Tightly cropped numbers are unreadable by tesseract

[Brandon Martin]

I am looking for some help with suggestions on getting tesseract to read some tightly cropped numbers. Numbers range from 50-99. 

I've tried suggestions from the tesseract improve image and various different sizes, backgrounds, borders,  contrast etc. but I am unable to get it to read the numbers consistently. 

I've inverted the colours and tried using white borders to give a background. I tried duplicating the image so it has more to read. 

Really at a loss as to why it does not like reading these numbers when they look very clear and readable.

Does anyone with more experience have any suggestions or tricks I might be able to use to have these numbers be recognized?

[Zdenko Podobny]

> tesseract 84.png - --psm 7

84

> tesseract --version
tesseract 5.2.0-53-g80de
 leptonica-1.83.0 (Oct  8 2022, 14:19:38) [MSC v.1929 LIB Release x64]
  libgif 5.2.1 : libjpeg 6b (libjpeg-turbo 2.0.91) : libpng 1.6.37 : libtiff 4.4.0 : zlib 1.2.12 : libwebp 1.2.2 : libopenjp2 2.5.0
 Found AVX2
 Found AVX
 Found FMA
 Found SSE4.1
 Found OpenMP 2019
 Found libarchive 3.5.1 zlib/1.2.11 liblzma/5.2.4 bz2lib/1.0.6 libzstd/1.4.9
 Found libcurl/7.75.0 zlib/1.2.12 libssh2/1.10.1_DEV

Zdenko

ut 18. 10. 2022 o 20:00 Brandon Martin <brandon...@gmail.com> napísal(a):

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[Brandon Martin]

Thank you for taking the time to reply. This probably seems simple but I am very new and was not familiar with the usage of psm so this led me to do a bit of research and resulted in a working solution.
Thanks!