On Captchas, and a nifty slide for those who can read Braille visually

[pne]

There's a slide show called Accessibility Problems with Visual Verification Systems talking about visual verification systems such as captchas (those images of distorted text that are supposed to prove you're human) and problems with them.

Many slides have images of typical captchas (e.g. those provided by LiveJournal, PayPal, Passport, ...); one particular slide had a "type the text of this image into this box" which probably not many people could comply with :) (to illustrate the point, I suppose).

I'll tag fledchen, leora, and pthalogreen as probably being able to.

Comments

[allegrox.livejournal.com]

Of course, I've found that Captchas don't have to be in an unfamiliar script to be unintelligible. They're sometimes just garbled that badly. I once had to use the audio alternative, even though I have 20-20 vision.