opencv图像特效之灰度处理

import cv2
img0 = cv2.imread("E:\\code\\conputer_visual\\data\\0.jpg", 0)
img1 = cv2.imread("E:\\code\\conputer_visual\\data\\0.jpg", 1)
print(img0.shape)
print(img1.shape)
cv2.imshow("gray", img0)
cv2.imshow("colour", img1)
cv2.waitKey()