Function Reference
— Function File: contrast (x, n)

Return a gray colormap that maximizes the contrast in an image. The returned colormap will have n rows. If n is not defined then the size of the current colormap is used instead.

See also: colormap

Demonstration 1

The following code

 image (reshape (1:100, 10, 10))
 colormap (contrast (1:100,10))

Produces the following figure

Figure 1