c# winform人脸识别_winform facedetect

本系统开发环境为Visual Studio 2010，使用.net 4.0开发，使用AForge库和Aipsdk库和Newtonsoft.json库和system.sqlite库以及第三方插件DevExpress完成。

本系统特点：分为人脸库的录入，将信息保存在sqlite数据库中，该数据库中使用一张表，字段有用户姓名，性别，工号，人脸图片（图像存入数据库中可以点击此链接查看）。

数据库字段
本系统功能介绍：

打卡系统界面
首先构造出的是本界面，首先说下个人信息栏，上方的人脸录入和打卡是一个功能只要是调用本机摄像头，找到一张合适的角度拍下此张图片，当界面运行时：界面隐藏了“确定打卡”和“登记按钮”，因为不确定的是当前是打卡还是录入信息。

界面运行时
如果选择打卡，该打卡功能只要是调用摄像头，此时界面变成

打卡界面
如果点击确认打卡，循环读取数据库人脸信息，当相似度大于90的时候跳出循环，读取该条信息显示在界面上，打卡状态为成功。如果没有大于90的就返回重新打卡（不方便人脸不截图）。

打卡成功
下面我将说下信息录入功能，当点击信息录入时打卡按钮变成人脸录入，个人信息文本框变成可用，此时可以输入此人的信息，信息输入完毕，打开人脸录入，最后点击登记功能。

录入信息
登记完成，信息读入数据库：

数据库
此时整个功能就实现了。

下面讲一下具体功能实现，人脸识别当然不是自己写的，调用的是百度AI开放平台的SDK,

百度AI
然后需要创建一个应用列表，需要使用到的是API Key和Secret Key

应用列表

调用代码
然后调用摄像头方面代码。首先是获取摄像头代码

摄像头
FaceCommon是我自己写的一个类，获取已插USB摄像头硬件id

FaceCommon
最后最核心的还是人脸对比

人脸对比

核心代码到此结束文末附源码

FaceCommon代码

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using AForge.Video.DirectShow;

namespace RenLianShiBie

{

public class FaceCommon
 
{
 
    #region 方法
 
    /// <summary>
 
    /// 获取已插USB摄像头硬件Id
 
    /// </summary>
 
    /// <returns></returns>
 
    public static List<string> GetCameraDeviceId()
 
    {
 
        List<string> _cameraList = new List<string>();
 
        FilterInfoCollection _filterInfoCollection = new FilterInfoCollection(FilterCategory.VideoInputDevice);//获取所有已插USB摄像头驱动信息
 
        if (_filterInfoCollection != null && _filterInfoCollection.Count > 0)
 
        {
 
            for (int i = 0; i < _filterInfoCollection.Count; i++)
 
            {
 
                _cameraList.Add(_filterInfoCollection[i].MonikerString); //向集合中添加USB摄像头硬件Id
 
            }
 
            _cameraList.Remove(""); //移出空项
 
            return _cameraList;
 
        }
 
        else
 
        {
 
            return null;
 
        }
 
    }
 
    #endregion
 
}

}

宏定义

public class UserImation

{
 
    /// <summary>
 
    /// 用户
 
    /// </summary>
 
    public const string strUser = "用户";
 
    /// <summary>
 
    /// 性别
 
    /// </summary>
 
    public const string strGender = "性别";
 
    /// <summary>
 
    /// 工号
 
    /// </summary>
 
    public const string strNumber = "工号";
 
    /// <summary>
 
    /// 人脸库图片
 
    /// </summary>
 
    public const string strFace = "人脸库图片";
 
}
 
public class UserImation2
 
{
 
    /// <summary>
 
    /// 用户
 
    /// </summary>
 
    public static string strUser { get; set; }
 
    /// <summary>
 
    /// 性别
 
    /// </summary>
 
    public static string strGender { get; set; }
 
    /// <summary>
 
    /// 工号
 
    /// </summary>
 
    public static string strNumber { get; set; }
 
    /// <summary>
 
    /// 人脸库图片
 
    /// </summary>
 
    public static string strFace { get; set; }
 
}

from1.cs如下

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using DevExpress.XtraEditors;

using AForge.Video.DirectShow;

using AForge.Video;

using System.Threading;

using Newtonsoft.Json.Linq;

using System.IO;

namespace RenLianShiBie

{

public partial class Form1 : Form
 
{
 
    public Form1()
 
    {
 
        InitializeComponent();
 
    }
 
    /// <summary>
 
    /// USB摄像头硬件Id集合
 
    /// </summary>
 
    private List<string> _cameraList = new List<string>();
 
    /// <summary>
 
    /// 视频驱动
 
    /// </summary>
 
    private VideoCaptureDevice _videoCaptureDevice;
 
    /// <summary>
 
    /// 人脸图片
 
    /// </summary>
 
    private Image imgobj;
 
    /// <summary>
 
    /// 路径
 
    /// </summary>
 
    string strPath = @"F:\中地学习\人脸识别\测试\" ;
 
    /// <summary>
 
    /// 录入信息按钮
 
    /// </summary>
 
    /// <param name="sender"></param>
 
    /// <param name="e"></param>
 
    private void simpleButton1_Click(object sender, EventArgs e)
 
    {
 
        simpleButton2.Visible = false;
 
        simpleButton4.Text = "人脸录入";
 
        simpleButton4.Visible =  true;
 
        simpleButton3.Visible = true;
 
        textEdit1.Properties.ReadOnly = textEdit2.Properties.ReadOnly = textEdit3.Properties.ReadOnly = false;
 
    }
 
    /// <summary>
 
    /// 界面初始化
 
    /// </summary>
 
    /// <param name="sender"></param>
 
    /// <param name="e"></param>
 
    private void Form1_Load(object sender, EventArgs e)
 
    {
 
 
 
        simpleButton2.Visible=false;
 
        simpleButton4.Text = "打卡";
 
        simpleButton4.Visible = true;
 
        simpleButton3.Visible = false;
 
        #region 填充摄像头下拉框
 
        _cameraList = FaceCommon.GetCameraDeviceId();//获取所有USB摄像头硬件Id集合
 
        if (_cameraList != null && _cameraList.Count > 0)
 
        {
 
            foreach (var item in _cameraList)
 
            {
 
                labelControl7.Text = item; //向下拉框中添加摄像头列表
 
            }
 
        }
 
        else
 
        {
 
            //如何未获取到USB摄像头则禁用此选择
 
            labelControl7.Text = "当前无摄像头"; ;
 
        }
 
        #endregion
 
 
 
    }
 
    /// <summary>
 
    /// 人脸录入
 
    /// </summary>
 
    /// <param name="sender"></param>
 
    /// <param name="e"></param>
 
    private void simpleButton4_Click(object sender, EventArgs e)
 
    {
 
        if (simpleButton4.Text == "打卡")
 
        {
 
            simpleButton1.Visible = false;
 
            simpleButton2.Visible = true;
 
        }
 
        if (this.labelControl7.Text != null)
 
        {
 
            _videoCaptureDevice = new VideoCaptureDevice(this.labelControl7.Text);
 
            _videoCaptureDevice.NewFrame += HandNewFrame;
 
        }
 
        if (_videoCaptureDevice != null)
 
        {
 
            _videoCaptureDevice.Start();
 
        }
 
    }
 
    /// <summary>
 
    /// 播放事件
 
    /// </summary>
 
    /// <param name="sender"></param>
 
    /// <param name="args"></param>
 
    private void HandNewFrame(object sender, NewFrameEventArgs args)
 
    {
 
        try
 
        {
 
            this.Invoke(new Action(() =>
 
            {
 
                if (args != null)
 
                {
 
                    this.pictureBox1.Image = args.Frame.Clone() as Image;
 
                //  imgobj = args.Frame.Clone() as Image;
 
                  // imgobj.Save(@"F:\中地学习\人脸识别\测试\" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".jpg");
 
                }
 
            }));
 
        }
 
        catch (Exception exception)
 
        {
 
            //throw;
 
        } 
 
    }
 
    /// <summary>
 
    /// 全部信息录入
 
    /// </summary>
 
    /// <param name="sender"></param>
 
    /// <param name="e"></param>
 
    private void simpleButton3_Click(object sender, EventArgs e)
 
    {
 
        MySqlite.MySqliteConnection();
 
        UserImation2.strUser = textEdit1.Text;
 
        UserImation2.strGender = textEdit2.Text;
 
        UserImation2.strNumber = textEdit3.Text;
 
        if(UserImation2.strUser=="")//图片以姓名命名，要求必须先填用户姓名，才能录照片
 
        {
 
            return;
 
        }
 
        //关闭
 
        if (_videoCaptureDevice != null)
 
        {
 
            _videoCaptureDevice.SignalToStop();
 
        }
 
        //点击全部录入时也就是拍照,获取定格图片
 
        imgobj = this.pictureBox1.Image;
 
        imgobj.Save(strPath + textEdit1.Text + ".jpg");
 
        MySqlite.MyInsertTable(UserImation2.strUser, UserImation2.strGender, UserImation2.strNumber, strPath + textEdit1.Text + ".jpg");
 
    }
 
    private void simpleButton2_Click(object sender, EventArgs e)
 
    {
 
        //关闭
 
        if (_videoCaptureDevice != null)
 
        {
 
            _videoCaptureDevice.SignalToStop();
 
        }
 
        imgobj = this.pictureBox1.Image;
 
        imgobj.Save(strPath +@"\打卡\" + "1.jpg");
 
        var API_KEY = "zKASe0f2AtMvzdd05fBQEEl4";
 
        var SECRET_KEY = "Q7C5nwHw9aLA815vL60mRRkhProZusq7";
 
        Baidu.Aip.Face.Face client = new Baidu.Aip.Face.Face(API_KEY, SECRET_KEY);
 
        MySqlite.MySqliteConnection();
 
        while(true)
 
        {
 
            string strPa = "";
 
            int nNum = 0;
 
          Dictionary<int ,List<string>> dic=  MySqlite.MySelectGridViewTable();
          foreach (KeyValuePair<int, List<string>> ergodic in dic)
          {
 
              foreach (var myValues in ergodic.Value)
 
              {
 
                  nNum++;
 
                  if (nNum == 1)
 
                  {
 
                      textEdit1.Text = myValues;
 
                  }
 
                  else if (nNum == 2)
 
                  {
 
                      textEdit2.Text = myValues;
 
                  }
 
                  else if (nNum == 3)
 
                  {
 
                      textEdit3.Text = myValues;
 
                  }
 
                  else if (nNum == 4)
 
                  {
 
                      // textEdit4.Text = myValues;
 
                      strPa = myValues;//获取最后一个图片的位置
 
                  }
 
                  else
 
                  {
 
                  }
 
 
 
              }
 
 
 
          }
 
                    var faces = new JArray
 
                    {
 
                        new JObject
 
                        {
 
                            {"image", ReadImg(strPa)},
 
                            {"image_type", "BASE64"},
 
                            {"face_type", "LIVE"},
 
                            {"quality_control", "LOW"},
 
                            {"liveness_control", "NONE"},
 
                        },
 
                        new JObject
 
                        {
 
                            {"image", ReadImg(strPath +@"\打卡\"+ "1.jpg")},
 
                            {"image_type", "BASE64"},
 
                            {"face_type", "LIVE"},
 
                            {"quality_control", "LOW"},
 
                            {"liveness_control", "NONE"},
 
                        }
 
                    };
 
                    var result = client.Match(faces);
 
            try
 
            {
 
                double dData = double.Parse(result.First.Next.Next.Next.Next.Next.First.First.First.ToString());
 
                if (dData >= 90)
 
                {
 
                    textEdit4.Text = "打卡成功";
 
                    break;
 
                }
 
            }
 
            catch (System.Exception ex)
 
            {
 
 
 
            }
 
 
 
        }
 
    }
 
    /// <summary>
 
    /// 格式转换
 
    /// </summary>
 
    /// <param name="img"></param>
 
    /// <returns></returns>
 
    public string ReadImg(string img)
 
    {
 
        return Convert.ToBase64String(File.ReadAllBytes(img));
 
    }
 
}

}

数据库代码

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Data.SQLite;

using System.Data;

using DevExpress.XtraEditors;

using System.IO;

using System.Drawing;

namespace RenLianShiBie

{

class MySqlite
 
{
 
    static SQLiteConnection sqlCnn = null;
 
    /// <summary>
 
    /// 数据库链接
 
    /// </summary>
 
    public static void MySqliteConnection()
 
    {
 
        try
 
        {
 
            string strPath = @"F:\中地学习\yuanma\FacecorePlatform_53da9c13-237f-4e2b-a5bd-29b74c3ea02e\faceView\RenMan.db";
 
            sqlCnn = new SQLiteConnection();
 
            sqlCnn.ConnectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + strPath;
 
            sqlCnn.Open();
 
            if (sqlCnn.State != ConnectionState.Open)
 
            {
 
                XtraMessageBox.Show("数据库连接失败 ");
 
                return;
 
            }
 
        }
 
        catch (System.Exception ex)
 
        {
 
            return;
 
        }
 
    }
 
    /// <summary>
 
    /// 创建表
 
    /// </summary>
 
    public static void MyCreateTable()
 
    {
 
        SQLiteCommand mDbCmd = sqlCnn.CreateCommand();
 
        mDbCmd.CommandText = "SELECT COUNT(*) FROM sqlite_master where type='table' and name='QrCode';";
 
        if (0 == Convert.ToInt32(mDbCmd.ExecuteScalar()))
 
        {
 
            string sql = "CREATE TABLE " + "QrCode" + "(" + "用户 string,性别 string,工号 string,  人脸库 oleobject" + ")";
 
            SQLiteCommand oledbCmdup1 = new SQLiteCommand(sql, sqlCnn);
 
            oledbCmdup1.ExecuteNonQuery();
 
        }
 
        else
 
        {
 
        }
 
    }
 
    /// <summary>
 
    /// 插入
 
    /// </summary>
 
    public static void MyInsertTable(string strUser,string strGender,string strNumber,string strFace)
 
    {
 
        //读取人脸图片
 
        FileStream fileStream = new FileStream(strFace, FileMode.Open);
 
        byte[] bFile = new byte[fileStream.Length];//分配数组大小
 
        fileStream.Read(bFile, 0, (int)fileStream.Length);//将文件内容读进数组
 
        fileStream.Close();//关闭文件对象
 
        SQLiteCommand com = sqlCnn.CreateCommand();
 
        com.CommandText = "Insert into QrCode(用户,性别,工号,人脸库) Values(@用户,@性别, @工号,@人脸库)";
 
        com.Parameters.AddWithValue("@用户", strUser);
 
        com.Parameters.AddWithValue("@性别", strGender);
 
        com.Parameters.AddWithValue("@工号", strNumber);
 
        com.Parameters.AddWithValue("@人脸库", bFile);
 
        com.ExecuteNonQuery();
 
        XtraMessageBox.Show("增加人员信息成功");
 
    }
 
    /// <summary>
 
    /// 查询
 
    /// </summary>
 
    /// <param name="table"></param>
 
    /// <returns></returns>
 
    public static Dictionary<int ,List<string>> MySelectGridViewTable()
    {
 
        string strUser = "";
 
        string strGender = "";
 
        string strNumber = "";
 
        string strFace = "";
 
        Dictionary<int ,List<string>> dic = new Dictionary<int,List<string>>();
        List<string> lstInformation = new List<string>();
 
        string sql = "select * from QrCode";
 
        SQLiteCommand oledbCmdup = new SQLiteCommand(sql, sqlCnn);
 
        SQLiteDataReader r = oledbCmdup.ExecuteReader();
 
        int num = 0;
 
        while (r.Read())
 
        {
 
            num++;
 
            strUser = r[UserImation.strUser].ToString();
 
            strGender = r[UserImation.strGender].ToString();
 
            strNumber = r[UserImation.strNumber].ToString();
 
            SQLiteCommand com = sqlCnn.CreateCommand();
 
            com.CommandText = "Select 人脸库 From QrCode where 用户=" + "'" + strUser + "'";
 
            byte[] bFile = (byte[])com.ExecuteScalar();//读取之后转换成二进制字节数组
 
            if (bFile == null)
 
            {
 
                XtraMessageBox.Show("数据出错");
 
                return null;
 
            }
 
            MemoryStream stream = new MemoryStream(bFile);
 
            Image img = Image.FromStream(stream);//将二进制字节数组还原成原本的图像
 
            img.Save(@"F:\中地学习\人脸识别\测试\临时数据\" + num + ".jpg");
 
            strFace = @"F:\中地学习\人脸识别\测试\临时数据\" + num + ".jpg";
 
            lstInformation.Add(strUser);
 
            lstInformation.Add(strGender);
 
            lstInformation.Add(strNumber);
 
            lstInformation.Add(strFace);
 
            dic.Add(num, lstInformation);
 
        }
 
        return dic;
 
    }
 
}

}