The purpose of the simple java captcha project is to make it easy to generate good-looking captchas with a minimum of programming and preferably little configuration. SimpleCaptcha is an open Source Java implementation for captcha creation. Integration is
P. Patil, M. Patil, N. Barhate, A. Patil, and P. Harne. International Journal on Recent and Innovation Trends in Computing and Communication, 3 (3):
1042--1044(March 2015)