首先将rgb转为ycbcr,在从ycbcr转为rgb: import numpy as np import imageio import matplotlib.pyplot as plt rgb_image = imageio.imread("lena.jpg") ycbcr_image = rgb2ycbcr(rgb_image) cycle_image = ycbcr2rgb(ycbcr_image) images = [rgb_image, ycbcr_image, cycle_image] titles = ["orignal",...