John-Mark Bell <[EMAIL PROTECTED]> wrote: > On Wed, 23 Apr 2008, Paul Stewart wrote: > > I have produce a web form and a captcha script to stop spamming of the > > form. > > Ugh. Why is is that most captchas are a) illegible and
Thats the idea, after all, otherwise a simple bit of OCR would break them. > b) wholly inaccessible to the visually impaired? Some do have an audio option for such users. > I've never understood what's wrong > with simply asking a question that only a human could answer correctly > (e.g. "What colour is the sky?") Which could easily be defeated by a speech recognition system. So instead the text sounds like it is being shouted by someone at the back of a busy call centre. Its about the same level of difficulty to understand as the visual version. One such example is the msn registration (only had a look it was mentioned in the register register), but not much use for here as NetSurf can't get to the registration page to try it out. Cheers ---Dave -- Email: [EMAIL PROTECTED] Phone: +44- (0)7974 108301
