first go commit

exp/README.md

@@ -5,3 +5,11 @@
 ## `ls.go`
 
 Lists files in [`files`](./files/). Run with `go run ls.go`.
+
+## `gimmetxt.go`
+
+WIP of gosseract pdf OCR. its far from perfect.
+* gosseract doesn't OCR pdfs only imagees
+* tried using gographics imagick.v2 with imagemagick6
+* this only does one page of the PDF, its very slow and it doesn't even do the OCR yet.
+* imagemagick6 has a security policy when it comes to pdf. it's not install and go.

exp/gimmetxt/gimmetxt.go

@@ -0,0 +1,64 @@
+package main
+
+import (
+	"log"
+
+	"gopkg.in/gographics/imagick.v2/imagick"
+)
+
+func main() {
+
+	if err := ConvertPdfToJpg("../files/vanwiehuurik.pdf", "out.jpeg"); err != nil {
+		log.Fatal(err)
+	}
+
+	//client := gosseract.NewClient()
+	//defer client.Close()
+
+	//client.SetImage(file.Name())
+	//text, _ := client.Text()
+	//fmt.Println(text)
+}
+
+func ConvertPdfToJpg(pdfName string, imageName string) error {
+
+	// Setup
+	imagick.Initialize()
+	defer imagick.Terminate()
+
+	mw := imagick.NewMagickWand()
+	defer mw.Destroy()
+
+	// Must be *before* ReadImageFile
+	// Make sure our image is high quality
+	if err := mw.SetResolution(300, 300); err != nil {
+		return err
+	}
+
+	// Load the image file into imagick
+	if err := mw.ReadImage(pdfName); err != nil {
+		return err
+	}
+
+	// Must be *after* ReadImageFile
+	// Flatten image and remove alpha channel, to prevent alpha turning black in jpg
+	if err := mw.SetImageAlphaChannel(imagick.ALPHA_CHANNEL_FLATTEN); err != nil {
+		return err
+	}
+
+	// Set any compression (100 = max quality)
+	if err := mw.SetCompressionQuality(95); err != nil {
+		return err
+	}
+
+	// Select only first page of pdf
+	mw.SetIteratorIndex(0)
+
+	// Convert into JPG
+	if err := mw.SetFormat("jpg"); err != nil {
+		return err
+	}
+
+	// Save File
+	return mw.WriteImage(imageName)
+}

go.mod

@@ -1,3 +1,8 @@
 module varia.zone/go-sh-manymanuals
 
 go 1.18
+
+require (
+	github.com/otiai10/gosseract/v2 v2.3.1 // indirect
+	gopkg.in/gographics/imagick.v2 v2.6.0 // indirect
+)

go.sum

@@ -0,0 +1,11 @@
+github.com/otiai10/curr v0.0.0-20150429015615-9b4961190c95/go.mod h1:9qAhocn7zKJG+0mI8eUu6xqkFDYS2kb2saOteoSB3cE=
+github.com/otiai10/curr v1.0.0/go.mod h1:LskTG5wDwr8Rs+nNQ+1LlxRjAtTZZjtJW4rMXl6j4vs=
+github.com/otiai10/gosseract/v2 v2.3.1 h1:BFy9Rru7dzqEYX7/tJuEvjVPkkJck0f+b5fYzzr6/RM=
+github.com/otiai10/gosseract/v2 v2.3.1/go.mod h1:2ZOGgdTIXQzCS5f+N1HkcXRgDX6K3ZoYe3Yvo++cpp4=
+github.com/otiai10/mint v1.3.0/go.mod h1:F5AjcsTsWUqX+Na9fpHb52P8pcRX2CI6A3ctIT91xUo=
+github.com/otiai10/mint v1.3.2 h1:VYWnrP5fXmz1MXvjuUvcBrXSjGE6xjON+axB/UrpO3E=
+github.com/otiai10/mint v1.3.2/go.mod h1:/yxELlJQ0ufhjUwhshSj+wFjZ78CnZ48/1wtmBH1OTc=
+gopkg.in/gographics/imagick.v2 v2.6.0 h1:ewRsUQk3QkjGumERlndbFn/kTYRjyMaPY5gxwpuAhik=
+gopkg.in/gographics/imagick.v2 v2.6.0/go.mod h1:/QVPLV/iKdNttRKthmDkeeGg+vdHurVEPc8zkU0XgBk=
+gopkg.in/gographics/imagick.v3 v3.4.0 h1:kSnbsXOWofo81VJEn/Hw8w3qqoOrfTyWwjAQzSdtPlg=
+gopkg.in/gographics/imagick.v3 v3.4.0/go.mod h1:+Q9nyA2xRZXrDyTtJ/eko+8V/5E7bWYs08ndkZp8UmA=