opencv 仿射变换

 import cv2 as cv
 import numpy as np

 img = cv.imread('../images/face.jpg')
 h, w = img.shape[:2]
 mat_src = np.float32([[0, 0], [0, h-1], [w-1, 0]])
 mat_dst = np.float32([[50, 50], [100, h-50], [w-50, 100]])
 matAffine = cv.getAffineTransform(mat_src, mat_dst)
 dst = cv.warpAffine(img, matAffine, (w, h))
 cv.imshow('dst', dst)
 cv.waitKey(0)

原图

效果