title: python image recognition
body: <p>what I want to do is a image recognition for a simple app:</p>
  
  <ol>
  <li>given image (500 x 500) pxs ( 1 color background )</li>
  <li>the image will have only 1 geometric figure (triangle or square or smaleyface :) ) of (50x50) pxs.</li>
  <li>python will do the recognition of the figure and display what geometric figure is.</li>
  </ol>
  
  <p>any links? any hints? any API? thxs :)</p>