c# winform人脸识别

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)。
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数据库字段
本系统功能介绍:
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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。
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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
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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)。
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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。

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录入信息
登记完成,信息读入数据库:
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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,
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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
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应用列表

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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
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摄像头
FaceCommon是我自己写的一个类,获取已插USB摄像头硬件id
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FaceCommon
最后最核心的还是人脸对比

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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

    /// 

    /// 获取已插USB摄像头硬件Id

    /// 

    /// 

    public static List GetCameraDeviceId()

    {

        List _cameraList = new List();

        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

{

    /// 

    /// 用户

    /// 

    public const string strUser = "用户";

    /// 

    /// 性别

    /// 

    public const string strGender = "性别";

    /// 

    /// 工号

    /// 

    public const string strNumber = "工号";

    /// 

    /// 人脸库图片

    /// 

    public const string strFace = "人脸库图片";

}

public class UserImation2

{

    /// 

    /// 用户

    /// 

    public static string strUser { get; set; }

    /// 

    /// 性别

    /// 

    public static string strGender { get; set; }

    /// 

    /// 工号

    /// 

    public static string strNumber { get; set; }

    /// 

    /// 人脸库图片

    /// 

    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();

    }

    /// 

    /// USB摄像头硬件Id集合

    /// 

    private List _cameraList = new List();

    /// 

    /// 视频驱动

    /// 

    private VideoCaptureDevice _videoCaptureDevice;

    /// 

    /// 人脸图片

    /// 

    private Image imgobj;

    /// 

    /// 路径

    /// 

    string strPath = @"F:\中地学习\人脸识别\测试\" ;

    /// 

    /// 录入信息按钮

    /// 

    /// 

    /// 

    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;

    }

    /// 

    /// 界面初始化

    /// 

    /// 

    /// 

    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



    }

    /// 

    /// 人脸录入

    /// 

    /// 

    /// 

    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();

        }

    }

    /// 

    /// 播放事件

    /// 

    /// 

    /// 

    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;

        } 

    }

    /// 

    /// 全部信息录入

    /// 

    /// 

    /// 

    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> dic=  MySqlite.MySelectGridViewTable();

          foreach (KeyValuePair> 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)

            {



            }



        }

    }

    /// 

    /// 格式转换

    /// 

    /// 

    /// 

    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;

    /// 

    /// 数据库链接

    /// 

    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;

        }

    }

    /// 

    /// 创建表

    /// 

    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

        {

        }

    }

    /// 

    /// 插入

    /// 

    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");

    }

    /// 

    /// 查询

    /// 

    /// 

    /// 

    public static Dictionary> MySelectGridViewTable()

    {

        string strUser = "";

        string strGender = "";

        string strNumber = "";

        string strFace = "";

        Dictionary> dic = new Dictionary>();

        List lstInformation = new List();

        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;

    }

}

}

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