需要用到的介面：

獲取人臉資訊的介面：https://api-cn.faceplusplus.com/facepp/v3/detect

實現換臉的介面 ：https://api-cn.faceplusplus.com/imagepp/v1/mergeface

程式碼分為三步

程式碼：

import requests
import json
import simplejson
import base64

#第一步：獲取人臉關鍵點
def find_face(imgpath):
 """
 :param imgpath: 圖片的地址
 :return: 一個字典型別的人臉關鍵點 如：{'top': 156,'left': 108,'width': 184,'height': 184}
 """
 http_url = 'https://api-cn.faceplusplus.com/facepp/v3/detect' #獲取人臉資訊的介面
 data = {
 "api_key":"x2NyKaa6vYuArYwat4x0-NpIbM9CrwGU",#訪問url所需要的引數
 "api_secret":"OuHx-Xaey1QrORwdG7QetGG5JhOIC8g7",#訪問url所需要的引數
 "image_url":imgpath,#圖片地址
 "return_landmark":1
 }


 files = {'image_file':open(imgpath,'rb')} #定義一個字典存放圖片的地址
 response = requests.post(http_url,data=data,files=files)
 res_con1 = response.content.decode('utf-8')
 res_json = simplejson.loads(res_con1)
 faces = res_json['faces']
 list = faces[0]
 rectangle = list['face_rectangle']
 return rectangle

#第二步：實現換臉
def merge_face(image_url1,image_url2,image_url,number):
 """
 :param image_url1: 被換臉的圖片路徑
 :param image_url2: 換臉的圖片路徑
 :param image_url: 換臉後生成圖片所儲存的路徑
 :param number: 換臉的相似度
 """
 #首先獲取兩張圖片的人臉關鍵點
 face1 = find_face(image_url1)
 face2 = find_face(image_url2)
 #將人臉轉換為字串的格式
 rectangle1 = str(str(face1['top']) + "," + str(face1['left']) + "," + str(face1['width']) + "," + str(face1['height']))
 rectangle2 = str(str(face2['top']) + "," + str(face2['left']) + "," + str(face2['width']) + "," + str(face2['height']))
 #讀取兩張圖片
 f1 = open(image_url1,'rb')
 f1_64 = base64.b64encode(f1.read())
 f1.close()
 f2 = open(image_url2,'rb')
 f2_64 = base64.b64encode(f2.read())
 f2.close()

 url_add = 'https://api-cn.faceplusplus.com/imagepp/v1/mergeface' #實現換臉的介面
 data={
 "api_key": "x2NyKaa6vYuArYwat4x0-NpIbM9CrwGU","api_secret": "OuHx-Xaey1QrORwdG7QetGG5JhOIC8g7","template_base64":f1_64,"template_rectangle":rectangle1,"merge_base64":f2_64,"merge_rectangle":rectangle2,"merge_rate":number
 }
 response1 = requests.post(url_add,data=data)
 res_con1 = response1.content.decode('utf-8')
 res_dict = json.JSONDecoder().decode(res_con1)
 result = res_dict['result']
 imgdata = base64.b64decode(result)
 file=open(image_url,'wb')
 file.write(imgdata)
 file.close()

if __name__ == '__main__':
 image1 = r"meizi1.jpg"
 image2 = r"meizi.jpg"
 image3 = r"face1.jpg"
 merge_face(image1,image2,image3,100)

效果：

換臉前

要換的臉：

換臉後：

總結

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