title: Displaying an Image Type Double in Matlab
body: <p>I have an image typed double in Matlab. How can I <code>imshow</code> it? Thanks.</p>
  
  <pre><code>load('file.mat');
  b=d.l{2,1}.a{1,1}; %//b is an image &lt;96x96x4 double&gt;
  imshow(b);
  </code></pre>