title: Heat map generator of a floor plan image
body: <p>I want to generate a heat map image of a floor. I have the following things:</p>
  
  <ol>
  <li>A black &amp; white .png image of the floor</li>
  <li>A three column array stored in Matlab.
  -- The first two columns indicate the X &amp; Y coordinates of the floorpan image
  -- The third coordinate denotes the "temperature" of that particular coordinate</li>
  </ol>
  
  <p>I want to generate a heat map of the floor that will show the "temperature" strength in those coordinates. <em>However, I want to display the heat map on top of the floor plan so that the viewers can see which rooms lead to which "temperatures".</em></p>
  
  <p>Is there any software that does this job? Can I use Matlab or Python to do this?</p>
  
  <p>Thanks,</p>
  
  <p>Nazmul</p>