python opencv載入圖片

# -*- coding: utf-8 -*-
"""
Created on Sun Oct 14 19:58:58 2018

@author: lin
"""

import numpy as np
import cv2

# Load an color image in grayscale
img = cv2.imread("G:\\picture\\flower.jpg", 0)
# cv2.namedWindow('image', cv2.WINDOW_NORMAL)
cv2.imshow('image',img)
cv2.waitKey(0)
cv2.destroyAllWindows()

# 保存圖像
# cv2.imwrite('messigray.png',img)