Re: Going from simple to super CAPTCHA

On Tue, 2007-06-12 at 15:06 -0400, Daniel Brown wrote: > > Okay, here's something I whipped up today: > > http://pilotpig.com/captcha/index.php > > Works pretty well, but keep in mind that it's in the very early > stages. I randomized the position and size to assist in throwing off > Turing detection, and added color not only to screw with the > color-detection schemes, but also in case it overlays the target > bubble. It's 600x400, so that's 240,000 potential spots to click, > with random size, location, and area coordinates thrown in the mix. Nice, one problem though... the text is unreadable on some backgrounds. I suggest you outline it or something. Easy to do by drawing the font 5 times. 4 times for the outline where you offset the drawing location by: (-1, 0), (0,1), (1,0), (0,1) Then change colour and draw the font at the original location. Cheers, Rob. -- .------------------------------------------------------------. | InterJinn Application Framework - http://www.interjinn.com | :------------------------------------------------------------: | An application and templating framework for PHP. Boasting | | a powerful, scalable system for accessing system services | | such as forms, properties, sessions, and caches. InterJinn | | also provides an extremely flexible architecture for | | creating re-usable components quickly and easily. | `------------------------------------------------------------'