8.color_channels.py

import cv2 as  cv
import numpy as np


img = cv.imread('Photos/forest.jpg')
cv.imshow('Original', img)

b,g,r = cv.split(img)


cv.imshow('Blue', b)
cv.imshow('Green', g)
cv.imshow('Red', r)




blank = np.zeros(img.shape[:2], dtype='uint8')


blue = cv.merge([b,blank,blank])
green = cv.merge([blank,g,blank])
red = cv.merge([blank,blank,r])



cv.imshow('Blue', blue)
cv.imshow('Green', green)
cv.imshow('Red', red)




print(img.shape)
print(b.shape)
print(g.shape)
print(r.shape)


merged = cv.merge([b,g,r])
cv.imshow('Merged Image', merged)



cv.waitKey(0)