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nbg15

tesseract doesnt detect the easiest image *image to text*

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nbg15

Hello everybody..

 

i have this picture here *attached* and this script here: GDIPlus_Image2.jpg

 

$ImageToReadPath = @MyDocumentsDir & "\GDIPlus_Image2.jpg"
$ResultTextPath = @MyDocumentsDir & "\Result"
$OutPutPath = $ResultTextPath & ".txt"
$TesseractExePath = @MyDocumentsDir & "\Tesseract.exe"

ShellExecuteWait($TesseractExePath, '"' & $ImageToReadPath & '" "' & $ResultTextPath & '"', "", "", @SW_HIDE)


If @error Then
    Exit MsgBox(0, "Error", @error)
EndIf

MsgBox(0, "Result", FileRead($OutPutPath))

FileDelete($OutPutPath)

 

but tesseract doesnt recognized the correct word... and gives me trash back...

this is the image >> GDIPlus_Image2.jpg

and the result was >> "samm:lmao:

the image was an normal jpg and generated with this code here:
 

_ScreenCapture_Capture(@MyDocumentsDir & "\GDIPlus_Image2.jpg", 712,268,853,284)


Could anybody give me a hint what i can do better to get this easy image to text?

 

thank u very much!!!

 

 

Edit: i also tried to capture the screen as bmp with a higher resolution... nothing changed... 

 

 

_ScreenCapture_SetBMPFormat(4)
    _ScreenCapture_Capture(@MyDocumentsDir & "\GDIPlus_Image.bmp", 712,279,853,295)

 

Edited by nbg15

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LarsJ

You can open the image in Paint, double the width and height, save the image and try again.

It's a small image, and there is a risk that there simply are too few pixels to recognize the characters. It usually helps to make the image larger.

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Pain

Hi nbg15,

You should be able to resize your image with this script:

#include <GDIPlus.au3>

; init
_GDIPlus_Startup()

; get file
$sFile = FileOpenDialog("Select an image (non JPG)", "", "Images (*.bmp;*.png;*.gif;*.tif)")
$hImage = _GDIPlus_ImageLoadFromFile($sFile)

; size
$width = _GDIPlus_ImageGetWidth($hImage)
$height = _GDIPlus_ImageGetHeight($hImage)

; resize image 200%
$hBitmap_Scaled = _GDIPlus_ImageResize($hImage, $width * 2, $height * 2)
; save file
_GDIPlus_ImageSaveToFile($hBitmap_Scaled, @ScriptDir & "\resized.png")

; clean up
_GDIPlus_ImageDispose($hImage)
_GDIPlus_BitmapDispose($hBitmap_Scaled)

; done
_GDIPlus_Shutdown()

 

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