Weighted Linde-Buzo-Gray Stippling Demo

Stippling tool, as described in this paper by O. Deussen, M. Spicker and Q. Zheng. [github repo]
The source image is converted to grayscale and then edge-detected and blended back with the source (~sharpening).
Then a large number of cells is spawns and evolved (removal, split, ...) until the maximum number of points is reached or the confidence is good enough.
Drag and drop image on the canvas below.