title: matlab rgb values dilemma
body: <p>When i wrote these commands</p>
  
  <pre><code>out = ones(size(ben))
  imshow(out)
  </code></pre>
  
  <p>the output is a white picture but i expect almost dark picture because the rgb values are 1,1,1. when i give 255,255,255 it also gives a white picture. Isn't this a dilemma ? </p>