SimpleCaptcha is an open Source Java implementation for captcha creation. Integration is left to the developers of the individual projects because I don't (want) to know your implementations...
an example:
With the initial drop on source forge the simplecaptcha implementation can render different jpeg captchas with
configurable:
- background colors
- background gradient fill colors
- fonts (2 default and limited to the amount of font's on your system)
- font color
- random character generator (characters can be configured)
- first name generator (5000 + first Names)
- optional border around the captcha
- border color (defaults to black)
- border thinness (defaults to one)
with the second drop there is:
- a new distortion algorithm (shadowgimpyImp)
- a Chinese captcha
- somewhat more documentation
with the third drop there was:
- a new distortion algorithm (FishEye).
- improvements to the default captcha
some more examples:
- Category: Captcha
- License: BSD License
- HomePage: http://simplecaptcha.sourceforge.net/index.html









