title: Gaussian smoothing in MATLAB
body: <p>For an <code>m</code> x <code>n</code> array of elements with some noisy images, I want to perform <a href="http://en.wikipedia.org/wiki/Gaussian_blur" rel="noreferrer">Gaussian smoothing</a>. How do I do that in <a href="http://en.wikipedia.org/wiki/MATLAB" rel="noreferrer">MATLAB</a>?</p>
  
  <p>I've read the math involves smoothing everything with a kernel at a certain scale, but I have no idea how to do this in MATLAB.</p>