I do not have a technical reason for you but I confirm that Tesseract is sensitive to padding around words you are trying to detect (perhaps something about its page segmentation). Best to make sure text has enough white space around it in my experience.
On 6 June 2016 at 18:23, 'Carlo' via tesseract-ocr < tesseract-ocr@googlegroups.com> wrote: > Hi All, > > I am trying to perform an OCR recognition and I am noticing a strange > behaviour: with image "test1.bmp" (in attach) the engine returns: > > DOP Z IT001E34343434 (with a "Z" instead of ":") > > With image "test2.bmp" (in attach), that is a portion wider then > test1.bmp, the engine returns: > > maggiore > DOP : IT001E34343434 (correct!) > > Why, with the first image, the engine detects a "Z" instead of ":" and in > the other case the engine detects correctly a ":"? > > Many thanks. > Best Regards. > > Carlo > > -- > 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 tesseract-ocr+unsubscr...@googlegroups.com. > To post to this group, send email to tesseract-ocr@googlegroups.com. > Visit this group at https://groups.google.com/group/tesseract-ocr. > To view this discussion on the web visit > https://groups.google.com/d/msgid/tesseract-ocr/acc8d2fe-c2f9-469c-bbf7-bd8bd02f4dc9%40googlegroups.com > <https://groups.google.com/d/msgid/tesseract-ocr/acc8d2fe-c2f9-469c-bbf7-bd8bd02f4dc9%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- 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 tesseract-ocr+unsubscr...@googlegroups.com. To post to this group, send email to tesseract-ocr@googlegroups.com. Visit this group at https://groups.google.com/group/tesseract-ocr. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/CAORW5vgd%2BcKqXiit9Q-hNzwaXbCAewVQqT8qt7s4FfnjFQXSXA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
