Detect colour on webcam

Hello,

I'm currently working on a interactive installation assignment.

Does anyone know if webcam-flash can detect colours and collide with things?

Lets say there's a bunch of stuff on the screen that ppl will need to touch to interact with the installation, and i might need those ppl to wear gloves or hold a stick with a very contrasting colour to interact with the objects.

It's possible if i'm using macromedia director right?
But i'd like know if it's possible using flash? ^_^