What is best OpenSource OCR software out there for Mac or from a website (I guess Perl and Ruby are probably okay as well) for extracting numbers out of a JPG in the following format:
http://www.whnt.com/extras/whnt/weather/7day_640.jpg
It would be best if no gui were required and it could be run from the command line.
Thanks for any information and feedback.
Tesseract. People have been able to compile and get it to run on OS X.