shape_predictor_81_face_landmarks https://github.com/codeniko/shape_predictor_81_face_landmarks
Delaunay Triangulation https://www.learnopencv.com/delaunay-triangulation-and-voronoi-diagram-using-opencv-c-python/
Face Morph https://www.learnopencv.com/face-morph-using-opencv-cpp-python/