Thanks for your response, Since these are handwritten digits I don't have font data and what I'm having is cropped image blocks and I prepared some .gt.txt files. Is it possible to do lstm training without font data?
On Tuesday, February 5, 2019 at 1:17:27 AM UTC+5:30, Lorenzo Blz wrote: > > > To use ocrd you need to prepare image files and txt files with the same > name but different extension. > For example: > > sample1.png > sample1.gt.txt > > The gt.txt is a simple text file containing the correct text, 145, for > example. > > The images must be cropped with no border or just a couple of pixels. Text > height should be about 30/40px. Try different options to see what works > best. > > To recognize numbers ONLY you also need to replaced the line: > > merge_unicharsets $(TESSDATA)/$(CONTINUE_FROM).lstm-unicharset > $(TRAIN)/my.unicharset "$@" > > with: > > cp "$(TRAIN)/my.unicharset" "data/unicharset" > > in the makefile (see > https://groups.google.com/forum/#!searchin/tesseract-ocr/l.bolzani%7Csort:date/tesseract-ocr/be4-rjvY2tQ/32evtMHlAQAJ > > ) > > Then follow the instructions on the ocrd site. > > You can try 100, 250, 500, 1000 and 2000 iterations and see what works > best (it depends on how much data you have). > > > If you need to recognize nothing but handwritten numbers, you can also > look for github projects (not related to tesseract) about "MNIST" > handwritten numbers recognition with pre-trained models. > > > Bye > > Lorenzo > > > Il giorno lun 4 feb 2019 alle ore 08:34 <[email protected] <javascript:>> > ha scritto: > >> I am a beginner for OCR training. Can anyone explain how to use Ocr-d >> train briefly? >> >> I have Tesseract and Leptonica library installed in Cygwin >> >> tesseract 4.0.0 >> leptonica-1.77.0 >> libgif 5.1.4 : libjpeg 8d (libjpeg-turbo 1.5.3) : libpng 1.6.34 : >> libtiff 4.0.9 : zlib 1.2.11 : libwebp 0.6.1 : libopenjp2 2.3.0 >> Found AVX2 >> Found AVX >> Found SSE >> >> I want to train handwritten digits, because it is not detecting correctly >> by default traineddata. I have searched group and found no detailed >> instructions. I used Opencv and python tesseract combination to achieve >> OCR of printed text and came to linux for handwritten digits training >> purpose. Kindly provide step by step instructions, it may help others also. >> I have attached the sample images which requires training. 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] <javascript:>. >> To post to this group, send email to [email protected] >> <javascript:>. >> 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/48ce49cc-6ade-4ebd-a1a6-5e382b033a95%40googlegroups.com >> >> <https://groups.google.com/d/msgid/tesseract-ocr/48ce49cc-6ade-4ebd-a1a6-5e382b033a95%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/4b4745ff-7bba-4982-8ced-6df1d03a4590%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
