title: Matlab `imagesc`: how to display with smooth colors?
body: <p>I have a matrix which I display with <code>imagesc</code>. Now I'm asked to make an "interpolated" version (i.e. display with smoother colors).</p>
  
  <p>While I could compute a larger interpolated matrix, I seem to remember that there was a command to switch between two such display modes, either a little command in the style of <code>axis equal</code> or some Property - but I just cannot find it. </p>