Python opencv4.1 RGB2YUV

import cv2 as cv import numpy as np matA=cv.imread("apple.jpg") cv.imshow("apple",matA); matB=cv.cvtColor(matA,cv.COLOR_BGR2GRAY) cv.imshow("GRAY",matB) matC=cv.cvtColor(matA,cv.COLOR_BGR2RGB) cv.imsh

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