图形的合并切分

from imutils import *

image = imread('test.jpg')
image.shape  #查看形状

(400, 300, 3)

(R, G, B) = cv2.split(image)   #将三通道的数值切分出来

print(R.shape)
print(G.shape)
print(B.shape)

(400, 300)
(400, 300)
(400, 300)

merged = cv2.merge([R,G,B])

show(merged)

cv2.imshow('R',R)
cv2.imshow('G',G)
cv2.imshow('B',B)
cv2.waitKey(0)
cv2.destroyAllWindows()

因为RGB都是单通道颜色，所以在jupter下其显示都是黑白，但可以看出R红色的整体数值小，更偏白，蓝色的整体数值大，更偏黑