人工智能几行代码实现换脸

本篇介绍的换脸方法需要借助Face++，关于Face++的API，大家可自行查看说明文档，都比较简单。

文档地址：https://console.faceplusplus.com.cn/documents/20813963

 PYTHON：

import requests
import simplejson
import json
import base64
 
#Face++网址：[url]https://console.faceplusplus.com.cn/dashboard[/url]
#第一步，获取人脸关键点
def find_face(imgpath):
    print("正在查找……")
    http_url = 'https://api-cn.faceplusplus.com/facepp/v3/detect'
    data = {"api_key": '自己申请',
            "api_secret": '自己申请TLJC',
            "image_url": imgpath, "return_landmark": 1}
    files = {"image_file": open(imgpath, "rb")}
    response = requests.post(http_url, data=data, files=files)
    req_con = response.content.decode('utf-8')
    req_dict = json.JSONDecoder().decode(req_con)
    this_json = simplejson.dumps(req_dict)
 
    this_json2 = simplejson.loads(this_json)
    print(this_json2)
    faces = this_json2['faces']
    list0 = faces[0]
    rectangle = list0['face_rectangle']
    #print(rectangle)
    return rectangle
 
#第二步，换脸，其中图片的大小应不超过2M
# number表示换脸的相似度
def merge_face(image_url1, image_url2, image_url, number):
 
    ff1 = find_face(image_url1)
    ff2 = find_face(image_url2)
 
    rectangle1 = str(str(ff1['top']) + "," + str(ff1['left']) + "," + str(ff1['width']) + "," + str(ff1['height']))
    rectangle2 = str(ff2['top']) + "," + str(ff2['left']) + "," + str(ff2['width']) + "," + str(ff2['height'])
    print(rectangle2)
    url_add = "https://api-cn.faceplusplus.com/imagepp/v1/mergeface"
    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()
 
    data = {"api_key": '自己申请',
            "api_secret": '自己申请TLJC',
            "template_base64": f1_64, "template_rectangle": rectangle1,
            "merge_base64": f2_64, "merge_rectangle": rectangle2, "merge_rate": number}
 
    response = requests.post(url_add, data=data)
    req_con1 = response.content.decode('utf-8')
    #print(req_con1)
    req_dict = json.JSONDecoder().decode(req_con1)
    result = req_dict['result']
    imgdata = base64.b64decode(result)
    file = open(image_url, 'wb')
    file.write(imgdata)
    file.close()
 
image1 = r"E:	estimg01.jpg"
image2 = r"E:	estimg02.jpg"
image = r"E:	estimgh.jpg"
 
merge_face(image2, image1, image, 90)

C#：

/*POST请求类*/
 
using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Threading;
 
namespace MgLiveCOM_Eyes
{
    public static class HttpHelper4MultipartForm
    {
        public class FileParameter
        {
            public byte[] File
            {
                get;
                set;
            }
 
            public string FileName
            {
                get;
                set;
            }
 
            public string ContentType
            {
                get;
                set;
            }
 
            public FileParameter(byte[] file) : this(file, null)
            {
            }
 
            public FileParameter(byte[] file, string filename) : this(file, filename, null)
            {
            }
 
            public FileParameter(byte[] file, string filename, string contenttype)
            {
                this.File = file;
                this.FileName = filename;
                this.ContentType = contenttype;
            }
        }
        private static readonly Encoding encoding = Encoding.UTF8;
        /// <summary>
        /// MultipartForm请求
        /// </summary>
        /// <param name="postUrl">服务地址</param>
        /// <param name="userAgent"></param>
        /// <param name="postParameters">参数</param>
        /// <returns></returns>
        public static HttpWebResponse MultipartFormDataPost(string postUrl, string userAgent, Dictionary<string, object> postParameters)
        {
            string text = string.Format("----------{0:N}", Guid.NewGuid());
            string contentType = "multipart/form-data; boundary=" + text;//multipart类型
            byte[] multipartFormData = HttpHelper4MultipartForm.GetMultipartFormData(postParameters, text);
            return HttpHelper4MultipartForm.PostForm(postUrl, userAgent, contentType, multipartFormData);
        }
 
        private static HttpWebResponse PostForm(string postUrl, string userAgent, string contentType, byte[] formData)
        {
            HttpWebRequest httpWebRequest = WebRequest.Create(postUrl) as HttpWebRequest;
            if (httpWebRequest == null)
            {
                throw new NullReferenceException("request is not a http request");
            }
          
            httpWebRequest.Method = "POST";//post方式
            httpWebRequest.SendChunked = false;
            httpWebRequest.KeepAlive = true;
            httpWebRequest.Proxy = null;
            httpWebRequest.Timeout = Timeout.Infinite;
            httpWebRequest.ReadWriteTimeout = Timeout.Infinite;
            httpWebRequest.AllowWriteStreamBuffering = false;
            httpWebRequest.ProtocolVersion = HttpVersion.Version11;
            httpWebRequest.ContentType = contentType;
            httpWebRequest.CookieContainer = new CookieContainer();
            httpWebRequest.ContentLength = (long)formData.Length;
 
            try
            {
                using (Stream requestStream = httpWebRequest.GetRequestStream())
                {
                    int bufferSize = 4096;
                    int position = 0;
                    while (position < formData.Length)
                    {
                        bufferSize = Math.Min(bufferSize, formData.Length - position);
                        byte[] data = new byte[bufferSize];
                        Array.Copy(formData, position, data, 0, bufferSize);
                        requestStream.Write(data, 0, data.Length);
                        position += data.Length;
                    }
                    requestStream.Close();
                }
            }
            catch (Exception ex)
            {
                return null;
            }
 
            HttpWebResponse result;
            try
            {
                result = (httpWebRequest.GetResponse() as HttpWebResponse);
            }
            catch (WebException arg_9C_0)
            {
                result = (arg_9C_0.Response as HttpWebResponse);
            }
            return result;
        }
 
        public static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
        {
            return true;
        }
        /// <summary>
        /// 从表单中获取数据
        /// </summary>
        /// <param name="postParameters"></param>
        /// <param name="boundary"></param>
        /// <returns></returns>
        private static byte[] GetMultipartFormData(Dictionary<string, object> postParameters, string boundary)
        {
            Stream stream = new MemoryStream();
            bool flag = false;
            foreach (KeyValuePair<string, object> current in postParameters)
            {
                if (flag)
                {
                    stream.Write(HttpHelper4MultipartForm.encoding.GetBytes("
"), 0, HttpHelper4MultipartForm.encoding.GetByteCount("
"));
                }
                flag = true;
                if (current.Value is HttpHelper4MultipartForm.FileParameter)
                {
                    HttpHelper4MultipartForm.FileParameter fileParameter = (HttpHelper4MultipartForm.FileParameter)current.Value;
                    string s = string.Format("--{0}
Content-Disposition: form-data; name="{1}"; filename="{2}"
Content-Type: {3}

", new object[]
                    {
                        boundary,
                        current.Key,
                        fileParameter.FileName ?? current.Key,
                        fileParameter.ContentType ?? "application/octet-stream"
                    });
                    stream.Write(HttpHelper4MultipartForm.encoding.GetBytes(s), 0, HttpHelper4MultipartForm.encoding.GetByteCount(s));
                    stream.Write(fileParameter.File, 0, fileParameter.File.Length);
                }
                else
                {
                    string s2 = string.Format("--{0}
Content-Disposition: form-data; name="{1}"

{2}", boundary, current.Key, current.Value);
                    stream.Write(HttpHelper4MultipartForm.encoding.GetBytes(s2), 0, HttpHelper4MultipartForm.encoding.GetByteCount(s2));
                }
            }
            string s3 = "
--" + boundary + "--
";
            stream.Write(HttpHelper4MultipartForm.encoding.GetBytes(s3), 0, HttpHelper4MultipartForm.encoding.GetByteCount(s3));
            stream.Position = 0L;
            byte[] array = new byte[stream.Length];
            stream.Read(array, 0, array.Length);
            stream.Close();
            return array;
        }
    }
}
 
 
 
调用示例
//参数字典
Dictionary<string, object> verifyPostParameters = new Dictionary<string, object>();
verifyPostParameters.Add("api_key", "KEY");
verifyPostParameters.Add("api_secret", "SECRET");
verifyPostParameters.Add("return_landmark", "1");
verifyPostParameters.Add("return_attributes", "gender,age,smiling,headpose,facequality,blur,eyestatus,emotion,ethnicity,beauty,mouthstatus,eyegaze,skinstatus");
Bitmap bmp = new Bitmap("/tmp/1.jpg"); // 图片地址
byte[] fileImage;
using (Stream stream1 = new MemoryStream())
{
    bmp.Save(stream1, ImageFormat.Jpeg);
    byte[] arr = new byte[stream1.Length];
    stream1.Position = 0;
    stream1.Read(arr, 0, (int)stream1.Length);
    stream1.Close();
    fileImage= arr;
}
//添加图片参数
verifyPostParameters.Add("image_file", new HttpHelper4MultipartForm.FileParameter(fileImage, "1.jpg", "application/octet-stream"));
HttpWebResponse verifyResponse = HttpHelper4MultipartForm.MultipartFormDataPost("https://api-cn.faceplusplus.com/facepp/v3/detect", "", verifyPostParameters);