Tesseract failed to read .lstm file and checkpoint file

[Foong Gah Seng]

OS: Windows

$ make training TESSDATA=/c/Users/gahse/Desktop/Projects/lib/dup/tesstrain/data/tessdata MODEL_NAME=jpn_font START_MODEL=jpn
You are using make version: 4.4.1
tesseract "data/jpn_font-ground-truth/001pg1_1.tif" data/jpn_font-ground-truth/001pg1_1 --psm 13 lstm.train
read_params_file: Can't open lstm.train
tesseract "data/jpn_font-ground-truth/001pg1_2.tif" data/jpn_font-ground-truth/001pg1_2 --psm 13 lstm.train
read_params_file: Can't open lstm.train
tesseract "data/jpn_font-ground-truth/001pg1_3.tif" data/jpn_font-ground-truth/001pg1_3 --psm 13 lstm.train
read_params_file: Can't open lstm.train
python shuffle.py 0 "data/jpn_font/all-lstmf"
python generate_eval_train.py data/jpn_font/all-lstmf 0.90

lstmtraining \
  --debug_interval 0 \
  --traineddata data/jpn_font/jpn_font.traineddata \
  --old_traineddata C:/Users/gahse/Desktop/Projects/lib/dup/tesstrain/data/tessdata/jpn.traineddata \
  --continue_from data/jpn/jpn_font.lstm \
  --learning_rate 0.0001 \
  --model_output data/jpn_font/checkpoints/jpn_font \
  --train_listfile data/jpn_font/list.train \
  --eval_listfile data/jpn_font/list.eval \
  --max_iterations 10000 \
  --target_error_rate 0.01 \
2>&1 | tee -a data/jpn_font/training.log
Loaded file data/jpn/jpn_font.lstm, unpacking...
Failed to continue from: data/jpn/jpn_font.lstm

lstmtraining \
--stop_training \
--continue_from data/jpn_font/checkpoints/jpn_font_checkpoint \
--traineddata data/jpn_font/jpn_font.traineddata \
--model_output data/jpn_font.traineddata
Failed to read continue from: data/jpn_font/checkpoints/jpn_font_checkpoint
make: *** [Makefile:325: data/jpn_font.traineddata] Error 1

Hi im having issue
1. What is the cause that failed from .lstm?
2. The checkpoint file will auto generated or need to create manually? What is the format? 

[Zdenko Podobny]

Dear friends,

do not try to train tesseract if you have a clue how tesseract works. You will fail, waste your time and resources.

If you are not able to solve the issue `read_params_file: Can't open...` by yourself (e.g. you did not even try to search on the internet for a solution) then tesseract is not the right tool for you. Go and use some paid solution.. 

Zdenko

po 21. 4. 2025 o 6:45 Foong Gah Seng <gahs...@gmail.com> napísal(a):

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