On 6/12/07, Robert Cummings <robert@xxxxxxxxxxxxx> wrote:
On Tue, 2007-06-12 at 21:46 +0200, Tijnema wrote: > On 6/12/07, Robert Cummings <robert@xxxxxxxxxxxxx> wrote: > > 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. > > Yes noticed that problem too, but this seems quite easy to crack, Get > the text from the image, get the color of the text and search for tha > tcolor circle. > > Tijnema > > Btw, I clicked the pixel in the middle, and did 10 refreshes, and I > had 5 right.... *lol* Yeah, some of the circles are pretty big... not sure he accounted for the circle in question being completely hidden by other circles. Cheers, Rob.
Well, that gives me a more easier way to crack it, The top-most circle is the one to be clicked :) Tijnema -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
