How to enable tessedit_write_images on pytesseract ?

[Mars]

Hello,

I am in the process of figuring out how to make Tesseract more accurate, because I have some issues. In League of Legends' in-game chat the position is fixed, the text color will always be the same, but the background changes a lot.

So I read how to improve quality of the output : https://tesseract-ocr.github.io/tessdoc/ImproveQuality.html#page-segmentation-method

It says to set tessedit_write_images to true so it will generate the image tesseract sees, so we can detect if it pre-processed it properly.

So I tried to enable it : text = pytesseract.image_to_string(image, config='--psm 6 tessedit_write_images=1 ')

But it doesn't do anything, I don't see the file being generated in my folder. I also tried :

text = pytesseract.image_to_string(image, config='--psm 6 tessedit_write_images=true ')

Still nothing, also tried :

text = pytesseract.image_to_string(image, config='--psm 6 --tessedit_write_images=1 ')

Here it outputs an error :  pytesseract.pytesseract.TesseractError: (1, "Error, unknown command line argument '--tessedit_write_images=1'")

I have no idea what I'm doing wrong, if someone can help me.
Thank you

[Zdenko Podobny]

py-tesseract is wrapped of tesseract executable, so I suggest to use dirrecty tesseeract if something goes wrong...

"tesseract --help-extra" is your friend.

tessedit_write_images should be use this way: "-c tessedit_write_images=1"

Zdenko

so 4. 2. 2023 o 9:55 Mars <hdcre...@gmail.com> napísal(a):

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