title: MATLAB image processing installed, but imhist doesn't work
body: <p>I was trying to get a histogram for an image (uint8, Using MATLAB R2016a), but am getting the following message:</p>
  
  <pre><code>Undefined function or variable 'imhist'.
  </code></pre>
  
  <p>I have double checked, and my image processing toolbox is installed (as seen in the attached <a href="https://i.stack.imgur.com/0dyds.jpg" rel="nofollow noreferrer">screenshot</a>). I have looked around for quite a while, but still couldn't spot the problem.</p>