如何在python中使用opencv设置图片dpi？

import cv2
import numpy as np

image = cv2.imread('image.jpg')

height, width = image.shape[:2]

output = np.zeros((height, width, 3), dtype=np.uint8)

output_dpi = 300  # 设置为所需的DPI值
output = cv2.resize(output, (int(width * output_dpi / 72), int(height * output_dpi / 72)))

output[:height, :width] = image

cv2.imwrite('output.jpg', output)