title: matlab image comparison
body: <p>I am trying to set up a database of images that can be used to compare
  to a current image (So if the current image is equal, or almost equal
  to the one being compared it'll give a match)</p>
  
  <p>However to start this project off I want to just compare 2 images
  using Matlab to see how the process works.</p>
  
  <p>Does anyone know how I might compare say image1.jpg and image2.jpg to
  see how closely related to each other they are? So basically if I was
  to compare image1.jpg and image1.jpg the relationship should be 100%,
  but comparing 2 different images might give me quite a close
  relationship.</p>
  
  <p>I hope that makes some sense!!!</p>
  
  <p>Thanks,</p>