Hia - I am looking for functions that may help in the area of motion capture. This is rather an abstract problem at this point. So maybe its a function that recognizes color contrast., or one that can see the pixel color in an image plane. Maybe a script that can track an internal object. I am just starting to take a more serious look at MEL and would like to apply it to this problem of capturing motion of some sort. I am not sure where to start with this maybe you know? Thanks folks, Russ.