不要再@微信官方了，自己动手一秒制作头像

# -*- coding: utf-8 -*-
"""
Created on Tue Sep 24 16:29:32 2019

@author: czh
"""
%reset -f
%clear

# In[*]
# -*- coding: utf8 -*-
import cv2
import os
os.chdir('D:\\data\\pic\\weixin')
# In[*]
#读取图片：微信头像和国旗图片
img_pic = cv2.imread('pic.jpg')
img_flag = cv2.imread('flag.jpg')

# In[*]
w_pic, h_pic = img_pic.shape[:2]

w_flag, h_flag = img_flag.shape[:2]

#修改比例，可以根据3修改比例，选择自己合适的比例
scale = w_pic / w_flag / 3

# In[*]
img_flag = cv2.resize(img_flag, (0, 0), fx=scale, fy=scale)

w_flag, h_flag = img_flag.shape[:2]

for c in range(0, 3):
    img_pic[w_pic - w_flag:, h_pic - h_flag:, c] = img_flag[:, :, c]

cv2.imwrite('picture.jpg', img_pic)
# In[*]