人脸认证源码faceIdentify详解

using AForge.Video.DirectShow;using face;using Newtonsoft.Json;using Newtonsoft.Json.Linq;using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Data.SqlClient;using System.Drawing;using System.Drawing.Imaging;using System.IO;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Windows.Forms;namespace Camtest{ public partial class faceIdentify : Form {  public faceIdentify()  {   InitializeComponent();   //启动默认在屏幕中间   this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;  }  //Api_Key  public static string Api_Key = "OVYw5Ok0y9U8n6CfVPYt0wfZ";  //Secret_Key  public static string Secret_Key = "aCN3lupCarq3rC9G8Rylqz1d36Towp8G";  FilterInfoCollection videoDevices;  VideoCaptureDevice videoSource;  public int selectedDeviceIndex = 0;  public int selectedPICIndex = 0;  //窗体加载  private void faceIdentify_Load(object sender, EventArgs e)  {   //显示为正在检测   this.label1.Text = this.label2.Text = this.label6.Text = this.label9.Text = "正在识别";   // 刷新可用相机的列表   videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);   comboBoxCameras.Items.Clear();   for (int i = 0; i < videoDevices.Count; i++)   {    comboBoxCameras.Items.Add(videoDevices[i].Name.ToString());   }   if (comboBoxCameras.Items.Count > 0)    comboBoxCameras.SelectedIndex = 0;   picsize.SelectedIndex = 0;   //打开摄像头   openCamera();  }  //打开摄像头  public void openCamera()  {   selectedPICIndex = picsize.SelectedIndex;   selectedDeviceIndex = comboBoxCameras.SelectedIndex;   //连接摄像头。   videoSource = new VideoCaptureDevice(videoDevices[selectedDeviceIndex].MonikerString);   videoSource.VideoResolution = videoSource.VideoCapabilities[selectedDeviceIndex];   // 枚举所有摄像头支持的像素，设置拍照为1920*1080   foreach (VideoCapabilities capab in videoSource.VideoCapabilities)   {    if (selectedPICIndex == 0)    {     if (capab.FrameSize.Width == 1920 && capab.FrameSize.Height == 1080)     {      videoSource.VideoResolution = capab;      break;     }     if (capab.FrameSize.Width == 1280 && capab.FrameSize.Height == 720)     {      videoSource.VideoResolution = capab;      break;     }    }    else    {     if (capab.FrameSize.Width == 1280 && capab.FrameSize.Height == 720)     {      videoSource.VideoResolution = capab;      break;     }    }   }   videoSourcePlayer1.VideoSource = videoSource;   // set NewFrame event handler   videoSourcePlayer1.Start();  }  /// <summary>  /// 签到的按钮  /// 先保存图片，然后进行比较，获取的id，查询  /// </summary>  /// <param name="sender"></param>  /// <param name="e"></param>  private void qiandao_Click(object sender, EventArgs e)  {   Users users = FaceIdentifys(SavePicture());   this.label1.Text = users.age.ToString();   this.label2.Text = users.name;   this.label6.Text = users.phone;   this.label9.Text = users.address;   if (users.picture != null)   {    this.pictureBox1.Image = Image.FromFile(users.picture, false);   }  }  //关闭窗口  private void faceIdentify_FormClosing(object sender, FormClosingEventArgs e)  {   DialogResult r = MessageBox.Show("确定要退出程序?", "操作提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Question);   if (r != DialogResult.OK)   {    e.Cancel = true;   }   videoSourcePlayer1.Stop();//停止摄像头   videoSourcePlayer1.Dispose();  }  /// <summary>  /// 人脸识别  /// </summary>  /// <param name="filename"></param>  public static Users FaceIdentifys(string filename)  {   long id = 0;   string ids = "";   double scores_num = 0;   Users user = new Users();   var client = new Baidu.Aip.Face.Face(Api_Key, Secret_Key);   var image1 = File.ReadAllBytes(filename);   var result = client.User.Identify(image1, new[] { "gr_test" }, 1, 1);   //先判断脸是不是在上面，在继续看有匹配的没，否则提示放上脸   //得到根节点   JObject jo_result = (JObject)JsonConvert.DeserializeObject(result.ToString());   if ((string)jo_result["error_msg"] != null)   {    MessageBox.Show("对不起，请把脸放上！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Stop);   }   else   {    //检测到脸    //得到result节点    JArray jo_age = (JArray)JsonConvert.DeserializeObject(jo_result["result"].ToString());    foreach (var val in jo_age)    {     id = long.Parse(((JObject)val)["uid"].ToString()); //获取uid     string scores = ((JObject)val)["scores"].ToString();//获取scores     int num1 = scores.IndexOf("/n") + 2;     int num2 = scores.LastIndexOf("]")-8;     ids = scores.Substring(num1, num2);     scores_num =double.Parse(ids);    }    if (scores_num > 80)    {     user = QueryUsersById(id);     if (user.id != 0)     {      MessageBox.Show("签到成功，已检测到您的信息", "操作提示", MessageBoxButtons.OK, MessageBoxIcon.Information);     }     else     {      MessageBox.Show("对不起，系统根据您的脸未检测到信息", "操作提示", MessageBoxButtons.OK, MessageBoxIcon.Stop);     }    }    else {     MessageBox.Show("对不起，系统根据您的脸未检测到信息", "操作提示", MessageBoxButtons.OK, MessageBoxIcon.Stop);    }   }   return user;  }  /// <summary>  /// 保存图片  /// </summary>  public string SavePicture()  {   if (videoSource == null)   {    return null;   }   Bitmap bitmap = videoSourcePlayer1.GetCurrentVideoFrame();   //图片名称，年月日时分秒毫秒.jpg   string fileName = DateTime.Now.ToString("yyyyMMddHHmmssff") + ".jpg";   //获取项目的根目录   string path = AppDomain.CurrentDomain.BaseDirectory;   string picture = path + "//picture//" + fileName;   //将图片保存在服务器里面   bitmap.Save(picture, ImageFormat.Jpeg);   bitmap.Dispose();   return picture;  }  /// <summary>  /// 根据编号查询用户信息  /// </summary>  /// <param name="id"></param>  /// <returns></returns>  public static Users QueryUsersById(long id)  {   Users user = new Users();   string sql = "select * from users where id = @id";   using (SqlDataReader reader = SqlHelper.ExcuteReader(sql, CommandType.Text, new SqlParameter("@id", id)))   {    if (reader.Read())    {     user.id = long.Parse(reader[0].ToString());     user.name = reader[1].ToString();     user.age = Convert.ToInt32(reader[2]);     user.phone = reader[3].ToString();     user.password = reader[4].ToString();     user.address = reader[5].ToString();     user.picture = reader[6].ToString();    }   }   return user;  }  //取消的按钮  private void close_Click(object sender, EventArgs e)  {   //停止摄像头   videoSourcePlayer1.Stop();   this.Close();   welcome we = new welcome();   we.Show();  } }}