cv2.imread()+plt.imread()+Image.open()的读取与相应的显示图片
import cv2
import matplotlib.pyplot as plt
from PIL import Image
'''
OpenCV:
img = cv2.imread()读取，cv2.imshow(img)显示；
matplotlib.pyplot:
img = plt.imread()读取，plt.imshow(img)显示；
PIL.Image:
img = Image.open()读取，img.show()显示；
'''
img1 = cv2.imread('C:/Users/Administrator/Desktop/meihua.jpg')
cv2.imshow('meihua',img1)
cv2.waitKey(0) # 保持图形界面，直到你在终端输入任意字符
cv2.destroyAllWindows()
print(img1.shape) # h,w,c
print(img1.size) # h*w*c
img2 = plt.imread('C:/Users/Administrator/Desktop/meihua.jpg')
plt.imshow(img2)
print(img2.shape) # h,w,c
print(img2.size) # h*w*c
img3 = Image.open('C:/Users/Administrator/Desktop/meihua.jpg')
img3 # 或者img.show()
print(img3.size) # h,w
# print(img3.size) 会报错，因为Image没有size属性
在notebook中运行代码如下：
