Tesseract is "noise sensitive" - you need to pre-process image before OCR. See FAQ[1]
[1] https://code.google.com/p/tesseract-ocr/wiki/FAQ#Output_without_result_or_bad_output Zdenko On Mon, Nov 4, 2013 at 1:24 AM, Valent <[email protected]> wrote: > Hi, > got back to doing this project, plan is to ocr my gas and power meters so > I can get some insight how much of each we use them over time. > I got past first block, and instead or "Empty page" error I get some OCR > results, finally! > > After reading blog posts and forum posts about how tesseract works still > can't fully figure it out, so your help is much appreciated. > > I have this image to work with: http://imgur.com/CiruqHF > > Tesseract gets this as result "3 2 9 3 3... 3 -" which is far from > perfect because meter reads "32830,8" > > From what I have read so far I guess that my next step to get better > results is to take 10-20 pictures and train tesseract, right? > > WIki on training tesseract is not clear for newbie like me. Now I got > Qt-Box-Editor installed on my Linux Mint laptop and got first box text file > done: > https://www.dropbox.com/s/8hjgh21wu41d2l9/struja.box > > I have followed these instructions: > https://github.com/this-is-ari/python-tesseract-3.02-training > > But how do I now train for more samples? > > What do I do after I take more pictures from my power meter and gas meter? > Should I train tesseract for each meter separately or together? > > > -- > -- > You received this message because you are subscribed to the Google > Groups "tesseract-ocr" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/tesseract-ocr?hl=en > > --- > 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]. > For more options, visit https://groups.google.com/groups/opt_out. > -- -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/tesseract-ocr?hl=en --- 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]. For more options, visit https://groups.google.com/groups/opt_out.
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