python opencv 灰度圖轉換和resize函數的使用

import cv2
import numpy as np
img1 = cv2.imread('left.png',1)
img1 = cv2.resize(img1, (797,1212))
dst1 = cv2.cvtColor(img1,cv2.COLOR_BGR2GRAY)
cv2.imwrite('l.png',dst1)

img1 = cv2.imread('left.png',1)
img1 = cv2.resize(img1, (797,1212))
dst1 = cv2.cvtColor(img1,cv2.COLOR_BGR2GRAY)
cv2.imwrite('r.png',dst1)
cv2.waitKey()