title: Drawing and Plotting graph in OpenCV
body: <p>Does OpenCV provide a function on how to draw and plot a graph? </p>
  
  <p>I found this link by Shervin Emami <a href="http://www.shervinemami.info/graphs.html" rel="noreferrer">http://www.shervinemami.info/graphs.html</a> which was created by himself. </p>