python打开图片的几种方法

1. opencv方法

import cv2

img_path =r"C:/Users/gf879/Pictures/Saved Pictures/cat1.jpg"

img = cv2.imread(img_path)

cv2.namedWindow('myPicture',0)

cv2.resizeWindow('myPicture', 500, 500)

cv2.imshow('myPicture',img)

cv2.waitKey()

cv2.destroyWindow('myPicture')

结果：

2. matplotlib方法

import matplotlib.pyplot as plt

img_path =r"C:/Users/gf879/Pictures/Saved Pictures/cat1.jpg"

img = plt.imread(img_path)

fig = plt.figure('show picture')

# ax = fig.add_subplot(111)

plt.imshow(img)

plt.show()

结果：

3. PIL

from PIL import Image

img=Image.open('C:/Users/gf879/Pictures/Saved Pictures/cat1.jpg')

img.show()

结果：