This is a custom patch I am working on for Quartz Composer. With given parameters it breaks the image into a grid, then for each cell in that grid a weighting is given depending on the amount of white in the corresponding section on the image.

It still has a couple of bugs in it, which when worked out, I will make another video better showing the potential of this patch.

My aim is to use this patch in an Interactive Installation I am currently working on.