openCV实现图像融合的示例代码

void addWeighted(InputArray src1, double alpha, InputArray src2,double beta, double gamma, OutputArray dst, int dtype=-1);

'''
图像融合（对图像加权）：img1,img2 --> resize --> cv2.addWeighted() --> show
'''
import cv2
import matplotlib.pyplot as plt

# 1 read
fg = cv2.imread('fg.png', 1)
bg = cv2.imread('bg.png', 1)
fg = cv2.cvtColor(fg,cv2.COLOR_BGR2RGB)
bg = cv2.cvtColor(bg,cv2.COLOR_BGR2RGB)

# 2 resize
fg = cv2.resize(fg,(850,550),interpolation=cv2.INTER_AREA)
bg = cv2.resize(bg,(850,550),interpolation=cv2.INTER_AREA)

# 3 addWeighted
w1 = 0.8
w2 = 0.2
re = cv2.addWeighted(fg,w1,bg,w2,0)

# 4 show
plt.subplot(131)
plt.imshow(fg)
plt.title('fg')

plt.subplot(132)
plt.imshow(bg)
plt.title('bg')

plt.subplot(133)
plt.imshow(re)
plt.title('re')

plt.show()