python numpy，cv2 添加水印

# 高，宽，深 image 是 （780, 960, 3）, logo(88, 240, 3)
import numpyas np

import cv2

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

logo = cv2.imread('logo.png')    

indexs = np.where(np.amin(logo, -1) >0)

image[100:188,100:340, :][indexs] = logo[indexs]

cv2.imshow('', image)

cv2.waitKey(0)

cv2.destroyAllWindows()