title: Differentiate between two graphs by image recognition
body: <p>How can we compare images of two graphs and differentiate them based on their shape?<br><br>
  For ex, I have a collection of graphs with me which contain images of bar, pie and all other graphs. I will match it one image which i get from an another source.The source image will also be a graph. I need to find out what type of graph it is.<br> 
  <br>How do i match it with my collection set? <br>
  <br> Any help will be appreciated.
  Thanks.</p>