The operation implements a totalistic cellular automaton rule. It runs
a given number of iterations. In each iteration each pixel is replaced
by 255 if the number of pixels in his neighborhood is not smaller
than the threshold and by 0 otherwise.
Options
radius: The radius of the neighborhood. A radius 3 means for example that the neighborhood has a size of 7x7 pixel. count threshold: The minimum number of
pixels in the neighborhood that must be alive (255) for the central
pixel to become or stay alive. iterations: The number of iterations the
operation runs. In each iteration the values of the preceding iteration
are used to compute the new result.
Parameter
The only parameter is the input image. It should be an 8-bit mask image, containing only the intenbsities 0 and 255.