COLORMAP COLORMAP Image Colormap Function

Usage

Changes the colormap for the current figure.  The generic syntax 
for its use is

  colormap(map)

where map is a an array organized as 3 \times N),
which defines the RGB (Red Green Blue) coordinates for each color in the
colormap.  You can also use the function with no arguments to recover
the current colormap

  map = colormap

