Hi, sorry, there is no tutorial yet, and there are actually a number of different possibilities.
The following is what works for the development branch if you have text lines and transcriptions and you already have a character recognition model that sort of works but not well. The process then is roughly as follows: - put the text line images into *.png files and the corresponding ground truth into *.gt.txt files - run ocropus-calign -x .gt.txt -m my.cmodel *.png - run ocropus-extract-csegs *.png -o chars.db - optionally, correct the character labels with ocropus-cedit chars.db -t chars - optionally, cluster the character shapes with ocropus-cluster chars.db clusters.db - optionally, correct the cluster labels with ocropus-cedit clusters.db - train a new character recognition model with ocropus-ctrain -b clusters.db new.cmodel You can now recognize with "ocropus-calign -m new.cmodel ..." There are other recipes for completely new scripts (i.e., if you don't already have any model), for new scripts that differ from old scripts by only a few characters, etc. Also, there are two kinds of recognizers, the old C++ recognizer (ocropus-linerec) and the new Python recognizer (ocropus-calign); they work similarly but have some differences. For the official release, we're moving completely to the Python recognizer. Tom On May 9, 10:28 pm, Ted <[email protected]> wrote: > Did you ever get a reply to the documentation question? > I'm a new OCROpus user and have to use gocr. This creates problems > because it needs a lot of corrections. I'd like to know how to use > the trainer. > > I'd even be willing to write an introductory manual. > > On May 5, 5:53 pm, Dennis Rardin <[email protected]> wrote: > > > > > All/Anyone, > > > I have 2 large books broken into pages and then to lines. I'm ready to > > train. For both books, I have text files to compare against the images. > > > How do I train OCROpus by using the text files to correct the results of the > > character recognition? > > > Thank You Very Much, > > Dennis > > > -- > > You received this message because you are subscribed to the Google Groups > > "ocropus" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]. > > For more options, visit this group > > athttp://groups.google.com/group/ocropus?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "ocropus" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group > athttp://groups.google.com/group/ocropus?hl=en. -- You received this message because you are subscribed to the Google Groups "ocropus" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/ocropus?hl=en.
