c# winform实现人脸识别系统（文末附源码）

2019年6月9日 396次阅读来源: 遂宁黑哥

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）。

《c# winform实现人脸识别系统（文末附源码）》数据库字段

本系统功能介绍：

《c# winform实现人脸识别系统（文末附源码）》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。

《c# winform实现人脸识别系统（文末附源码）》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

《c# winform实现人脸识别系统（文末附源码）》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）。

《c# winform实现人脸识别系统（文末附源码）》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。

《c# winform实现人脸识别系统（文末附源码）》录入信息

登记完成，信息读入数据库：

《c# winform实现人脸识别系统（文末附源码）》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,

《c# winform实现人脸识别系统（文末附源码）》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

《c# winform实现人脸识别系统（文末附源码）》应用列表

《c# winform实现人脸识别系统（文末附源码）》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

《c# winform实现人脸识别系统（文末附源码）》摄像头

FaceCommon是我自己写的一个类，获取已插USB摄像头硬件id

《c# winform实现人脸识别系统（文末附源码）》 FaceCommon

最后最核心的还是人脸对比

《c# winform实现人脸识别系统（文末附源码）》人脸对比

核心代码到此结束文末附源码，喜欢的话给个赞和打赏，不理解的地方，欢迎各位留言或加qq

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;

}

    原文作者：遂宁黑哥
    原文地址: https://www.jianshu.com/p/1d3a29f1a81e
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