICC profile can be larger than the maximum size of |
|||
# a JPEG marker (64K), we need provisions to split it into |
|||
# multiple markers. The format defined by the ICC specifies |
|||
# one or more APP2 markers containing the following data: |
|||
# Identifying string ASCII "ICC_PROFILE\0" (12 bytes) |
|||
# Marker sequence number 1, 2, etc (1 byte) |
|||
# Number of markers Total of APP2's used (1 byte) |
|||
# Profile data (remainder of APP2 data) |
|||
# Decoders should use the marker sequence numbers to |
|||
# reassemble the profile, rather than assuming that the APP2 |
|||
# markers appear in the correct sequence. |
|||
self.icclist.append(s) |
|||
elif marker == 0xFFED and s[:14] == b"Photoshop 3.0\x00": |
|||
# parse the image resource block |
|||
offset = 14 |
|||
photoshop = self.info.setdefault("photoshop", {}) |
|||
while s[offset : offset + 4] == b"8BIM": |
|||
try: |
|||
offset += 4 |
|||
# resource code |
|||
code = i16(s, offset) |
|||
offset += 2 |
|||
# resource name (usually empty) |
|||
name_len = s[offset] |
|||
# name = s[offset+1:offset+1+name_len] |
|||
offset += 1 + name_len |
|||
offset += offset & 1 # align |
|||
# resource data block |
|||
size = i32(s, offset) |
|||
offset += 4 |
|||
data = s[offset : offset + size] |
|||
if code == 0x03ED: # ResolutionInfo |
|||
data = { |
|||
"XResolution": i32(data, 0) / 65536, |
|||
"DisplayedUnitsX": i16(data, 4), |
|||
"YResolution": i32(data, 8) / 65536, |
|||
"DisplayedUnitsY": i16(data, 12), |
|||
} |
|||
photoshop[code] = data |
|||
offset += size |
|||
offset += offset & 1 # align |
|||
except struct.error: |
|||
break # insufficient data |
|||
|
|||
elif marker == 0xFFEE and s[:5] == b"Adobe": |
|||
self.info["adobe"] = i16(s, 5) |
|||
# extract Adobe custom properties |
|||
try: |
|||
adobe_transform = s[1] |
|||
except Exception: |
|||
pass |
|||
else: |
|||
self.info["adobe_transform"] = adobe_transform |
|||
elif marker == 0xFFE2 and s[:4] == b"MPF\0": |
|||
# extract MPO information |
|||
self.info["mp"] = s[4:] |
|||
# offset is current location minus buffer size |
|||
# plus constant header size |
|||
self.info["mpoffset"] = self.fp.tell() - n + 4 |
|||
|
|||
# If DPI isn't in JPEG header, fetch from EXIF |
|||
if "dpi" not in self.info and "exif" in self.info: |
|||
try: |
|||
exif = self.getexif() |
|||
resolution_unit = exif[0x0128] |
|||
x_resolution = exif[0x011A] |
|||
try: |
|||
dpi = float(x_resolution[0]) / x_resolution[1] |
|||
except TypeError: |
|||
dpi = x_resolution |
|||
if resolution_unit == 3: # cm |
|||
# 1 dpcm = 2.54 dpi |
|||
dpi *= 2.54 |
|||
self.info["dpi"] = int(dpi + 0.5), int(dpi + 0.5) |
|||
except (KeyError, SyntaxError, ValueError, ZeroDivisionError): |
|||
# SyntaxError for invalid/unreadable EXIF |
|||
# KeyError for dpi not included |
|||
# ZeroDivisionError for invalid dpi rational value |
|||
# ValueError for x_resolution[0] being an invalid float |
|||
self.info["dpi"] = 72, 72 |
|||
|
|||
|
|||
def COM(self, marker): |
|||
# |
|||
# Comment marker. Store these in the APP dictionary. |
|||
n = i16(self.fp.read(2)) - 2 |
|||
s = ImageFile._safe_read(self.fp, n) |
|||
|
|||
self.info["comment"] = s |
|||
self.app["COM"] = s # compatibility |
|||
self.applist.append(("COM", s)) |
|||
|
|||
|
|||
def SOF(self, marker): |
|||
# |
|||
# Start of frame marker. Defines the size and mode of the |
|||
# image. JPEG is colour blind, so we use some simple |
|||
# heuristics to map the number of layers to an appropriate |
|||
# mode. Note that this could be made a bit brighter, by |
|||
# looking for JFIF and Adobe APP markers. |
|||
|
|||
n = i16(self.fp.read(2)) - 2 |
|||
s = ImageFile._safe_read(self.fp, n) |
|||
self._size = i16(s, 3), i16(s, 1) |
|||
|
|||
self.bits = s[0] |
|||
if self.bits != 8: |
|||
raise SyntaxError(f"cannot handle {self.bits}-bit layers") |
|||
|
|||
self.layers = s[5] |
|||
if self.layers == 1: |
|||
self.mode = "L" |
|||
elif self.layers == 3: |
|||
self.mode = "RGB" |
|||
elif self.layers == 4: |
|||
self.mode = "CMYK" |
|||
else: |
|||
raise SyntaxError(f"cannot handle {self.layers}-layer images") |
|||
|
|||
if marker in [0xFFC2, 0xFFC6, 0xFFCA, 0xFFCE]: |
|||
self.info["progressive"] = self.info["progression"] = 1 |
|||
|
|||
if self.icclist: |
|||
# fixup icc profile |
|||
self.icclist.sort() # sort by sequence number |
|||
if self.icclist[0][13] == len(self.icclist): |
|||
profile = [] |
|||
for p in self.icclist: |
|||
profile.append(p[14:]) |
|||
icc_profile = b"".join(profile) |
|||
else: |
|||
icc_profile = None # wrong number of fragments |
|||
self.info["icc_profile"] = icc_profile |
|||
self.icclist = [] |
|||
|
|||
for i in range(6, len(s), 3): |
|||
t = s[i : i + 3] |
|||
# 4-tuples: id, vsamp, hsamp, qtable |
|||
self.layer.append((t[0], t[1] // 16, t[1] & 15, t[2])) |
|||
|
|||
|
|||
def DQT(self, marker): |
|||
# |
|||
# Define quantization table. Note that there might be more |
|||
# than one table in each marker. |
|||
|
|||
# FIXME: The quantization tables can be used to estimate the |
|||
# compression quality. |
|||
|
|||
n = i16(self.fp.read(2)) - 2 |
|||
s = ImageFile._safe_read(self.fp, n) |
|||
while len(s): |
|||
v = s[0] |
|||
precision = 1 if (v // 16 == 0) else 2 # in bytes |
|||
qt_length = 1 + precision * 64 |
|||
if len(s) < qt_length: |
|||
raise SyntaxError("bad quantization table marker") |
|||
data = array.array("B" if precision == 1 else "H", s[1:qt_length]) |
|||
if sys.byteorder == "little" and precision > 1: |
|||
data.byteswap() # the values are always big-endian |
|||
self.quantization[v & 15] = data |
|||
s = s[qt_length:] |
|||
|
|||
|
|||
# |
|||
# JPEG marker table |
|||
|
|||
MARKER = { |
|||
0xFFC0: ("SOF0", "Baseline DCT", SOF), |
|||
0xFFC1: ("SOF1", "Extended Sequential DCT", SOF), |
|||
0xFFC2: ("SOF2", "Progressive DCT", SOF), |
|||
0xFFC3: ("SOF3", "Spatial lossless", SOF), |
|||
0xFFC4: ("DHT", "Define Huffman table", Skip), |
|||
0xFFC5: ("SOF5", "Differential sequential DCT", SOF), |
|||
0xFFC6: ("SOF6", "Differential progressive DCT", SOF), |
|||
0xFFC7: ("SOF7", "Differential spatial", SOF), |
|||
0xFFC8: ("JPG", "Extension", None), |
|||
0xFFC9: ("SOF9", "Extended sequential DCT (AC)", SOF), |
|||
0xFFCA: ("SOF10", "Progressive DCT (AC)", SOF), |
|||
0xFFCB: ("SOF11", "Spatial lossless DCT (AC)", SOF), |
|||
0xFFCC: ("DAC", "Define arithmetic coding conditioning", Skip), |
|||
0xFFCD: ("SOF13", "Differential sequential DCT (AC)", SOF), |
|||
0xFFCE: ("SOF14", "Differential progressive DCT (AC)", SOF), |
|||
0xFFCF: ("SOF15", "Differential spatial (AC)", SOF), |
|||
0xFFD0: ("RST0", "Restart 0", None), |
|||
0xFFD1: ("RST1", "Restart 1", None), |
|||
0xFFD2: ("RST2", "Restart 2", None), |
|||
0xFFD3: ("RST3", "Restart 3", None), |
|||
0xFFD4: ("RST4", "Restart 4", None), |
|||
0xFFD5: ("RST5", "Restart 5", None), |
|||
0xFFD6: ("RST6", "Restart 6", None), |
|||
0xFFD7: ("RST7", "Restart 7", None), |
|||
0xFFD8: ("SOI", "Start of image", None), |
|||
0xFFD9: ("EOI", "End of image", None), |
|||
0xFFDA: ("SOS", "Start of scan", Skip), |
|||
0xFFDB: ("DQT", "Define quantization table", DQT), |
|||
0xFFDC: ("DNL", "Define number of lines", Skip), |
|||
0xFFDD: ("DRI", "Define restart interval", Skip), |
|||
0xFFDE: ("DHP", "Define hierarchical progression", SOF), |
|||
0xFFDF: ("EXP", "Expand reference component", Skip), |
|||
0xFFE0: ("APP0", "Application segment 0", APP), |
|||
0xFFE1: ("APP1", "Application segment 1", APP), |
|||
0xFFE2: ("APP2", "Application segment 2", APP), |
|||
0xFFE3: ("APP3", "Application segment 3", APP), |
|||
0xFFE4: ("APP4", "Application segment 4", APP), |
|||
0xFFE5: ("APP5", "Application segment 5", APP), |
|||
0xFFE6: ("APP6", "Application segment 6", APP), |
|||
0xFFE7: ("APP7", "Application segment 7", APP), |
|||
0xFFE8: ("APP8", "Application segment 8", APP), |
|||
0xFFE9: ("APP9", "Application segment 9", APP), |
|||
0xFFEA: ("APP10", "Application segment 10", APP), |
|||
0xFFEB: ("APP11", "Application segment 11", APP), |
|||
0xFFEC: ("APP12", "Application segment 12", APP), |
|||
0xFFED: ("APP13", "Application segment 13", APP), |
|||
0xFFEE: ("APP14", "Application segment 14", APP), |
|||
0xFFEF: ("APP15", "Application segment 15", APP), |
|||
0xFFF0: ("JPG0", "Extension 0", None), |
|||
0xFFF1: ("JPG1", "Extension 1", None), |
|||
0xFFF2: ("JPG2", "Extension 2", None), |
|||
0xFFF3: ("JPG3", "Extension 3", None), |
|||
0xFFF4: ("JPG4", "Extension 4", None), |
|||
0xFFF5: ("JPG5", "Extension 5", None), |
|||
0xFFF6: ("JPG6", "Extension 6", None), |
|||
0xFFF7: ("JPG7", "Extension 7", None), |
|||
0xFFF8: ("JPG8", "Extension 8", None), |
|||
0xFFF9: ("JPG9", "Extension 9", None), |
|||
0xFFFA: ("JPG10", "Extension 10", None), |
|||
0xFFFB: ("JPG11", "Extension 11", None), |
|||
0xFFFC: ("JPG12", "Extension 12", None), |
|||
0xFFFD: ("JPG13", "Extension 13", None), |
|||
0xFFFE: ("COM", "Comment", COM), |
|||
} |
|||
|
|||
|
|||
def _accept(prefix): |
|||
# Magic number was taken from https://en.wikipedia.org/wiki/JPEG |
|||
return prefix[0:3] == b"\xFF\xD8\xFF" |
|||
|
|||
|
|||
## |
|||
# Image plugin for JPEG and JFIF images. |
|||
|
|||
|
|||
class JpegImageFile(ImageFile.ImageFile): |
|||
|
|||
format = "JPEG" |
|||
format_description = "JPEG (ISO 10918)" |
|||
|
|||
def _open(self): |
|||
|
|||
s = self.fp.read(3) |
|||
|
|||
if not _accept(s): |
|||
raise SyntaxError("not a JPEG file") |
|||
s = b"\xFF" |
|||
|
|||
# Create attributes |
|||
self.bits = self.layers = 0 |
|||
|
|||
# JPEG specifics (internal) |
|||
self.layer = [] |
|||
self.huffman_dc = {} |
|||
self.huffman_ac = {} |
|||
self.quantization = {} |
|||
self.app = {} # compatibility |
|||
self.applist = [] |
|||
self.icclist = [] |
|||
|
|||
while True: |
|||
|
|||
i = s[0] |
|||
if i == 0xFF: |
|||
s = s + self.fp.read(1) |
|||
i = i16(s) |
|||
else: |
|||
# Skip non-0xFF junk |
|||
s = self.fp.read(1) |
|||
continue |
|||
|
|||
if i in MARKER: |
|||
name, description, handler = MARKER[i] |
|||
if handler is not None: |
|||
handler(self, i) |
|||
if i == 0xFFDA: # start of scan |
|||
rawmode = self.mode |
|||
if self.mode == "CMYK": |
|||
rawmode = "CMYK;I" # assume adobe conventions |
|||
self.tile = [("jpeg", (0, 0) + self.size, 0, (rawmode, ""))] |
|||
# self.__offset = self.fp.tell() |
|||
break |
|||
s = self.fp.read(1) |
|||
elif i == 0 or i == 0xFFFF: |
|||
# padded marker or junk; move on |
|||
s = b"\xff" |
|||
elif i == 0xFF00: # Skip extraneous data (escaped 0xFF) |
|||
s = self.fp.read(1) |
|||
else: |
|||
raise SyntaxError("no marker found") |
|||
|
|||
def load_read(self, read_bytes): |
|||
""" |
|||
internal: read more image data |
|||
For premature EOF and LOAD_TRUNCATED_IMAGES adds EOI marker |
|||
so libjpeg can finish decoding |
|||
""" |
|||
s = self.fp.read(read_bytes) |
|||
|
|||
if not s and ImageFile.LOAD_TRUNCATED_IMAGES: |
|||
# Premature EOF. |
|||
# Pretend file is finished adding EOI marker |
|||
return b"\xFF\xD9" |
|||
|
|||
return s |
|||
|
|||
def draft(self, mode, size): |
|||
|
|||
if len(self.tile) != 1: |
|||
return |
|||
|
|||
# Protect from second call |
|||
if self.decoderconfig: |
|||
return |
|||
|
|||
d, e, o, a = self.tile[0] |
|||
scale = 1 |
|||
original_size = self.size |
|||
|
|||
if a[0] == "RGB" and mode in ["L", "YCbCr"]: |
|||
self.mode = mode |
|||
a = mode, "" |
|||
|
|||
if size: |
|||
scale = min(self.size[0] // size[0], self.size[1] // size[1]) |
|||
for s in [8, 4, 2, 1]: |
|||
if scale >= s: |
|||
break |
|||
e = ( |
|||
e[0], |
|||
e[1], |
|||
(e[2] - e[0] + s - 1) // s + e[0], |
|||
(e[3] - e[1] + s - 1) // s + e[1], |
|||
) |
|||
self._size = ((self.size[0] + s - 1) // s, (self.size[1] + s - 1) // s) |
|||
scale = s |
|||
|
|||
self.tile = [(d, e, o, a)] |
|||
self.decoderconfig = (scale, 0) |
|||
|
|||
box = (0, 0, original_size[0] / scale, original_size[1] / scale) |
|||
return (self.mode, box) |
|||
|
|||
def load_djpeg(self): |
|||
|
|||
# ALTERNATIVE: handle JPEGs via the IJG command line utilities |
|||
|
|||
f, path = tempfile.mkstemp() |
|||
os.close(f) |
|||
if os.path.exists(self.filename): |
|||
subprocess.check_call(["djpeg", "-outfile", path, self.filename]) |
|||
else: |
|||
raise ValueError("Invalid Filename") |
|||
|
|||
try: |
|||
with Image.open(path) as _im: |
|||
_im.load() |
|||
self.im = _im.im |
|||
finally: |
|||
try: |
|||
os.unlink(path) |
|||
except OSError: |
|||
pass |
|||
|
|||
self.mode = self.im.mode |
|||
self._size = self.im.size |
|||
|
|||
self.tile = [] |
|||
|
|||
def _getexif(self): |
|||
return _getexif(self) |
|||
|
|||
def _getmp(self): |
|||
return _getmp(self) |
|||
|
|||
|
|||
def _getexif(self): |
|||
if "exif" not in self.info: |
|||
return None |
|||
return dict(self.getexif()) |
|||
|
|||
|
|||
def _getmp(self): |
|||
# Extract MP information. This method was inspired by the "highly |
|||
# experimental" _getexif version that's been in use for years now, |
|||
# itself based on the ImageFileDirectory class in the TIFF plugin. |
|||
|
|||
# The MP record essentially consists of a TIFF file embedded in a JPEG |
|||
# application marker. |
|||
try: |
|||
data = self.info["mp"] |
|||
except KeyError: |
|||
return None |
|||
file_contents = io.BytesIO(data) |
|||
head = file_contents.read(8) |
|||
endianness = ">" if head[:4] == b"\x4d\x4d\x00\x2a" else "<" |
|||
# process dictionary |
|||
try: |
|||
info = TiffImagePlugin.ImageFileDirectory_v2(head) |
|||
file_contents.seek(info.next) |
|||
info.load(file_contents) |
|||
mp = dict(info) |
|||
except Exception as e: |
|||
raise SyntaxError("malformed MP Index (unreadable directory)") from e |
|||
# it's an error not to have a number of images |
|||
try: |
|||
quant = mp[0xB001] |
|||
except KeyError as e: |
|||
raise SyntaxError("malformed MP Index (no number of images)") from e |
|||
# get MP entries |
|||
mpentries = [] |
|||
try: |
|||
rawmpentries = mp[0xB002] |
|||
for entrynum in range(0, quant): |
|||
unpackedentry = struct.unpack_from( |
|||
f"{endianness}LLLHH", rawmpentries, entrynum * 16 |
|||
) |
|||
labels = ("Attribute", "Size", "DataOffset", "EntryNo1", "EntryNo2") |
|||
mpentry = dict(zip(labels, unpackedentry)) |
|||
mpentryattr = { |
|||
"DependentParentImageFlag": bool(mpentry["Attribute"] & (1 << 31)), |
|||
"DependentChildImageFlag": bool(mpentry["Attribute"] & (1 << 30)), |
|||
"RepresentativeImageFlag": bool(mpentry["Attribute"] & (1 << 29)), |
|||
"Reserved": (mpentry["Attribute"] & (3 << 27)) >> 27, |
|||
"ImageDataFormat": (mpentry["Attribute"] & (7 << 24)) >> 24, |
|||
"MPType": mpentry["Attribute"] & 0x00FFFFFF, |
|||
} |
|||
if mpentryattr["ImageDataFormat"] == 0: |
|||
mpentryattr["ImageDataFormat"] = "JPEG" |
|||
else: |
|||
raise SyntaxError("unsupported picture format in MPO") |
|||
mptypemap = { |
|||
0x000000: "Undefined", |
|||
0x010001: "Large Thumbnail (VGA Equivalent)", |
|||
0x010002: "Large Thumbnail (Full HD Equivalent)", |
|||
0x020001: "Multi-Frame Image (Panorama)", |
|||
0x020002: "Multi-Frame Image: (Disparity)", |
|||
0x020003: "Multi-Frame Image: (Multi-Angle)", |
|||
0x030000: "Baseline MP Primary Image", |
|||
} |
|||
mpentryattr["MPType"] = mptypemap.get(mpentryattr["MPType"], "Unknown") |
|||
mpentry["Attribute"] = mpentryattr |
|||
mpentries.append(mpentry) |
|||
mp[0xB002] = mpentries |
|||
except KeyError as e: |
|||
raise SyntaxError("malformed MP Index (bad MP Entry)") from e |
|||
# Next we should try and parse the individual image unique ID list; |
|||
# we don't because I've never seen this actually used in a real MPO |
|||
# file and so can't test it. |
|||
return mp |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# stuff to save JPEG files |
|||
|
|||
RAWMODE = { |
|||
"1": "L", |
|||
"L": "L", |
|||
"RGB": "RGB", |
|||
"RGBX": "RGB", |
|||
"CMYK": "CMYK;I", # assume adobe conventions |
|||
"YCbCr": "YCbCr", |
|||
} |
|||
|
|||
# fmt: off |
|||
zigzag_index = ( |
|||
0, 1, 5, 6, 14, 15, 27, 28, |
|||
2, 4, 7, 13, 16, 26, 29, 42, |
|||
3, 8, 12, 17, 25, 30, 41, 43, |
|||
9, 11, 18, 24, 31, 40, 44, 53, |
|||
10, 19, 23, 32, 39, 45, 52, 54, |
|||
20, 22, 33, 38, 46, 51, 55, 60, |
|||
21, 34, 37, 47, 50, 56, 59, 61, |
|||
35, 36, 48, 49, 57, 58, 62, 63, |
|||
) |
|||
|
|||
samplings = { |
|||
(1, 1, 1, 1, 1, 1): 0, |
|||
(2, 1, 1, 1, 1, 1): 1, |
|||
(2, 2, 1, 1, 1, 1): 2, |
|||
} |
|||
# fmt: on |
|||
|
|||
|
|||
def convert_dict_qtables(qtables): |
|||
qtables = [qtables[key] for key in range(len(qtables)) if key in qtables] |
|||
for idx, table in enumerate(qtables): |
|||
qtables[idx] = [table[i] for i in zigzag_index] |
|||
return qtables |
|||
|
|||
|
|||
def get_sampling(im): |
|||
# There's no subsampling when images have only 1 layer |
|||
# (grayscale images) or when they are CMYK (4 layers), |
|||
# so set subsampling to the default value. |
|||
# |
|||
# NOTE: currently Pillow can't encode JPEG to YCCK format. |
|||
# If YCCK support is added in the future, subsampling code will have |
|||
# to be updated (here and in JpegEncode.c) to deal with 4 layers. |
|||
if not hasattr(im, "layers") or im.layers in (1, 4): |
|||
return -1 |
|||
sampling = im.layer[0][1:3] + im.layer[1][1:3] + im.layer[2][1:3] |
|||
return samplings.get(sampling, -1) |
|||
|
|||
|
|||
def _save(im, fp, filename): |
|||
|
|||
try: |
|||
rawmode = RAWMODE[im.mode] |
|||
except KeyError as e: |
|||
raise OSError(f"cannot write mode {im.mode} as JPEG") from e |
|||
|
|||
info = im.encoderinfo |
|||
|
|||
dpi = [round(x) for x in info.get("dpi", (0, 0))] |
|||
|
|||
quality = info.get("quality", -1) |
|||
subsampling = info.get("subsampling", -1) |
|||
qtables = info.get("qtables") |
|||
|
|||
if quality == "keep": |
|||
quality = -1 |
|||
subsampling = "keep" |
|||
qtables = "keep" |
|||
elif quality in presets: |
|||
preset = presets[quality] |
|||
quality = -1 |
|||
subsampling = preset.get("subsampling", -1) |
|||
qtables = preset.get("quantization") |
|||
elif not isinstance(quality, int): |
|||
raise ValueError("Invalid quality setting") |
|||
else: |
|||
if subsampling in presets: |
|||
subsampling = presets[subsampling].get("subsampling", -1) |
|||
if isinstance(qtables, str) and qtables in presets: |
|||
qtables = presets[qtables].get("quantization") |
|||
|
|||
if subsampling == "4:4:4": |
|||
subsampling = 0 |
|||
elif subsampling == "4:2:2": |
|||
subsampling = 1 |
|||
elif subsampling == "4:2:0": |
|||
subsampling = 2 |
|||
elif subsampling == "4:1:1": |
|||
# For compatibility. Before Pillow 4.3, 4:1:1 actually meant 4:2:0. |
|||
# Set 4:2:0 if someone is still using that value. |
|||
subsampling = 2 |
|||
elif subsampling == "keep": |
|||
if im.format != "JPEG": |
|||
raise ValueError("Cannot use 'keep' when original image is not a JPEG") |
|||
subsampling = get_sampling(im) |
|||
|
|||
def validate_qtables(qtables): |
|||
if qtables is None: |
|||
return qtables |
|||
if isinstance(qtables, str): |
|||
try: |
|||
lines = [ |
|||
int(num) |
|||
for line in qtables.splitlines() |
|||
for num in line.split("#", 1)[0].split() |
|||
] |
|||
except ValueError as e: |
|||
raise ValueError("Invalid quantization table") from e |
|||
else: |
|||
qtables = [lines[s : s + 64] for s in range(0, len(lines), 64)] |
|||
if isinstance(qtables, (tuple, list, dict)): |
|||
if isinstance(qtables, dict): |
|||
qtables = convert_dict_qtables(qtables) |
|||
elif isinstance(qtables, tuple): |
|||
qtables = list(qtables) |
|||
if not (0 < len(qtables) < 5): |
|||
raise ValueError("None or too many quantization tables") |
|||
for idx, table in enumerate(qtables): |
|||
try: |
|||
if len(table) != 64: |
|||
raise TypeError |
|||
table = array.array("H", table) |
|||
except TypeError as e: |
|||
raise ValueError("Invalid quantization table") from e |
|||
else: |
|||
qtables[idx] = list(table) |
|||
return qtables |
|||
|
|||
if qtables == "keep": |
|||
if im.format != "JPEG": |
|||
raise ValueError("Cannot use 'keep' when original image is not a JPEG") |
|||
qtables = getattr(im, "quantization", None) |
|||
qtables = validate_qtables(qtables) |
|||
|
|||
extra = b"" |
|||
|
|||
icc_profile = info.get("icc_profile") |
|||
if icc_profile: |
|||
ICC_OVERHEAD_LEN = 14 |
|||
MAX_BYTES_IN_MARKER = 65533 |
|||
MAX_DATA_BYTES_IN_MARKER = MAX_BYTES_IN_MARKER - ICC_OVERHEAD_LEN |
|||
markers = [] |
|||
while icc_profile: |
|||
markers.append(icc_profile[:MAX_DATA_BYTES_IN_MARKER]) |
|||
icc_profile = icc_profile[MAX_DATA_BYTES_IN_MARKER:] |
|||
i = 1 |
|||
for marker in markers: |
|||
size = struct.pack(">H", 2 + ICC_OVERHEAD_LEN + len(marker)) |
|||
extra += ( |
|||
b"\xFF\xE2" |
|||
+ size |
|||
+ b"ICC_PROFILE\0" |
|||
+ o8(i) |
|||
+ o8(len(markers)) |
|||
+ marker |
|||
) |
|||
i += 1 |
|||
|
|||
# "progressive" is the official name, but older documentation |
|||
# says "progression" |
|||
# FIXME: issue a warning if the wrong form is used (post-1.1.7) |
|||
progressive = info.get("progressive", False) or info.get("progression", False) |
|||
|
|||
optimize = info.get("optimize", False) |
|||
|
|||
exif = info.get("exif", b"") |
|||
if isinstance(exif, Image.Exif): |
|||
exif = exif.tobytes() |
|||
|
|||
# get keyword arguments |
|||
im.encoderconfig = ( |
|||
quality, |
|||
progressive, |
|||
info.get("smooth", 0), |
|||
optimize, |
|||
info.get("streamtype", 0), |
|||
dpi[0], |
|||
dpi[1], |
|||
subsampling, |
|||
qtables, |
|||
extra, |
|||
exif, |
|||
) |
|||
|
|||
# if we optimize, libjpeg needs a buffer big enough to hold the whole image |
|||
# in a shot. Guessing on the size, at im.size bytes. (raw pixel size is |
|||
# channels*size, this is a value that's been used in a django patch. |
|||
# https://github.com/matthewwithanm/django-imagekit/issues/50 |
|||
bufsize = 0 |
|||
if optimize or progressive: |
|||
# CMYK can be bigger |
|||
if im.mode == "CMYK": |
|||
bufsize = 4 * im.size[0] * im.size[1] |
|||
# keep sets quality to -1, but the actual value may be high. |
|||
elif quality >= 95 or quality == -1: |
|||
bufsize = 2 * im.size[0] * im.size[1] |
|||
else: |
|||
bufsize = im.size[0] * im.size[1] |
|||
|
|||
# The EXIF info needs to be written as one block, + APP1, + one spare byte. |
|||
# Ensure that our buffer is big enough. Same with the icc_profile block. |
|||
bufsize = max(ImageFile.MAXBLOCK, bufsize, len(exif) + 5, len(extra) + 1) |
|||
|
|||
ImageFile._save(im, fp, [("jpeg", (0, 0) + im.size, 0, rawmode)], bufsize) |
|||
|
|||
|
|||
def _save_cjpeg(im, fp, filename): |
|||
# ALTERNATIVE: handle JPEGs via the IJG command line utilities. |
|||
tempfile = im._dump() |
|||
subprocess.check_call(["cjpeg", "-outfile", filename, tempfile]) |
|||
try: |
|||
os.unlink(tempfile) |
|||
except OSError: |
|||
pass |
|||
|
|||
|
|||
## |
|||
# Factory for making JPEG and MPO instances |
|||
def jpeg_factory(fp=None, filename=None): |
|||
im = JpegImageFile(fp, filename) |
|||
try: |
|||
mpheader = im._getmp() |
|||
if mpheader[45057] > 1: |
|||
# It's actually an MPO |
|||
from .MpoImagePlugin import MpoImageFile |
|||
|
|||
# Don't reload everything, just convert it. |
|||
im = MpoImageFile.adopt(im, mpheader) |
|||
except (TypeError, IndexError): |
|||
# It is really a JPEG |
|||
pass |
|||
except SyntaxError: |
|||
warnings.warn( |
|||
"Image appears to be a malformed MPO file, it will be " |
|||
"interpreted as a base JPEG file" |
|||
) |
|||
return im |
|||
|
|||
|
|||
# --------------------------------------------------------------------- |
|||
# Registry stuff |
|||
|
|||
Image.register_open(JpegImageFile.format, jpeg_factory, _accept) |
|||
Image.register_save(JpegImageFile.format, _save) |
|||
|
|||
Image.register_extensions(JpegImageFile.format, [".jfif", ".jpe", ".jpg", ".jpeg"]) |
|||
|
|||
Image.register_mime(JpegImageFile.format, "image/jpeg") |
@ -0,0 +1,248 @@ |
|||
""" |
|||
JPEG quality settings equivalent to the Photoshop settings. |
|||
Can be used when saving JPEG files. |
|||
|
|||
The following presets are available by default: |
|||
``web_low``, ``web_medium``, ``web_high``, ``web_very_high``, ``web_maximum``, |
|||
``low``, ``medium``, ``high``, ``maximum``. |
|||
More presets can be added to the :py:data:`presets` dict if needed. |
|||
|
|||
To apply the preset, specify:: |
|||
|
|||
quality="preset_name" |
|||
|
|||
To apply only the quantization table:: |
|||
|
|||
qtables="preset_name" |
|||
|
|||
To apply only the subsampling setting:: |
|||
|
|||
subsampling="preset_name" |
|||
|
|||
Example:: |
|||
|
|||
im.save("image_name.jpg", quality="web_high") |
|||
|
|||
Subsampling |
|||
----------- |
|||
|
|||
Subsampling is the practice of encoding images by implementing less resolution |
|||
for chroma information than for luma information. |
|||
(ref.: https://en.wikipedia.org/wiki/Chroma_subsampling) |
|||
|
|||
Possible subsampling values are 0, 1 and 2 that correspond to 4:4:4, 4:2:2 and |
|||
4:2:0. |
|||
|
|||
You can get the subsampling of a JPEG with the |
|||
:func:`.JpegImagePlugin.get_sampling` function. |
|||
|
|||
In JPEG compressed data a JPEG marker is used instead of an EXIF tag. |
|||
(ref.: https://www.exiv2.org/tags.html) |
|||
|
|||
|
|||
Quantization tables |
|||
------------------- |
|||
|
|||
They are values use by the DCT (Discrete cosine transform) to remove |
|||
*unnecessary* information from the image (the lossy part of the compression). |
|||
(ref.: https://en.wikipedia.org/wiki/Quantization_matrix#Quantization_matrices, |
|||
https://en.wikipedia.org/wiki/JPEG#Quantization) |
|||
|
|||
You can get the quantization tables of a JPEG with:: |
|||
|
|||
im.quantization |
|||
|
|||
This will return a dict with a number of arrays. You can pass this dict |
|||
directly as the qtables argument when saving a JPEG. |
|||
|
|||
The tables format between im.quantization and quantization in presets differ in |
|||
3 ways: |
|||
|
|||
1. The base container of the preset is a list with sublists instead of dict. |
|||
dict[0] -> list[0], dict[1] -> list[1], ... |
|||
2. Each table in a preset is a list instead of an array. |
|||
3. The zigzag order is remove in the preset (needed by libjpeg >= 6a). |
|||
|
|||
You can convert the dict format to the preset format with the |
|||
:func:`.JpegImagePlugin.convert_dict_qtables()` function. |
|||
|
|||
Libjpeg ref.: |
|||
https://web.archive.org/web/20120328125543/http://www.jpegcameras.com/libjpeg/libjpeg-3.html |
|||
|
|||
""" |
|||
|
|||
# fmt: off |
|||
presets = { |
|||
'web_low': {'subsampling': 2, # "4:2:0" |
|||
'quantization': [ |
|||
[20, 16, 25, 39, 50, 46, 62, 68, |
|||
16, 18, 23, 38, 38, 53, 65, 68, |
|||
25, 23, 31, 38, 53, 65, 68, 68, |
|||
39, 38, 38, 53, 65, 68, 68, 68, |
|||
50, 38, 53, 65, 68, 68, 68, 68, |
|||
46, 53, 65, 68, 68, 68, 68, 68, |
|||
62, 65, 68, 68, 68, 68, 68, 68, |
|||
68, 68, 68, 68, 68, 68, 68, 68], |
|||
[21, 25, 32, 38, 54, 68, 68, 68, |
|||
25, 28, 24, 38, 54, 68, 68, 68, |
|||
32, 24, 32, 43, 66, 68, 68, 68, |
|||
38, 38, 43, 53, 68, 68, 68, 68, |
|||
54, 54, 66, 68, 68, 68, 68, 68, |
|||
68, 68, 68, 68, 68, 68, 68, 68, |
|||
68, 68, 68, 68, 68, 68, 68, 68, |
|||
68, 68, 68, 68, 68, 68, 68, 68] |
|||
]}, |
|||
'web_medium': {'subsampling': 2, # "4:2:0" |
|||
'quantization': [ |
|||
[16, 11, 11, 16, 23, 27, 31, 30, |
|||
11, 12, 12, 15, 20, 23, 23, 30, |
|||
11, 12, 13, 16, 23, 26, 35, 47, |
|||
16, 15, 16, 23, 26, 37, 47, 64, |
|||
23, 20, 23, 26, 39, 51, 64, 64, |
|||
27, 23, 26, 37, 51, 64, 64, 64, |
|||
31, 23, 35, 47, 64, 64, 64, 64, |
|||
30, 30, 47, 64, 64, 64, 64, 64], |
|||
[17, 15, 17, 21, 20, 26, 38, 48, |
|||
15, 19, 18, 17, 20, 26, 35, 43, |
|||
17, 18, 20, 22, 26, 30, 46, 53, |
|||
21, 17, 22, 28, 30, 39, 53, 64, |
|||
20, 20, 26, 30, 39, 48, 64, 64, |
|||
26, 26, 30, 39, 48, 63, 64, 64, |
|||
38, 35, 46, 53, 64, 64, 64, 64, |
|||
48, 43, 53, 64, 64, 64, 64, 64] |
|||
]}, |
|||
'web_high': {'subsampling': 0, # "4:4:4" |
|||
'quantization': [ |
|||
[6, 4, 4, 6, 9, 11, 12, 16, |
|||
4, 5, 5, 6, 8, 10, 12, 12, |
|||
4, 5, 5, 6, 10, 12, 14, 19, |
|||
6, 6, 6, 11, 12, 15, 19, 28, |
|||
9, 8, 10, 12, 16, 20, 27, 31, |
|||
11, 10, 12, 15, 20, 27, 31, 31, |
|||
12, 12, 14, 19, 27, 31, 31, 31, |
|||
16, 12, 19, 28, 31, 31, 31, 31], |
|||
[7, 7, 13, 24, 26, 31, 31, 31, |
|||
7, 12, 16, 21, 31, 31, 31, 31, |
|||
13, 16, 17, 31, 31, 31, 31, 31, |
|||
24, 21, 31, 31, 31, 31, 31, 31, |
|||
26, 31, 31, 31, 31, 31, 31, 31, |
|||
31, 31, 31, 31, 31, 31, 31, 31, |
|||
31, 31, 31, 31, 31, 31, 31, 31, |
|||
31, 31, 31, 31, 31, 31, 31, 31] |
|||
]}, |
|||
'web_very_high': {'subsampling': 0, # "4:4:4" |
|||
'quantization': [ |
|||
[2, 2, 2, 2, 3, 4, 5, 6, |
|||
2, 2, 2, 2, 3, 4, 5, 6, |
|||
2, 2, 2, 2, 4, 5, 7, 9, |
|||
2, 2, 2, 4, 5, 7, 9, 12, |
|||
3, 3, 4, 5, 8, 10, 12, 12, |
|||
4, 4, 5, 7, 10, 12, 12, 12, |
|||
5, 5, 7, 9, 12, 12, 12, 12, |
|||
6, 6, 9, 12, 12, 12, 12, 12], |
|||
[3, 3, 5, 9, 13, 15, 15, 15, |
|||
3, 4, 6, 11, 14, 12, 12, 12, |
|||
5, 6, 9, 14, 12, 12, 12, 12, |
|||
9, 11, 14, 12, 12, 12, 12, 12, |
|||
13, 14, 12, 12, 12, 12, 12, 12, |
|||
15, 12, 12, 12, 12, 12, 12, 12, |
|||
15, 12, 12, 12, 12, 12, 12, 12, |
|||
15, 12, 12, 12, 12, 12, 12, 12] |
|||
]}, |
|||
'web_maximum': {'subsampling': 0, # "4:4:4" |
|||
'quantization': [ |
|||
[1, 1, 1, 1, 1, 1, 1, 1, |
|||
1, 1, 1, 1, 1, 1, 1, 1, |
|||
1, 1, 1, 1, 1, 1, 1, 2, |
|||
1, 1, 1, 1, 1, 1, 2, 2, |
|||
1, 1, 1, 1, 1, 2, 2, 3, |
|||
1, 1, 1, 1, 2, 2, 3, 3, |
|||
1, 1, 1, 2, 2, 3, 3, 3, |
|||
1, 1, 2, 2, 3, 3, 3, 3], |
|||
[1, 1, 1, 2, 2, 3, 3, 3, |
|||
1, 1, 1, 2, 3, 3, 3, 3, |
|||
1, 1, 1, 3, 3, 3, 3, 3, |
|||
2, 2, 3, 3, 3, 3, 3, 3, |
|||
2, 3, 3, 3, 3, 3, 3, 3, |
|||
3, 3, 3, 3, 3, 3, 3, 3, |
|||
3, 3, 3, 3, 3, 3, 3, 3, |
|||
3, 3, 3, 3, 3, 3, 3, 3] |
|||
]}, |
|||
'low': {'subsampling': 2, # "4:2:0" |
|||
'quantization': [ |
|||
[18, 14, 14, 21, 30, 35, 34, 17, |
|||
14, 16, 16, 19, 26, 23, 12, 12, |
|||
14, 16, 17, 21, 23, 12, 12, 12, |
|||
21, 19, 21, 23, 12, 12, 12, 12, |
|||
30, 26, 23, 12, 12, 12, 12, 12, |
|||
35, 23, 12, 12, 12, 12, 12, 12, |
|||
34, 12, 12, 12, 12, 12, 12, 12, |
|||
17, 12, 12, 12, 12, 12, 12, 12], |
|||
[20, 19, 22, 27, 20, 20, 17, 17, |
|||
19, 25, 23, 14, 14, 12, 12, 12, |
|||
22, 23, 14, 14, 12, 12, 12, 12, |
|||
27, 14, 14, 12, 12, 12, 12, 12, |
|||
20, 14, 12, 12, 12, 12, 12, 12, |
|||
20, 12, 12, 12, 12, 12, 12, 12, |
|||
17, 12, 12, 12, 12, 12, 12, 12, |
|||
17, 12, 12, 12, 12, 12, 12, 12] |
|||
]}, |
|||
'medium': {'subsampling': 2, # "4:2:0" |
|||
'quantization': [ |
|||
[12, 8, 8, 12, 17, 21, 24, 17, |
|||
8, 9, 9, 11, 15, 19, 12, 12, |
|||
8, 9, 10, 12, 19, 12, 12, 12, |
|||
12, 11, 12, 21, 12, 12, 12, 12, |
|||
17, 15, 19, 12, 12, 12, 12, 12, |
|||
21, 19, 12, 12, 12, 12, 12, 12, |
|||
24, 12, 12, 12, 12, 12, 12, 12, |
|||
17, 12, 12, 12, 12, 12, 12, 12], |
|||
[13, 11, 13, 16, 20, 20, 17, 17, |
|||
11, 14, 14, 14, 14, 12, 12, 12, |
|||
13, 14, 14, 14, 12, 12, 12, 12, |
|||
16, 14, 14, 12, 12, 12, 12, 12, |
|||
20, 14, 12, 12, 12, 12, 12, 12, |
|||
20, 12, 12, 12, 12, 12, 12, 12, |
|||
17, 12, 12, 12, 12, 12, 12, 12, |
|||
17, 12, 12, 12, 12, 12, 12, 12] |
|||
]}, |
|||
'high': {'subsampling': 0, # "4:4:4" |
|||
'quantization': [ |
|||
[6, 4, 4, 6, 9, 11, 12, 16, |
|||
4, 5, 5, 6, 8, 10, 12, 12, |
|||
4, 5, 5, 6, 10, 12, 12, 12, |
|||
6, 6, 6, 11, 12, 12, 12, 12, |
|||
9, 8, 10, 12, 12, 12, 12, 12, |
|||
11, 10, 12, 12, 12, 12, 12, 12, |
|||
12, 12, 12, 12, 12, 12, 12, 12, |
|||
16, 12, 12, 12, 12, 12, 12, 12], |
|||
[7, 7, 13, 24, 20, 20, 17, 17, |
|||
7, 12, 16, 14, 14, 12, 12, 12, |
|||
13, 16, 14, 14, 12, 12, 12, 12, |
|||
24, 14, 14, 12, 12, 12, 12, 12, |
|||
20, 14, 12, 12, 12, 12, 12, 12, |
|||
20, 12, 12, 12, 12, 12, 12, 12, |
|||
17, 12, 12, 12, 12, 12, 12, 12, |
|||
17, 12, 12, 12, 12, 12, 12, 12] |
|||
]}, |
|||
'maximum': {'subsampling': 0, # "4:4:4" |
|||
'quantization': [ |
|||
[2, 2, 2, 2, 3, 4, 5, 6, |
|||
2, 2, 2, 2, 3, 4, 5, 6, |
|||
2, 2, 2, 2, 4, 5, 7, 9, |
|||
2, 2, 2, 4, 5, 7, 9, 12, |
|||
3, 3, 4, 5, 8, 10, 12, 12, |
|||
4, 4, 5, 7, 10, 12, 12, 12, |
|||
5, 5, 7, 9, 12, 12, 12, 12, |
|||
6, 6, 9, 12, 12, 12, 12, 12], |
|||
[3, 3, 5, 9, 13, 15, 15, 15, |
|||
3, 4, 6, 10, 14, 12, 12, 12, |
|||
5, 6, 9, 14, 12, 12, 12, 12, |
|||
9, 10, 14, 12, 12, 12, 12, 12, |
|||
13, 14, 12, 12, 12, 12, 12, 12, |
|||
15, 12, 12, 12, 12, 12, 12, 12, |
|||
15, 12, 12, 12, 12, 12, 12, 12, |
|||
15, 12, 12, 12, 12, 12, 12, 12] |
|||
]}, |
|||
} |
|||
# fmt: on |
@ -0,0 +1,75 @@ |
|||
# |
|||
# The Python Imaging Library. |
|||
# $Id$ |
|||
# |
|||
# Basic McIdas support for PIL |
|||
# |
|||
# History: |
|||
# 1997-05-05 fl Created (8-bit images only) |
|||
# 2009-03-08 fl Added 16/32-bit support. |
|||
# |
|||
# Thanks to Richard Jones and Craig Swank for specs and samples. |
|||
# |
|||
# Copyright (c) Secret Labs AB 1997. |
|||
# Copyright (c) Fredrik Lundh 1997. |
|||
# |
|||
# See the README file for information on usage and redistribution. |
|||
# |
|||
|
|||
import struct |
|||
|
|||
from . import Image, ImageFile |
|||
|
|||
|
|||
def _accept(s): |
|||
return s[:8] == b"\x00\x00\x00\x00\x00\x00\x00\x04" |
|||
|
|||
|
|||
## |
|||
# Image plugin for McIdas area images. |
|||
|
|||
|
|||
class McIdasImageFile(ImageFile.ImageFile): |
|||
|
|||
format = "MCIDAS" |
|||
format_description = "McIdas area file" |
|||
|
|||
def _open(self): |
|||
|
|||
# parse area file directory |
|||
s = self.fp.read(256) |
|||
if not _accept(s) or len(s) != 256: |
|||
raise SyntaxError("not an McIdas area file") |
|||
|
|||
self.area_descriptor_raw = s |
|||
self.area_descriptor = w = [0] + list(struct.unpack("!64i", s)) |
|||
|
|||
# get mode |
|||
if w[11] == 1: |
|||
mode = rawmode = "L" |
|||
elif w[11] == 2: |
|||
# FIXME: add memory map support |
|||
mode = "I" |
|||
rawmode = "I;16B" |
|||
elif w[11] == 4: |
|||
# FIXME: add memory map support |
|||
mode = "I" |
|||
rawmode = "I;32B" |
|||
else: |
|||
raise SyntaxError("unsupported McIdas format") |
|||
|
|||
self.mode = mode |
|||
self._size = w[10], w[9] |
|||
|
|||
offset = w[34] + w[15] |
|||
stride = w[15] + w[10] * w[11] * w[14] |
|||
|
|||
self.tile = [("raw", (0, 0) + self.size, offset, (rawmode, stride, 1))] |
|||
|
|||
|
|||
# -------------------------------------------------------------------- |
|||
# registry |
|||
|
|||
Image.register_open(McIdasImageFile.format, McIdasImageFile, _accept) |
|||
|
|||
# no default extension |
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Reference in new issue