人脸变形
https://www.learnopencv.com/face-morph-using-opencv-cpp-python/
https://www.learnopencv.com/delaunay-triangulation-and-voronoi-diagram-using-opencv-c-python/
https://www.learnopencv.com/delaunay-triangulation-and-voronoi-diagram-using-opencv-c-python/