Organize
the colors in the image in order of brightness (i.e. from the darkest to
the brightest) and easily step through the colors in that order (usually
the darker colors are inside a mole, while the surrounding skin has
lighter colors).
Detect
substructures in a mole.
Block or
view specific colors in the image. Computer monitors support millions of
colors and the filter can block or pass a single color, or a window
(i.e. range) of colors.
Stepping the filter through mole colors
and detecting substructures: