So I've started a new facebook app. I've got some facial recognition & detection stuff down and made up a simple "Celebrity lookalike" thing. It searches through your profile pics and returns the one that most looks like a celebrity, along with the celebrities picture.
I can detect the presence and area of a face in a picture, estimate the persons age, mood (happy/sad/angry). I'm sure something more awesome could be done with this. Other ideas are:
boob finder - finds boobs in your friends photos, returns them all cut-out & you have to guess which one of your friends they belong to.
ex eraser - select pictures of you an your ex, replace your ex with someone else/model/etc
Any more ideas? :p