Can potrace or some such tracer be used to trace out regions that break along a certain kind of differing contrast? In the head sculpture in the paper, the face is a broad area with a gradual change of contrast, which borders things like the nose, hair and background. The borders between these things are much more abrupt changes in contrast. I wonder if there's some way to distinguish regions based on the amount of "tangle" inside (hair versus forehead, for instance)? Group according to certain threshholds of standard deviation of contrast per area?
select another path to mimic, and press the "engrave" button.
Well, of course we have something like this already. It's called SIOX. Its purpose is to extract regions with a similar color signature.
If we can apply SIOX to other algorithms, are we inventing something?
bob