Monday, May 23, 2011

Captcha OCR #1

I have decided to start building a library of captchas that I have successfully written OCR algorithms for. I am planning to use this blog to help me document my steps along the way and keep a sort of running tally of my progress.

The first captcha I decided to do was one from d2jsp.org. It was definitely one of the easier captchas, as it had a constant font, no permutations, no artifacts, and no color differentiation.




My testing has given me 100% accuracy in reading these captchas so far. These captchas required no pre-processing and were just run, as is, through my OCR engine.

1 comment:

  1. After making dofollow blog, try to create a great blog.

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