Legacy ImageMagick Discussions Archive

As a catchpa it is easily defeated. Just look for the pixels that don't change much and you can remove the animated overlay! A little morphology and the text becomes clear, ready for OCP to convert to plain text. A animated distortion of the text as well may help so as to remove any 'static' parts ...

Can you post your php file so that one can see the code and not just the image display? Are you using the same version of IM with PHP as with the command line? Here's the code: $possible = "112346789ABCDFGHJKLMNPQRTVWXYZ"; while (strlen(trim($captcha)) < 7) { $char = substr($possible, mt_rand(1 ...

one thing i notice is that the wheel loses quality when running the command via PHP, does that make any sense?


check the final result: http://www.bulletdrive.com/captcha/ver2/go.php
(refresh gives new captcha)

i save the captcha for 5 minutes and its the same for every user, then refresh it.

ok it works mate, thanks a bunch.

background: http://www.bulletdrive.com/captcha/ver2/text.gif animation on op of it: http://www.bulletdrive.com/captcha/ver2/wheel.gif final image: http://www.bulletdrive.com/captcha/ver2/captcha.gif right now i am getting from your tip: convert: Non-conforming drawing primitive definition `home ...

thanks fred, thast just so much information i am not sure what to grab, all my tests fail, i though this would be somewhat easy, why would -draw be needed? both images have the same size. -layers composite also not sure, there is only 1 layer with transparency, the foreground image.

for the life of me i cant get this done... i am trying to create an animated captcha. I have built the background image with the text and have the animated image to place on top but i cant seem to merge them right. What i have right now is the first frame with the text merged with the animated image ...