Hi, I've trained a LSTM model for a custom language from scratch as explained here <https://github.com/tesseract-ocr/tesseract/wiki/TrainingTesseract-4.00>.
The language only has about 100 words and 17 characters, so it's pretty simple. When I run lstmeval on my model, I get a perfect match: [icm@u16-offcao-07] train1$ lstmeval --model /home/icm/share/tessdata/iqi.traineddata --eval_listfile iqitrain2/iqi.training_files.txt --verbosity 2 Loaded 2/2 pages (1-2) of document /home/icm/train1/iqitrain2/iqi.Arial.exp0.lstmf Loaded 2/2 pages (1-2) of document /home/icm/train1/iqitrain2/iqi.Calibri.exp0.lstmf Warning: LSTMTrainer deserialized an LSTMRecognizer! Truth:ASTM 10FEEN 10 FE EN 13CUEN 13 CU EN 02B 11 16 OCR :ASTM 10FEEN 10 FE EN 13CUEN 13 CU EN 02B 11 16 Truth:6CUEN 6 CU EN OCR :6CUEN 6 CU EN Loaded 2/2 pages (1-2) of document /home/icm/train1/iqitrain2/iqi.Lucida_Sans_Typewriter_Semi-Condensed.exp0.lstmf Truth:ASTM 10FEEN 10 FE EN 13CUEN 13 CU EN 02B 11 16 OCR :ASTM 10FEEN 10 FE EN 13CUEN 13 CU EN 02B 11 16 Truth:6CUEN 6 CU EN OCR :6CUEN 6 CU EN Loaded 2/2 pages (1-2) of document /home/icm/train1/iqitrain2/iqi.Verdana.exp0.lstmf Truth:ASTM 10FEEN 10 FE EN 13CUEN 13 CU EN 02B 11 16 OCR :ASTM 10FEEN 10 FE EN 13CUEN 13 CU EN 02B 11 16 Truth:6CUEN 6 CU EN OCR :6CUEN 6 CU EN Truth:6CUEN 6 CU EN OCR :6CUEN 6 CU EN Truth:ASTM 10FEEN 10 FE EN 13CUEN 13 CU EN 02B 11 16 OCR :ASTM 10FEEN 10 FE EN 13CUEN 13 CU EN 02B 11 16 At iteration 0, stage 0, Eval Char error rate=0, Word error rate=0 However, when I put my iqi.traineddata file in my tessdata folder and try to run tesseract on the same tif file, I get errors: [icm@u16-offcao-07] train1$ tesseract iqitrain2/iqi.training_img.txt stdout -l iqi Page 0 : /home/icm/train1/iqitrain2/iqi.Arial.exp0.tif 6CFEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEN 6CUEN 1 CU EN Page 1 : /home/icm/train1/iqitrain2/iqi.Calibri.exp0.tif 6CM 10FEEN 0 6 FEE 13CUEN 11 6 FE EEN 1116 6UEN 16 FE Page 2 : /home/icm/train1/iqitrain2/iqi.Lucida_Sans_Typewriter_Semi-Condensed.exp0.tif 6TM 13CUEN 13 1 EN 11CUE 11 CU EN 12B 11 16 6 6 CU EN Page 3 : /home/icm/train1/iqitrain2/iqi.Verdana.exp0.tif ASTM 103UEEN 13 1CU EN 13CUEN 13 6 FE EEN 11 16 6CUEN 6 CU EN Now the really frustrating part: I have the opposite phenomenon with the "eng" language! (with eng.traineddata taken from tessdata_best) lstmeval gives me a few errors (Eval Char error rate=2.4665552, Word error rate=16.666667) tesseract gives me the right answer! (But the images are generated with tesstrain.sh and very common fonts, it's probably to be expected). Am I doing something wrong? What's going on here? -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tesseract-ocr. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/67286720-c624-4239-a812-3c76d7603cf1%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
