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Optical character recognition
Posted: Thu Oct 21, 2010 2:35 pm
by josh
I want to find the x, y coordinates, or bounding box of where the numbers within the circles are located. They won't always be laid out like this or in circles. Ideally I should get some kind of output like
'1' is located at 200px X 300px lower left and 250px x 450px upper right
'2' is located at 220px X 320px lower left and 270px x 470px upper right
etc...
is there any good open source or commercial tools for processing images of these sorts?
Re: Optical character recognition
Posted: Thu Oct 21, 2010 4:27 pm
by VladSun
Well, in this case it's relatively easy to find these coordinates. You just need to find the originally used font (i.e. Arial, Verdana, etc.) build a set of different sized number and perform correlation analysis.
I bet this will achieve what you need.
Re: Optical character recognition
Posted: Fri Oct 22, 2010 11:29 am
by Jenk
Never used it, simply searched for "opensource ocr" and this came up:
http://code.google.com/p/ocropus/
Re: Optical character recognition
Posted: Fri Oct 22, 2010 5:25 pm
by Weirdan
Wouldn't work out of the box (I tried

), and has pretty scarce documentation. Perhaps it could be trained to recognize what josh wants, but it doesn't seem to be an easy task.