This effect transforms your original image into a painting by a mad artist.
The artist is pretty odd, but you can tell him:
|•||The number of brush strokes he'll use in the painting|
|•||The average stroke width. |
|•||The average stroke length. |
|•||The irregularity of the strokes (the madness of the painter).|
|•||Paint over the original image or paint over some colored paper background .|
|•||The center of the swirling madness (click on the preview image)|
A related but different effect is the Paul Klee effect.