📅  最后修改于: 2022-03-11 14:45:43.563000             🧑  作者: Mango
import cv2
# Reading color image as grayscale
gray = cv2.imread("color-img.png",0)
# Showing grayscale image
cv2.imshow("Grayscale Image", gray)
# waiting for key event
cv2.waitKey(0)
# destroying all windows
cv2.destroyAllWindows()