Thanks for the hint. A little bit of blur and resizing indeed helped. El viernes, 18 de junio de 2021 a las 12:53:00 UTC+2, zdenop escribió:
> With tessdata from [1] and oem 0 you can get: > > tesseract unnamed.png - --psm 7 --oem 0 > 09:41 Dm > > Otherwise: > > tesseract unnamed.png - --psm 7 > 0%:41 pm > > With small preprocessing (blur and resize, so letter have high around 30 > points) you can get : > > tesseract time.png - --psm 7 > 09:41 pm > > > [1] https://github.com/tesseract-ocr/tessdata > > Zdenko > > > št 17. 6. 2021 o 15:51 Juanjo Gómez Navarro <juanjo.go...@gmail.com> > napísal(a): > >> I have this simple image with a date: >> [image: test.png] >> Tesseract produces the output: >> >> *$ tesseract test.png -* >> *Estimating resolution as 233* >> *03:41 pm* >> >> In similar images, I have the problem that it misunderstands 1's for 7's >> and the other way around. How can I help Tesseract to recognise these >> characters? >> >> My version of Tesseract is: >> >> *$ tesseract -v* >> *tesseract 5.0.0-alpha-20210401-130-g7a308* >> * leptonica-1.79.0* >> * libgif 5.1.4 : libjpeg 8d (libjpeg-turbo 2.0.3) : libpng 1.6.37 : >> libtiff 4.1.0 : zlib 1.2.11 : libwebp 0.6.1 : libopenjp2 2.3.1* >> * Found AVX2* >> * Found AVX* >> * Found FMA* >> * Found SSE4.1* >> * Found OpenMP 201511* >> >> -- >> 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-oc...@googlegroups.com. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/tesseract-ocr/801b7f63-2f79-41d0-8d48-b00cfe3f292en%40googlegroups.com >> >> <https://groups.google.com/d/msgid/tesseract-ocr/801b7f63-2f79-41d0-8d48-b00cfe3f292en%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/3785f285-0c0a-46ac-ba1c-0f7ef76c107en%40googlegroups.com.
