Actually, it is in a completely different league. The algorithms you linked to output bitmaps. Kopf and Lischinsk's algorithm is a vectorizer, optimized for

Actually, it is in a completely different league. The algorithms you linked to output bitmaps. Kopf and Lischinsk's algorithm is a vectorizer, optimized for old school graphics. This means that its outputs is resolution-independent. Similar tools include Potrace[1] (open source, but for black and white images) and Vector Magic[2] (multicolor, but proprietary). However, the use of Voronoï diagrams is AFAIK original, and their results are superior to hqNx at similar resolutions. [1]http://potrace.sourceforge.net/ http://potrace.sourceforge.net/ [2]http://vectormagic.com/home http://vectormagic.com/home