Hello Zdenko, Thank you for the advice. I ended up being able to tweak the tesseract parameters and was able to improve performance so that it was good enough without having to train.
And I do appreciate the hard work and cleverness that has gone into creating and improving tesseract. It's a beautiful piece of work. Regards, ...John [image: width=] <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free.www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Wed, Aug 31, 2022 at 10:04 AM Zdenko Podobny <[email protected]> wrote: > Trained data from tesseract 5 are compatible with 4, so definitely I would > suggest using the latest tesseract version for training - there was a lot > of bug fixing and speed improvements. > > IMO tesseract training has never been easy. I always suggest focusing on > image preprocessing rather than training. > Following an easy looking training tutorial could also mean you are on the > wrong path (=> you waste your time and it increases your frustration). For > example:Tesseract 4 has 2 engines LSTM and legacy engine. In this > particular video, for which engine is that training? For hints see[1]. Did > you plan to train that engine or other one? > > [1] > https://tesseract-ocr.github.io/tessdoc/tess5/TrainingTesseract-5.html#overview-of-training-process > > Zdenko > > > st 31. 8. 2022 o 15:40 John Alway <[email protected]> napísal(a): > >> "First of all: if you follow any tutorial on internet - report the >> problem to the author of the tutorial." >> Next: use official documentation for training. I see there are a bunch of >> folks just "generating content" - to gain an audience. Without insight and >> therefore also without support, using old/outdated information..." >> >> People are trying to find a nice, easy tutorial to help them get >> through the forest. I think that's the bottom line. Thanks for the link. >> >> 'Tesseract 4 was released 29 Oct 2018. Almost 4 year ago! The recent >> tesseract version is 5.2 and training process was also improved: >> https://github.com/tesseract-ocr/tesstrain"; >> >> I understand this, but I'm using C# .Net, and I don't think version 5 >> is available in C#. Unless I'm mistaken? There are costly packages, such >> as IronOcr which uses tesseract 5, but there is no way I can take that >> route. >> >> Regards, >> ...John >> >> >> >> [image: width=] >> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> >> Virus-free.www.avg.com >> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> >> <#m_-846021221202202543_m_6502694561301915279_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> >> >> On Wed, Aug 31, 2022 at 3:27 AM Zdenko Podobny <[email protected]> wrote: >> >>> First of all: if you follow any tutorial on internet - report the >>> problem to the author of the tutorial. >>> Next: use official documentation for training. I see there are a bunch >>> of folks just "generating content" - to gain an audience. Without insight >>> and therefore also without support, using old/outdated information... >>> Tesseract 4 was released 29 Oct 2018. Almost 4 year ago! The recent >>> tesseract version is 5.2 and training process was also improved: >>> https://github.com/tesseract-ocr/tesstrain >>> >>> Zdenko >>> >>> >>> st 31. 8. 2022 o 0:18 John Alway <[email protected]> napísal(a): >>> >>>> Hello, >>>> >>>> I've been following a tutorial on youtube titled "Tesseract OCR - >>>> Lesson 2: Training Tesseract for new font" here: >>>> https://www.youtube.com/watch?v=1v8BPw0Dn0I&ab_channel=TheCode >>>> >>>> I'm using tesseract 4.0 on Window 10. >>>> >>>> I went through the steps he used, and everything seems to go smoothly >>>> until I get to the actual training. When I run "mftraining" the program >>>> hangs. It seems to get stuck and doesn't indicate why are what it's doing. >>>> >>>> I'm using a set of fonts in an image. I have the full alphabet upper >>>> and lower case and the numbers 0 to 9 on the png image. I've attached the >>>> image. Unlike him, I'm using the English. I don't know the font, so I'm >>>> just calling it tiktok to give it a name. My training file is called >>>> *eng.tiktok.exp0.tr >>>> <http://eng.tiktok.exp0.tr> * >>>> >>>> I used* jTessBoxEditor* to correct mistakes and set the box sizes and >>>> positions precisely. >>>> >>>> >>>> When I run this command: >>>> *mftraining -F font_properties -U unicharset -O eng.unicharset >>>> eng.tiktok.exp0.tr <http://eng.tiktok.exp0.tr>* >>>> >>>> The program just hangs. I've waited over twenty minutes. >>>> >>>> Should I wait longer? What could cause it to hang? >>>> >>>> >>>> >>>> Thanks! >>>> ...John >>>> >>>> -- >>>> 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 view this discussion on the web visit >>>> https://groups.google.com/d/msgid/tesseract-ocr/534c3f74-420b-4c96-83dd-609bcb002f81n%40googlegroups.com >>>> <https://groups.google.com/d/msgid/tesseract-ocr/534c3f74-420b-4c96-83dd-609bcb002f81n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> -- >>> 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 view this discussion on the web visit >>> https://groups.google.com/d/msgid/tesseract-ocr/CAJbzG8w5MX1XchQp6jfu2Vz06zWp82HxbDHrgp7%2BQ_Neh%2BDeug%40mail.gmail.com >>> <https://groups.google.com/d/msgid/tesseract-ocr/CAJbzG8w5MX1XchQp6jfu2Vz06zWp82HxbDHrgp7%2BQ_Neh%2BDeug%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- >> 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 view this discussion on the web visit >> https://groups.google.com/d/msgid/tesseract-ocr/CAN7TTkEYLexQwmN9y3qO6cwqGoW72HoaEj8XksAgTwb3qVSNPA%40mail.gmail.com >> <https://groups.google.com/d/msgid/tesseract-ocr/CAN7TTkEYLexQwmN9y3qO6cwqGoW72HoaEj8XksAgTwb3qVSNPA%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- > You received this message because you are subscribed to a topic in the > Google Groups "tesseract-ocr" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/tesseract-ocr/GkntrKGFqu0/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/tesseract-ocr/CAJbzG8wt1fjKy66uZ9-sEAqUkEwagLAZhFxcDV_8QLuPgk%3DnvQ%40mail.gmail.com > <https://groups.google.com/d/msgid/tesseract-ocr/CAJbzG8wt1fjKy66uZ9-sEAqUkEwagLAZhFxcDV_8QLuPgk%3DnvQ%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/CAN7TTkG7-foR9g7YkBT8f%2BwU3P9Qf4s00V%3DMEazgkBboztzYsg%40mail.gmail.com.
