计算机视觉（一）

计算机rgb图片（https://baike.baidu.com/item/RGB/342517?fr=aladdin）

#coding:utf-8

import matplotlib.pyplot as plt

import matplotlib.image as mpimg

rgb_img = mpimg.imread( "./imgs/7.jpg") ;

plt.figure

f,(a1,a2,a3,a4) = plt.subplots( 1, 4, figsize=( 200, 200))

r = rgb_img[:,:, 0]#（w,h,channel）

g = rgb_img[:,:, 1]

b = rgb_img[:,:, 2]

a1.set_title( 'R channel')

a1.imshow(r)

a2.set_title( 'G channel')

a2.imshow(g)

a3.set_title( 'B channel')

a3.imshow(b)

a4.set_title( "RGB channel")

a4.imshow(rgb_img)

plt.show()