opencv基础

先展现第一个程序

import cv2image = cv2.imread("1.jpg", 0) #读进来的图像是灰色的cv2.show("zwx", image)k = cv2.waitKey(0)if k == 27: # esc的ASCII码值    cv2.destroyAllWindows()elif k == ord('s'):    cv2.imwrite("2.png", image)    cv2.destroyAllWindows()