Hello, I have created a web extension which solves this problem. Upload image to https://imagescanner-online.com/ it will clear your noise and pixel-segment text so that you get a very good quality input, which you can feed to tesseract and get good output
Regards Ajinkya On Wed, Jun 2, 2021 at 12:13 AM Timo Richter <timo.j...@gmail.com> wrote: > Hi everyone, > > I have tried to ocr an identity card [1] and big parts were not > recognised. I do not get anything from the headline nor the first few rows. > From the middle, Tesseract partially finds correct text. There are lines > and things in the background, as usual. In the monochrome picture I could > not completely extract the letters from the background. Some gray pixels > stay there. But there is a website that does OCR and it works perfectly > [2]. Why do I get bad results and my Tesseract does not read the text? What > will the website do another way? > > > Thank you in advance, > > Timo > > > [1] > https://en.wikipedia.org/wiki/Philippine_passport#/media/File:Philippine_passport_(2016_edition)_data_page.jpg > (public domain) > [2] https://cloud.google.com/document-ai#section-2 > > -- > 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 view this discussion on the web visit > https://groups.google.com/d/msgid/tesseract-ocr/4f6d0261-5e0a-49c8-b6db-3e2b0e4ad9f5n%40googlegroups.com > <https://groups.google.com/d/msgid/tesseract-ocr/4f6d0261-5e0a-49c8-b6db-3e2b0e4ad9f5n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/CAHy6iNM46Md3%2BgnnO9H62pCQRTpbrURTg_1%2Babbu0qzyOgwiGw%40mail.gmail.com.
