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Posts Tagged ‘edge detection’

How not to design a CAPTCHA

Author : admin Published: July 13th, 2011
How not to design a CAPTCHA

Unfortunately Sony missed the entire point of a CAPTCHA. Instead of using an obfuscated image which is difficult for computers to recognize the characters, they include the CAPTCHA's unobfuscated characters in HTML and use CSS and JavaScript to make the characters appear slightly distorted. While taking a Digital Image and Video Processing [...]

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