图片仿射变换

import cv2
import numpy as np

img = cv2.imread('image0.jpg', 1)
cv2.imshow('src', img)
imgInfo = img.shape
height = imgInfo[0]
width = imgInfo[1]
# src 3 -> dst 3(左上角, 左下角, 右上角)
matSrc = np.float32([[0, 0], [0, height - 1], [width - 1, 0]])
matDst = np.float32([[50, 50], [300, height - 200], [width - 300, 100]])
# 组合
# 获取一个矩阵的组合(原矩阵三个点的矩阵, 新矩阵三个点的矩阵)
matAffine = cv2.getAffineTransform(matSrc, matDst)
dst = cv2.warpAffine(img, matAffine, (width, height))

cv2.imshow('dst', dst)
cv2.waitKey(0)