Inaccessibility of CAPTCHA W3C - Alternatives to Visual Turing Tests on the Web W3C Wor... - 0 views
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Claude Almansi on 23 Mar 09A common method of limiting access to services made available over the Web is visual verification of a bitmapped image. This presents a major problem to users who are blind, have low vision, or have a learning disability such as dyslexia.