Hi, try these (in any combination): psm 6 or 7 remove white border (all or most) downscale so that the font is 20/50px tall fine tune a model to recognize only numbers threshold
Otherwise post more details about how you are using tesseract. Bye Lorenzo Il giorno mer 22 mag 2019 alle ore 11:05 Borek Lupoměský < borek.lupome...@gmail.com> ha scritto: > I am OCRing numbers from images. I do all the processing with ImageMagick > to end up with single isolated number (up to three numerals) Tesseract does > good job most of the time, but sometimes it doesn't recognize number > correctly. For example this image of number 27 > <https://voyager.lupomesky.cz/misc/tessfail1.png> gets recognized as > "2/". How can I improve the reliability? Is expecting 100% success rate too > much? > > -- > 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/a9d54920-2112-4322-9dea-f0fba5762a6c%40googlegroups.com > <https://groups.google.com/d/msgid/tesseract-ocr/a9d54920-2112-4322-9dea-f0fba5762a6c%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/CAMgOLLz5ThbcKFT_zuW5dsHM2R0iNroiYn%3DETyX4Z8ii1eWhWg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
