Hola,
Find attached the image, I want to use the picture and a grid and create the groups. My idea its create:
1.invert image
2.gradient on top(multiplication)
2.create tresholds
3.isolate the spots
4.and use VOP to create the groups.
But Im sure its a better simple way. I can't remember the process from my image processing class. That famous exercise, the one with rice and beans.
cheers!
-Ax