title: Fit image over a set of points (shape)
body: <p>I have a face image that has labelled face features (matrix stored in <code>[x y]</code> format)</p>
  
  <p><img src="https://imgur.com/2otY8Io.jpg" alt="labelled frontal face"></p>
  
  <p>I have generated depth information (a 3d mesh) for each of the labelled points, and have a matrix in <code>[x y z]</code> format, where the coordinates x and y are the same as that of the points. </p>
  
  <p>The mesh looks like this:
  <img src="https://i.imgur.com/6n7YwsB.jpg" alt="3d_mesh"></p>
  
  <p>How do I fit or warp the original image (at least the region enclosed by the points) over the 3d mesh, using the x and y coordinates for mapping? <em>I know I have to do a lot of interpolation in the 3d mesh before I see good results, but I'd like to know how to fit an image to that</em></p>