News for hackers. Stuff that matters.

A comment on Breaking the MintEye image CAPTCHA in 23 lines of Python. Parent comment

Re:Breaking the MintEye image CAPTCHA in 23 lines of Python by experiment0 on Saturday January 19, 2013 @11:28AM (#5083784)
What? Edge detection is pretty much the only use for the Sobel operator.

http://en.wikipedia.org/wiki/Sobel_operator

[ Parent | on HN ]

There are no comments on this comment yet.