To wait the next version of Romanesco Unu. A new object from the this next release : Kofosphere from the Creative coder Kof. You can check few code of Kof here
Demo of the Algorithm Escargot, which can analyze your picture to find the different barycenters of color area. The idea is to take a random pixel and to check around this one if there is an other pixel with the same hue, brightness or saturation. If it’s true it is added to the pool. When the work is done the barycenter is calculated as well as the size of the new pixel and remove the pixels already analyzed.