#https://www.learnopencv.com/image-alignment-ecc-in-opencv-c-python/
#https://docs.opencv.org/master/d4/d61/tutorial_warp_affine.html
#https://stackoverflow.com/questions/22086062/align-images-in-opencv
#https://alexanderpacha.com/2018/01/29/aligning-images-an-engineers-solution/