Thread:Talk:CAPTCHA/Captcha: a newer idea

hello,

These are some approaches i can think of instead of a text based captcha.

The image idea where users are asked to spot the odd one out like demonstrated or find all the similar images like mentioned in here.

Also a picture with a part chipped in could be shown and chipped pictures could be given as options

like find the missing part from a jigsaw puzzle.

The image which would be shown is http://imgur.com/uefeb08

http://imgur.com/KEJqCg3 is the picture which would be the correct option.

The other options could be rotated versions of this, which would not be so easy for the bot to match. (unless it somehow worked some digital processing algorithm and matched the color gradients or something like that).

This is a good option for people who do not know english or are illiterate and maybe would not understand questions like : is this a bird, plane , superman? after being shown a picture.

Tell me what you think

(Sorry to upload those images on imgur. i dont know how to put them on the wiki .Hope that is ok)