Need help in training Tesseract with application images

[preeti padalia]

Hi,

We are using tesseract to perform actions and verifications for our application. But we are facing issues for some of the characters. As i have never tried training if any one can help with this.

Any link for how to train with application image.
how to prepare training data.
How to do the training in windows if possible.
Thanks in advance.

[Shree Devi Kumar]

Please use https://github.com/tesseract-ocr/tesstrain

This works on line images and their ground-truth transcription.

On Windows, you could install WSL for running the *NIX scripts.

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[preeti padalia]

Hi shree, 

Because of some other priorities i could not check this. I tried your suggestion and based on document for tesstrain u tried to make training of sample test set in tesstrain.

I am trying to do the setup in windows usi g cygwin.

But getting following error

make training

tesseract data/foo-ground-truth/alexis_ruhe01_1852_0018_022.tif data/foo-ground-truth/alexis_ruhe01_1852_0018_022 --psm 6 lstm.train

Tesseract Open Source OCR Engine v5.0.0-alpha with Leptonica

Page 1

Warning: Invalid resolution 0 dpi. Using 70 instead.

Failed to read boxes from data/foo-ground-truth/alexis_ruhe01_1852_0018_022.tif

Error during processing.

make: *** [Makefile:187: data/foo-ground-truth/alexis_ruhe01_1852_0018_022.lstmf] Error 1

 Please help .

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