title: OpenCV warping from one triangle to another
body: <p>I would like to map one triangle inside an OpenCV Mat to another one, pretty much like warpAffine does (check it <a href="http://opencv.itseez.com/doc/tutorials/imgproc/imgtrans/warp_affine/warp_affine.html" rel="nofollow noreferrer">here</a>), but for triangles instead of quads, in order to use it in a Delaunay triangulation.</p>
  <p>I know one is able to use a mask, but I'd like to know if there's a better solution.</p>