Search found 2 matches

by unimatrix27
2016-01-29T02:53:57-07:00
Forum: Users
Topic: Pre-Process for OCR with tesseract. Only Digits.
Replies: 9
Views: 13804

Re: Pre-Process for OCR with tesseract. Only Digits.

Thanks for your reply. I realize what threshold does however it seems the results are still better if tesseract gets a pure black and white image as input.. i actually did not think about having tesseract only detect digits (and a comma, a dot and a dash) - now i found out how to configure that and ...
by unimatrix27
2016-01-28T05:47:33-07:00
Forum: Users
Topic: Pre-Process for OCR with tesseract. Only Digits.
Replies: 9
Views: 13804

Pre-Process for OCR with tesseract. Only Digits.

Hi, I have to process screenshots from excel-style tables with mostly numbers in it. Since the screenshot always has the same size and all columns are at static pixel positions, I have implemented a script to crop out individual cells into small images. THey have a very low resolution of just 15-19 ...