Attached is a BASH script for Finetune training for 'Impact' (refer to Ray's tutorial in wiki for more details). Use this when you want to finetune a model for a single new font.
You will need to change the paths for directories and filenames based on your system. The script assumes that you have tesseract 4.0.0-beta installed alongwith training tools. Refer to wiki main page for info on how to download latest version of code from PPA etc. Please read through the script first, change as needed, create the required training texts and then run the script. #!/bin/bash ##################################################### # Script to finetune a language traineddata file for one new font # for tesseract4.0.0-beta # Modify directory paths and filenames as required for your setup. ##################################################### # Choose which parts of script are to be run? MakeData=yes RunTraining=yes RunEval=yes ##################################################### # Language Lang=eng # downloaded directory with language data langdata_dir=~/langdata # Make about 150 lines of representative training text for finetuning finetune_training_text=$langdata_dir/$Lang/$Lang.finetune.training_text # Make about 150 lines of representative training text for evaluation eval_training_text=$langdata_dir/$Lang/$Lang.eval.training_text # fonts directory for this system fonts_dir=~/.fonts # Finetune training for IMPACT - ONE font ONLY fonts_for_training=" \ 'Alanis Hand' \ " # directory with the old 'best' language training set to continue from eg. ara, eng, san bestdata_dir=~/tessdata_best # tessdata-dir which has osd.trainddata, eng.traineddata, config and tessconfigs folder and pdf.ttf tessdata_dir=~/tessdata # directory with training scripts - tesstrain.sh etc. tesstrain_dir=~/tesseract/src/training # output directories for this run trained_output_dir=./$Lang-finetune-impact eval_output_dir=./$Lang-finetune-impact-eval if [ $MakeData = "yes" ]; then echo "###### MAKING EVAL DATA ######" rm -rf $eval_output_dir mkdir $trained_output_dir echo "#### running tesstrain.sh for eval text ####" eval bash $tesstrain_dir/tesstrain.sh \ --lang $Lang \ --linedata_only \ --noextract_font_properties \ --exposures "0" \ --fonts_dir $fonts_dir \ --fontlist $fonts_for_training \ --langdata_dir $langdata_dir \ --tessdata_dir $tessdata_dir \ --training_text $eval_training_text \ --output_dir $eval_output_dir echo "###### MAKING TRAINING DATA ######" rm -rf $trained_output_dir mkdir $trained_output_dir echo "#### running tesstrain.sh for training text ####" eval bash $tesstrain_dir/tesstrain.sh \ --lang $Lang \ --linedata_only \ --noextract_font_properties \ --exposures "0" \ --fonts_dir $fonts_dir \ --fontlist $fonts_for_training \ --langdata_dir $langdata_dir \ --tessdata_dir $tessdata_dir \ --training_text $finetune_training_text \ --output_dir $trained_output_dir echo "#### running combine_tessdata to extract lstm model from 'tessdata_best' for $Lang ####" combine_tessdata -e $bestdata_dir/$Lang.traineddata $bestdata_dir/$Lang.lstm fi if [ $RunTraining = "yes" ]; then echo "###### LSTM TRAINING ######" echo "#### running lstmtraining for finetuning from $bestdata_dir/$Lang.traineddata #####" lstmtraining \ --continue_from $bestdata_dir/$Lang.lstm \ --traineddata $bestdata_dir/$Lang.traineddata \ --max_iterations 1000 \ --debug_interval 0 \ --train_listfile $trained_output_dir/$Lang.training_files.txt \ --model_output $trained_output_dir/finetune echo "###### BUILD FINETUNED MODEL ######" echo "#### Building final trained file $Lang-finetune-$Lang.traineddata ####" lstmtraining \ --stop_training \ --continue_from $trained_output_dir/finetune_checkpoint \ --traineddata $bestdata_dir/$Lang.traineddata \ --model_output "$trained_output_dir/$Lang-finetune-$Lang.traineddata" fi if [ $RunEval = "yes" ]; then echo "###### EVAL ORIGINAL MODEL ######" lstmeval \ --model $bestdata_dir/$Lang.traineddata \ --eval_listfile $eval_output_dir/$Lang.training_files.txt \ --verbosity 0 echo "###### EVAL FINETUNED MODEL ######" lstmeval \ --model $trained_output_dir/$Lang-finetune-$Lang.traineddata \ --eval_listfile $eval_output_dir/$Lang.training_files.txt \ --verbosity 0 fi On Wed, Jun 20, 2018 at 9:14 PM Shree Devi Kumar <[email protected]> wrote: > > https://github.com/tesseract-ocr/tesseract/wiki/Training-Tesseract-3.03%E2%80%933.05 > > > https://github.com/tesseract-ocr/tesseract/wiki/Training-Tesseract-%E2%80%93-tesstrain.sh > > I haven't trained with tesseract 3 for a while. I willpost instructions > for tesseract4 later. > > On Wed, Jun 20, 2018 at 9:05 PM Navaneetha Bitla <[email protected]> > wrote: > >> can you help us by saying how to train with tesstrain.sh >> >> It will help all of us, we are thankful to you. >> >> On Wed, Jun 20, 2018 at 8:59 PM, Shree Devi Kumar <[email protected]> >> wrote: >> >>> You will have better control on training if you use tesstrain.sh >>> provided with tesseract. >>> >>> On Wed, Jun 20, 2018 at 8:52 PM Navaneetha Bitla <[email protected]> >>> wrote: >>> >>>> http://www.1001fonts.com/handwritten-fonts.html. >>>> >>>> the above link has 1900+ fonts from that site i have downloaded the ttf >>>> files of fonts and converted to tiff files online. >>>> >>>> then i have trained the tiff files(fonts) using serak trainer. >>>> >>>> >>>> If you got the accuracy just forward the results so everyone can konw >>>> and will follw you. >>>> >>>> Thank you >>>> >>>> On Wed, Jun 20, 2018 at 3:13 PM, James Q <[email protected]> >>>> wrote: >>>> >>>>> I'm going to be using tesseract 4 and using the tesstrain.sh script. >>>>> If I come across things that improve accuracy though I will let you know. >>>>> >>>>> Where did you find 1300 handwriting fonts? >>>>> >>>>> On Tuesday, June 19, 2018 at 5:19:54 PM UTC+1, Navaneetha Bitla wrote: >>>>>> >>>>>> serak trainer using training tesseract 3.5. >>>>>> >>>>>> >>>>>> >>>>>> On Tue, Jun 19, 2018 at 9:29 PM, James Q <[email protected]> >>>>>> wrote: >>>>>> >>>>>>> Hi Navaneetha >>>>>>> I am also looking to start training tesseract using handwritten >>>>>>> fonts and am about to start setting up my training environment. Are you >>>>>>> training tesseract 4 by following the guide at >>>>>>> https://github.com/tesseract-ocr/tesseract/wiki/TrainingTesseract-4.00 >>>>>>> ? >>>>>>> >>>>>>> If so are you fine tuning the existing english model, retraining >>>>>>> just the top layer(s) or training from scratch with your additional >>>>>>> fonts? >>>>>>> >>>>>>> Thanks >>>>>>> Jim >>>>>>> >>>>>>> On Tuesday, June 19, 2018 at 10:30:30 AM UTC+1, Navaneetha Bitla >>>>>>> wrote: >>>>>>>> >>>>>>>> Hi, this is Navaneetha >>>>>>>> >>>>>>>> i'm working in hand written character recognition project. >>>>>>>> >>>>>>>> I have trained 1300 different hand written fonts of english and >>>>>>>> moved the files into tessdata directory. >>>>>>>> >>>>>>>> tested tesseract using the below commands: >>>>>>>> >>>>>>>> $convert -density 300 input.png -depth 8 -strip -background white >>>>>>>> -alpha off out.tiff >>>>>>>> >>>>>>>> $tesseract out.tiff eng >>>>>>>> >>>>>>>> The input.png is of Alanis Handa font and i have trained this font >>>>>>>> but i'm not getting atleast 40% accuracy. >>>>>>>> >>>>>>>> Can someone help me. >>>>>>>> >>>>>>>> >>>>>>>> Thanks in advance. >>>>>>>> >>>>>>> -- >>>>>>> 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/253906ac-fedf-4364-ad70-e745b8786c0d%40googlegroups.com >>>>>>> <https://groups.google.com/d/msgid/tesseract-ocr/253906ac-fedf-4364-ad70-e745b8786c0d%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>> . >>>>>>> >>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>> >>>>>> >>>>>> -- >>>>> 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/29a1bc53-d127-407b-8611-0652821a0707%40googlegroups.com >>>>> <https://groups.google.com/d/msgid/tesseract-ocr/29a1bc53-d127-407b-8611-0652821a0707%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> >>>> -- >>>> 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/CABbi8QfEe2r%2BynHHEGfr8_b-x5KOf2yJ1xr%2Be7e1sDCKxqUFXA%40mail.gmail.com >>>> <https://groups.google.com/d/msgid/tesseract-ocr/CABbi8QfEe2r%2BynHHEGfr8_b-x5KOf2yJ1xr%2Be7e1sDCKxqUFXA%40mail.gmail.com?utm_medium=email&utm_source=footer> >>>> . >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> >>> -- >>> >>> ____________________________________________________________ >>> भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com >>> >>> -- >>> 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/CAG2NduU4w%2BjPakoNOdzq6QyS3nF9rAp9gHSPUkKddioZTXsgyw%40mail.gmail.com >>> <https://groups.google.com/d/msgid/tesseract-ocr/CAG2NduU4w%2BjPakoNOdzq6QyS3nF9rAp9gHSPUkKddioZTXsgyw%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> . >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- >> 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/CABbi8Qdg6FhUbL9ZznVNikY-CS9PcYCoWWeM_7OJNuq7BLMgUA%40mail.gmail.com >> <https://groups.google.com/d/msgid/tesseract-ocr/CABbi8Qdg6FhUbL9ZznVNikY-CS9PcYCoWWeM_7OJNuq7BLMgUA%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > > > -- > > ____________________________________________________________ > भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com > -- ____________________________________________________________ भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com -- 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/CAG2NduU%2B_oqmFsvhNrGeCkTfUNaUK%3D3LsD9RDNzypvhYFEaSGA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
