投影变换

import numpy as np
import cv2,sys
image = cv2.imread(‘E:\sy2\3\img.jpg’,cv2.IMREAD_GRAYSCALE)
h,w = image.shape
src = np.array([[0,0],[w-1,0],[0,h-1],[w-1,h-1]],np.float32)
dst = np.array([[50,50],[w/3,50],[50,h-1],[w-1,h-1]],np.float32)
#计算投影变换矩阵
p = cv2.getPerspectiveTransform(src,dst)
r = cv2.warpPerspective(image,p,(w,h),borderValue=125)
cv2.imshow(‘image’,image)
cv2.imshow(‘d3’,r)
cv2.waitKey(0)
cv2.destroyAllWindows()在这里插入代码片