import cv2 as cv
import numpy as np


def rot_img_2(img: "np.ndarray") -> "list[np.ndarray]":
    if img.shape[0] > img.shape[1]:  # 0: height, 1: width
        return [np.rot90(img), np.rot90(img, 3)]
    return [img, np.rot90(img, 2)]


def main():
    img = cv.imread("img/1.jpg")
    rot = rot_img_2(img)
    cv.imshow("1", rot[0])
    cv.imshow("2", rot[1])
    cv.waitKey(0)


if __name__ == '__main__':
    main()