I want to get into making user interfaces with pd, maybe something like reading feedback of a person touching a glass panel with web cam or something similar. No idea where to start though.any suggestions? Or interacting with video from web cam feedback would be awesome to.

I've played with max msp and they have something for this, but idea with pd if it's even possible..

the web cam sort of objects are part of the visual plugins. the only one i have experience with is GEM, but it definitely had a webcam input. I remember running my face through visual effects.