Thank you Des for your help in this community. It is greatly appreciated! As one who is struggling, may I make a suggestion. I have started a google doc here <https://docs.google.com/document/d/1Vz6y4LcqczAAE2yKc_xYecy1eChjHZbsxb13_7ntUh0/edit?usp=sharing> with a suggested format for a tutorial which would be very helpful to me and I think to others. It is editable by anyone with the link. I'm glad to put in any work myself, but my guess is that there are things in the doc that could be filled without much effort by you or others. If this is true, once the doc is filled out, the contents of the google doc could be submitted as a PR to the tesstrain repo. Again, just a suggestion that I hope would be helpful to all.
Thanks, Keith On Sat, Oct 21, 2023 at 8:28 AM Des Bw <[email protected]> wrote: > There is no exhaustive user manual for training tesseract. We all start in > the darkness; and accumulate bits of information in different places to > learn the ins and outs of tesseract. > > It would be great if we can collectively write a better manual. Up until > then, we can drop /collect our observations, best practices, hacks and > lessons we accumulated in our adventure with tesseract. > > I will start with some of my observations. I collect them by reading in > between the lines: from my own failed experiments: > 1. Training from scratch is very difficult because tesseract requires > extensive data set. It looks like it requires over 300,000 test lines > (around 26mb text file). > https://github.com/tesseract-ocr/tesseract/issues/3909 > > Multiple that with the fonts you want to train, the data grows > exponentially. That requires very powerful computers running for weeks and > months. > So, for the regular users, training from a network layer, or fine tuning > are the most plausible options. > > 2. Best practice: make your text lines not too long. The recommended > number of works in a line is 10-12. Again from the above link. > > ( ...to be continued) > > -- > 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/bf0cd568-9b5b-4e42-be6e-6225ed6a3892n%40googlegroups.com > <https://groups.google.com/d/msgid/tesseract-ocr/bf0cd568-9b5b-4e42-be6e-6225ed6a3892n%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/CAL1pF5ZHL-_9shmwX%3DAUrnDWHJZBWiZutT9zc-j8Oxih8c6D2A%40mail.gmail.com.
