OpenCV图像透明融合

任务目标

• 将两张图片融合，按照图像混合公式$g(x)=(1-\alpha )f0(x)+\alpha f1(x)$
  

裁剪图像使两图像大小相等

# 图像混合
import cv2
import numpy as np
img1=cv2.imread('image.jpg')
img2=cv2.imread('image1.jpg')

print(type(img1))
print(img1.shape)
print(img2.shape)

img3 = img1[0:300,0:300]
img4 = img2[0:300,0:300]

cv2.imwrite('img3.jpg', img3)
cv2.imwrite('img4.jpg', img4)

融合图像

img3=cv2.imread('img3.jpg')
img4=cv2.imread('img4.jpg')

# dst = cv2.absdiff(img3, img4)
dst=cv2.addWeighted(img4,0.7,img3,0.3,0)

cv2.imshow('dst',dst)
cv2.waitKey(0)
cv2.destroyAllWindow()