def METHOD_NAME(track_map):
    color_map = np.zeros_like(track_map).astype(np.uint8)
    color_map = color_map[..., None].repeat(3, axis=-1)
    for id_cur in np.unique(track_map):
        if id_cur == 0:
            continue
        color_map[track_map == id_cur] = id2rgb(sha256num(id_cur))
    return color_map