title: What is a maximum offset height in a ball's structuring element?
body: <p>I'm trying to use a closing morphology operation in MATLAB, <code>imclose(volume, SE)</code>, with a ball structuring element with a radius of 13 voxels.</p>
  
  <p>The process to create a ball structuring element is like this:
  <code>SE = offsetstrel('ball',r,h)</code>.</p>
  
  <p>As stated in the <a href="https://www.mathworks.com/help/images/ref/offsetstrel.html" rel="nofollow noreferrer">documentation</a>, <code>h</code> is the</p>
  
  <blockquote>
    <p>Maximum offset height, specified as a real scalar. of type double.</p>
  </blockquote>
  
  <p>What is the maximum offset height?</p>