thank you all. Lorenzo Bolzani <[email protected]> 于2019年3月8日周五 下午5:06写道：
> > I someone wants to try this and is looking for a python implementation > here is one: > > > http://scikit-image.org/docs/dev/auto_examples/segmentation/plot_niblack_sauvola.html > > https://github.com/scikit-image/scikit-image/pull/905/files/bb6af8ec723776fc821654847aec04a652f70042 > > binary_phansalkar = threshold_sauvola(image, w=25, method='phansalkar', > r=50) > > > (I did not try it yet) > > > > Lorenzo > > > Il giorno ven 8 mar 2019 alle ore 08:28 'Lars Fricke' via tesseract-ocr < > [email protected]> ha scritto: > >> 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 >> <https://groups.google.com/d/msgid/tesseract-ocr/CADXFd_1tz1JhwfD%3DBb9VfP4gpz%3DH_G8nnuDtzpMz9rK7YsAfvw%40mail.gmail.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/CAMgOLLxevU0ZyuH7iTBehQUs_YyfnfWwLcUEZeZc0SP_mOJjEA%40mail.gmail.com > <https://groups.google.com/d/msgid/tesseract-ocr/CAMgOLLxevU0ZyuH7iTBehQUs_YyfnfWwLcUEZeZc0SP_mOJjEA%40mail.gmail.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/CAPiKE23A%2Bg6NN3BPOGA4jsy-H256T_odXbvm2dtK9H%2BERVTENA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
