How to do lstm training using box/tiff files?

[易鑫]

Hello,everyone:

    I used tesseract 3.05 engine before, I have lots of tiff and box file, now I want to use tesseract 4.0.0 engine for lstm training.

I want to know how to train use the tiff/box files in the new engine?

Thanks in advance.

[Kristóf Horváth]

I feel you. Im currently trying to understand lstm training but wiki is weak as hell so im doing try and errorr blindly. So far I managed to setup tesseract training on cygwin so i have access to tesstrain and lstmtraining command. Achiving this should be your first step then i suggest to try sample codes from wiki. In this section the first code sample is what i ran but gave me error: 

 

kh@DSAD-6 /usr/share/tessdata/training

$ tesstrain.sh --fonts_dir /usr/share/fonts --lang eng --linedata_only --noextract_font_properties --langdata_dir ~/langdata --tessdata_dir ../tessdata --output_dir ~/tesstutorial/engtrain

=== Starting training for language 'eng'

/usr/bin/language-specific.sh: line 1175: FONTS: unbound variable

In case you get any further pls make sure you share your results.

[易鑫]

Thanks for your reply. I have already tried to do lstm trianing on ubuntu successfully, but the result is not so good as I expected and I do not use my tiff/box file,so I want to add more sample,that's why I ask how to do lstm training using box/tiff file.

as your mentioned:

"

 tesstrain.sh --fonts_dir /usr/share/fonts --lang eng --linedata_only --noextract_font_properties --langdata_dir ~/langdata --tessdata_dir ../tessdata --output_dir ~/tesstutorial/engtrain

=== Starting training for language 'eng'

/usr/bin/language-specific.sh: line 1175: FONTS: unbound variable

"

I met this error before,you can use the master branch,latest code.

 

Kristóf Horváth <vazzz...@gmail.com> 于2019年1月31日周四 下午5:00写道：

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[Kristóf Horváth]

EDIT: 

Environment

• Tesseract Version: 4.0.0
• Platform: Win10 64 (cygwin)

Current Behavior: Confusing af (pls fix wiki, as soon as i can make my demo work i will have to document it so im gonna send it so you guys will be able to have a wiki)

Expected Behavior: run as intended copied from wiki

[Kristóf Horváth]

Oh i see, but i dont know what you mean by this: you can use the master branch,latest code. I compiled the latest version on my cygwin setup so i dont know what you are refering to

[Shree Devi Kumar]

lstm training using box/tiff files is NOT supported.

Use tesstrain.sh with a UTF8 training_text and fonts.

To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/69a28d93-a740-41c8-8755-5b7a0af61dba%40googlegroups.com.

For more options, visit https://groups.google.com/d/optout.

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[易鑫]

@Kristóf Horváth 

Oh i see, but i dont know what you mean by this: you can use the master branch,latest code. I compiled the latest version on my cygwin setup so i dont know what you are refering to  

Sorry, I don't not say clearly.It means use master branch. I have successfully trained lstm model in ubuntu according to wiki。

Kristóf Horváth <vazzz...@gmail.com> 于2019年1月31日周四 下午5:34写道：

To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/69a28d93-a740-41c8-8755-5b7a0af61dba%40googlegroups.com.

[易鑫]

@Shree Devi Kumar:

   Thanks for your reply.

lstm training using box/tiff files is NOT supported. 

Use tesstrain.sh with a UTF8 training_text and fonts.

Maybe you are right.But I think using training_text will also generate tiff/box files in /tmp folder,so I think using box/tiff files and training_text do not have too much difference.

To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/CAG2NduWF4X6nq30K2gOzzFywBMDWxhZaSLiJOe0bNRb%2BdUutSQ%40mail.gmail.com.

[Kristóf Horváth]

Well you just repeated yourself and did not provide any new information. Like i said im using latest so what am i doing wrong? Also im not working in ubuntu but cygwin (not the same).