I would go by what is suggested by the training wiki<https://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract3> :
*Don't make the mistake of grouping all the non-letters together. Make the text more realistic.* I think you can improve the result a little bit by merging your images into a multi-page TIFF and concatenating your box files (make sure the page numbers are correct). However, that still does not meet the suggestion stated above. On Friday, February 28, 2014 10:20:11 PM UTC-6, Frederico Ferro Schuh wrote: > > Do you think training one character per file is affecting my results? > > I was doing it because I have thousands of samples, and makebox always > makes too many wrong guesses. If I have all the digits on the same image, > fixing the resulting 10k chars box file manually would take forever. On the > other hand, fixing a single digit box file only takes a simple regexp > replace operation on the resulting box file (one replace for digit 1, > another replace for digit 2, and so on). > > Also, the goal of my application is for online OCR, to recognize single > lines of handwritten digits as the user draws them. Would this affect the > format of my sample image(s) as well? > > Thanks, > Fred > > > On Friday, February 28, 2014 10:58:05 PM UTC+8, Quan Nguyen wrote: >> >> I'm not sure having only samples of one character in a file is a good >> idea. I normally train with all the characters in the same image(s). >> >> Check >> http://code.google.com/p/tesseract-ocr/downloads/detail?name=boxtiff-2.01.eng.tar.gzfor >> an example. >> >> On Tuesday, February 25, 2014 10:51:39 AM UTC-6, Frederico Ferro Schuh >> wrote: >>> >>> Hello all, >>> >>> I'm training Tesseract to recognize handwritten digits, and I have >>> provided it about 6000 samples of each digit, in 10 different box files, >>> one for each digit. Each box file is a 2152x2152 TIF file. However, the >>> resulting traineddata file I get after completing the training procedure is >>> only 137 kb. >>> I went through the process again, providing smaller sample files (1000 >>> samples of each digit), and ended up with the same traineddata size of 137 >>> kb. >>> Is this size reasonable or am I doing something wrong? >>> I assume something is wrong because my results are pretty bad so far. >>> >>> I've attached the sample image I am using for the digit 0. >>> >>> Thanks in advance, >>> Fred >>> >> -- -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" 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/tesseract-ocr?hl=en --- 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]. For more options, visit https://groups.google.com/groups/opt_out.
