This is a bit off topic, but I thought anyone interested in image processing and, particularly, texture/color and other material descriptors might find this really interested.  Check out Materials - 5 for a really cook interface for desiging materials.

http://www.youtube.com/watch?v=lngF4VVNER4&list=PLZlv_N0_O1gaCL2XjKluO7N2Pmmw9pvhE

Hope this is cool.