python实现微信头像加国旗

# -*- coding: utf8 -*-
import cv2
# 读取头像和国旗图案
img_head = cv2.imread('/Users/cuixiaoyan/biancheng/python/guoqi/img/touxiang.jpeg')
img_flag = cv2.imread('/Users/cuixiaoyan/biancheng/python/guoqi/img/guoqi.png')
# 获取头像和国旗图案宽度
w_head, h_head = img_head.shape[:2]
w_flag, h_flag = img_flag.shape[:2]
# 计算图案缩放比例
scale = w_head / w_flag / 4
# 缩放图案
img_flag = cv2.resize(img_flag, (0, 0), fx=scale, fy=scale)
# 获取缩放后新宽度
w_flag, h_flag = img_flag.shape[:2]
# 按3个通道合并图片
for c in range(0, 3):
    img_head[w_head - w_flag:, h_head - h_flag:, c] = img_flag[:, :, c]
# 保存最终结果 路径可以写为绝对 或者相对
cv2.imwrite('/Users/cuixiaoyan/biancheng/python/guoqi/img/duang.png', img_head)