title: Smoothing edges in a colormap image
body: <p>I have a square matrix of size 'n' which is made of  numbers (1 to N) irregular but clustered.For example all 7's together, all 10's together, etc, but irregularly.   Using "image and colormap" command I get a matrix where each cluster is colored differently but with square edges.. Now I want to ruffle the edges so that there is a smooth boundary between each color. Basically I need ramps in place of steps!  I am a beginner in MATLAB.  Pl Help........... </p>