Hi, we use the local Phansalkar binarizer with default values. you can try that very easy in the imagej fiji package. works perfect for all kinds of input, especially with scans with poor lightning and bad contrast.
there is a nice comparison and yet another method in https://www.google.com/url?sa=t&source=web&rct=j&url=https://arxiv.org/pdf/1609.08078&ved=2ahUKEwjasPKLgvLgAhXLJVAKHdrHCV8QFjAAegQIBRAB&usg=AOvVaw1VmuXsg5fEG3hTTkg_7WcZ regards lars 易鑫 <[email protected]> schrieb am Mi., 20. Feb. 2019, 03:56: > Hello,everyone: > In the tesseract wiki " > https://github.com/tesseract-ocr/tesseract/wiki/ImproveQuality";, it says > the importance of binarisation to the final recognition result. I have > tired many methods for choose a suitable threshold, but I have not find a > very perfect method. > Does anyone have the experience on choose a suitable threshold for > binarisation,please teach me,thanks a lot. > > Sorry for my poor english. > > -- > 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]. > To post to this group, send email to [email protected]. > 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/b0db5b19-386a-4d43-9506-7fb85801ef87%40googlegroups.com > <https://groups.google.com/d/msgid/tesseract-ocr/b0db5b19-386a-4d43-9506-7fb85801ef87%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 [email protected]. To post to this group, send email to [email protected]. 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/CADXFd_1tz1JhwfD%3DBb9VfP4gpz%3DH_G8nnuDtzpMz9rK7YsAfvw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
