马赛克

    img = cv2.imread('./bao.jpeg')print(img.shape)img2 = cv2.resize(img,(35,23))img3 = cv2.resize(img2,(900,666))cv2.imshow('bao',img3)cv2.waitKey(0)cv2.destroyAllWindows()

    img2 = cv2.resize(img, (90,66))img3 = np.repeat(img2, 10, axis= 0) # 重复行img4 = np.repeat(img3, 10, axis=1)  # 重复列cv2.imshow('bao',img4)cv2.waitKey(0)cv2.destroyAllWindows()

    img2 = img[::10, ::10]  # 每10个中取出一个像素cv2.namedWindow('bao', flags=cv2.WINDOW_NORMAL)cv2.resizeWindow('bao', 900, 666)cv2.imshow('bao', img2)cv2.waitKey(0)cv2.destroyAllWindows()