Dňa 06.04.2012 17:35, Rufus wrote / napísal(a): > Thanks for the reply. > > I've tried another image(bad2.tiff), which is still a bit different from > good.tiff, and is of the same order regarding the compression ratio. > However, tesseract still doesn't output anything for bad2.tiff. > I then tried to feed tesseract with only the first character, and there is > works for bad_char.tiff (from bad.tiff) but it doesn't work for > bad2_char.tiff (from bad2.tiff). > > Commands: > tesseract bad_char.tiff bad_char -l eng -psm 10 nobatch digits > tesseract bad2_char.tiff bad2_char -l eng -psm 10 nobatch digits > > > All the images attached are actually thresholded. I guess there is not much > room for improvement there. I've also tried by training tesseract with a > new language consisting only of digits with a particular font (font: Impact > .... looks like the font in the images). Do you also experience these > problems when using tesseract? > I think problem is with size of text, resolution and missing border. I tried this: convert -border 500 -resample 300 -density 300 -resize 50 bad2.tiff bad2.png and tesseract bad2.png bad2 produced results.
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