Face detection

Hi everyone

I've been interested in getting face detection into skimage for a while. This morning, Nathan Faggian reminded me that the highly popular Viola-Jones detector is patent encumbered (yes, if you're not careful you can use patented code in packages like OpenCV). However, the following link seems to suggest that we can work around that by training our own classifier with different features:

http://rafaelmizrahi.blogspot.com/2007/02/intel-opencv-face-detection-licens...

If there's any interest in working on this, or if you already have an algorithm available, please get in touch.

Stéfan