Задача 3. Не вижу разницы

import numpy as np

def get_dominant_color_info(
    image: np.ndarray[np.uint8],
    threshold: int = 5,
) -> tuple[np.uint8, float]:
    if threshold < 1:
        raise ValueError
    different_colours, different_colours_cnt = np.unique(image, return_counts=True)
    different_colours_cnt_max =  []
    for  i in range(different_colours.shape[0]):
        mask = abs(different_colours - different_colours[i]) < threshold
        cnt = np.sum(different_colours_cnt[mask])
        different_colours_cnt_max.append(cnt)
    max_id = np.argmax(different_colours_cnt_max)
    the_most_common_color = different_colours[max_id]
    the_most_common_color = np.uint8(the_most_common_color)
    percentage = different_colours_cnt_max[max_id] / (image.shape[0] * image.shape[1]) * 100
    return the_most_common_color, percentage

res = get_dominant_color_info(np.array([ [1, 2, 3], [4, 5, 6] ]), 6)