Does anybody out there have experience with CCTV or digital video image capturing ? I'd like to be able to rapidly "check" an image from a CCTV or inexpesive digi-cam/web cam and compare it to a library of photos ie....... is the image a hexagon ? is the image a circle ? I've never tried to pull a static image from video. If you know ANYTHING about digital photography/CCTV/ webcam capture can you mail me ? I'm not sure if what I'm trying to do is even possible on the cheap. Thanks for your help.

While I have not, I talked with a guy who was doing this with the google project... http://code.google.com/p/aforge/ not sure of what he was doing, but it is a start.

Google "Ball following robot" there are several different projects that may help you out.