I'm currently developing a face recognition system which will detect and extract human faces detected within a larger colour picture. This is as part of a larger project which should be able to identify the people in a picture by analysis of their facial features.
I'm looking for a large collection of digital colour images of people's faces, which are as diverse as possible (i.e. different sizes, layouts, nationalities, skin colours etc.), with which I can train and test the detection part of this system. If anyone knows of such a collection of images, I'd be very grateful.