I start by creating a mathematical rule that tells a pixel when to "hold hands" with a nearby pixel. The I find the groups of pixels that are connected to each other by hand holding and give them the same color. The image at the right shows a 400x400 pixel example of what happens with one of my early rules. My problem as an artist with this image is that the colors are too separated into regions. I want the coloured areas to push more into each other.
In order to make the colored regions overlap more, I relax the hand holding rules a bit so that the colored areas can flow a bit into each other. But now I've made the image more uniform and less well defined and to me less interesting.
In order to give my image more impact, I now use an algorithm to reduce the noise and bring some of the important features forward.