Python HOGDescriptor的计算函数并没有达到我的预期

我有以下代码：

import cv2
import numpy as np

    if __name__ == "__main__":

        image = cv2.imread("test.jpg")
        hog = cv2.HOGDescriptor((960, 1080), (16, 16), (8, 8), (8, 8), 9)
        des = hog.compute(image, winStride=(960, 1080))

        resized = image[0:1080, 0:960]
        des2 = hog.compute(resized)

        print(des.shape)
        print(des2.shape)

        print(des[0:len(des2)].shape)
        print(des2.shape)
        print(np.array_equal(des[0:len(des2)], des2))

其输出为：

(1148112, 1)
(574056, 1)
(574056, 1)
(574056, 1)
False

有人能解释我为什么最后会出错吗？当给定窗口步长参数时，函数计算到底做了什么

p.S.图像测试为1920乘1080