After a review of my project today, it has been suggested i look into face recognition using AS3. I have found some cool posts but it looks quite complex for a beginner. However i am willing to have a go. I have found a source that uses real time face recognition to capture a snapshot of just the face. If i could implement this into my project it would be much better. Here is a demonstration video.

Realtime Face Detection in Flash from squidder on Vimeo

You can play here: http://robmccardle.glueserv.co.uk/facecam/v1/

Source code thanks to Squidder: http://www.squidder.com/2009/02/26/realtime-face-detection-in-flash/

This got me thinking about how these pictures may be composited on top of one another. I took a few images from the FlickrBooth set on Flickr and then played with them in Photoshop using the hard light blend mode to get an idea of what it may look like. I cropped each photo similar to how the recognition works and made then all the same size.