title: Best image matching algorithm for accuracy?
body: <p>So I'm working on some code to determine what denomination of East Caribbean Dollar based on a 4 bpp grayscale image. I'm already taking care of any skewing/distortions but I'm looking for an image matching algorithm. I was thinking of using FFT but does anyone have any other suggestions for an algorithm that has a higher accuracy? Speed is not critical. I've added a sample image.</p>
  
  <p><a href="http://i.stack.imgur.com/nHyzp.png" rel="nofollow">Sample specimen</a></p>