Image based on the simple Peter De Jong map equations:
x’ = sin(a * y) – cos(b * x) y’ = sin(c * x) – cos(d * y)
For most values of a,b,c and d the point (x,y) moves chaotically.
The resulting image is a map of the probability that the point lies within the area represented by each pixel.Source: PDJ by Holger Lippmann on Behance.net