forked from: forked from: Voronoi Face

画像をボロノイ図で描画
画像のエッジ付近は細かく、それ以外の領域は大雑把にボロノイ領域を描画

based on もっちりボロノイ図 by knd
@see http://wonderfl.net/c/vRZn

Fortune's algorithm - Wikipedia, the free encyclopedia
@see http://en.wikipedia.org/wiki/Fortune's_algorithm

解説：planet-ape|blog - Voronoi Face
@see http://www.planet-ape.net/blog/archives/884

2値化グレースケールエッジ検出
@see http://d.hatena.ne.jp/flashrod/20061015

PsychedelicCam
@see http://wonderfl.net/c/12Rl

Yearbook Photos - Interactive Art by Golan Levin and Collaborators
@see http://www.flong.com/projects/yearbook/

@author fumix