mgr_.Init(traineddata_path.c_str()):Error:Assert failed:in file ../../src/lstm/lstmtrainer.h, line 110

[fady taher]

Am trying to fine tune tesseract

but I keep getting the error mgr_.Init(traineddata_path.c_str()):Error:Assert failed:in file ../../src/lstm/lstmtrainer.h, line 110  on the training statement.

My script looks as follows

cd /home/sw/repo/tesseract-ocr

  

mkdir -p ~/tesstutorial/

mkdir -p ~/tesstutorial/trainplusminus

mkdir -p ~/tesstutorial/evalplusminus

src/training/tesstrain.sh  --fontlist "Times New Roman" --lang eng --linedata_only   --noextract_font_properties --langdata_dir /home/sw/repo/langdata   --tessdata_dir /home/sw/repo/tessdata --output_dir ~/tesstutorial/trainplusminus

src/training/tesstrain.sh  --fontlist "Times New Roman" --lang eng --linedata_only   --noextract_font_properties --langdata_dir /home/sw/repo/langdata/eng   --tessdata_dir /home/sw/repo/tessdata   --output_dir ~/tesstutorial/evalplusminus

#eng.lstm file gets extracted correctly

src/training/combine_tessdata -e /home/sw/repo/tessdata/eng.traineddata   ~/tesstutorial/trainplusminus/eng.lstm

#this command fails and throws the error

src/training/lstmtraining --model_output ~/tesstutorial/trainplusminus/plusminus \

   --continue_from ~/tesstutorial/trainplusminus/eng.lstm  \

   --traineddata ~/tesstutorial/trainplusminus/eng/eng.traineddata   \

   --old_traineddata /home/sw/repo/tessdata/eng.traineddata   \

   --train_listfile ~/tesstutorial/trainplusminus/eng.training_files.txt   \

   --max_iterations 400

   

src/training/lstmtraining --stop_training \

  --continue_from ~/tesstutorial/trainplusminus/plusminus_checkpoint \

  --traineddata ~/tesstutorial/trainplusminus/eng/eng.traineddata \

  --model_output ~/tesstutorial/eng_final.traineddata

  

cp ~/tesstutorial/eng_final.traineddata /usr/share/tesseract/4/tessdata/eng.traineddata

I have download the eng.traineddata from "Best" repo though, anyone can help ?

[Shree Devi Kumar]

Check ~/tesstutorial/trainplusminus

Did your earlier training complete correctly? Does ~/tesstutorial/trainplusminus/eng/eng.traineddata exist?

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[fady taher]

Nop, this file doesn't exist yet

only contains 

eng.charset_size=110.txt

eng.unicharset

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[Shree Devi Kumar]

That means 

src/training/tesstrain.sh  --fontlist "Times New Roman" --lang eng --linedata_only   --noextract_font_properties --langdata_dir /home/sw/repo/langdata   --tessdata_dir /home/sw/repo/tessdata --output_dir ~/tesstutorial/trainplusminus 

did not complete correctly. 

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[fady taher]

the output  of

src/training/tesstrain.sh  --fontlist "Times New Roman" --lang eng --linedata_only   --noextract_font_properties --langdata_dir /home/sw/repo/langdata   --tessdata_dir /home/sw/repo/tessdata --output_dir ~/tesstutorial/trainplusminus

is

....

....

[Tue Jun 18 17:19:46 EET 2019] /usr/local/bin/combine_lang_model --input_unicharset /tmp/eng-2019-06-18.baG/eng.unicharset --script_dir /home/sw/repo/langdata --words /home/sw/repo/langdata/eng/eng.wordlist --numbers /home/sw/repo/langdata/eng/eng.numbers --puncs /home/sw/repo/langdata/eng/eng.punc --output_dir /home/sw/tesstutorial/trainplusminus --lang eng
Loaded unicharset of size 111 from file /tmp/eng-2019-06-18.baG/eng.unicharset
Setting unichar properties
Other case É of é is not in unicharset
Setting script properties
Warning: properties incomplete for index 95 = ~
Config file is optional, continuing...
Failed to read data from: /home/sw/repo/langdata/eng/eng.config
Null char=2
Reducing Trie to SquishedDawg
Error during conversion of wordlists to DAWGs!!

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[Shree Devi Kumar]

Have you modified any word lists, training_text etc?

What is your tesseract version?

Which o/s?

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[fady taher]

it seems the problem was copying langdata from windows to linux, I have redownload them on linux and it worked, will retry again

[fady taher]

it seems the problem was copying langdata from windows to linux, I have redownload them on linux and it worked, will retry again.

Thanks alot shree for your support 

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