Java Face Recognition Advices

I am supposed to compare two pictures whether they belong same person or not. I have not worked on face recognition in Java, so could anyone suggest me an example开发者_运维百科 code or an article to do this?

Assuming that you are aware that Java in itself doesn't have anything to do with facial recognition, and that you're hopefully asking for a Java API/library for face recognition, check this SO thread, which lists a few options such as Cybula and OpenCV.