人脸检测源码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Imaging;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using AForge;
using AForge.Controls;
using AForge.Imaging;
using AForge.Video;
using AForge.Video.DirectShow;
using face;namespace Camtest
{public partial class facedetection : Form{/// <summary>/// 人脸检测/// </summary>public facedetection(){InitializeComponent();//启动默认在屏幕中间this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;}FilterInfoCollection videoDevices;VideoCaptureDevice videoSource;public int selectedDeviceIndex = 0;public int selectedPICIndex = 0;/// <summary>/// 加载窗体/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void Form1_Load(object sender, EventArgs e){// 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;this.label4.Text = this.label5.Text = this.label7.Text = this.label9.Text = this.label11.Text = this.label13.Text = "正在识别";this.label4.ForeColor = Color.Red;this.label5.ForeColor = Color.Red;this.label7.ForeColor = Color.Red;this.label9.ForeColor = Color.Red;this.label11.ForeColor = Color.Red;this.label13.ForeColor = Color.Red;openCan();}//关闭窗体private void Form1_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();}//实时显示照片private void videoSourcePlayer1_Click(object sender, EventArgs e){}/// <summary>/// 打开摄像头/// </summary>public void openCan(){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*1080foreach (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 handlervideoSourcePlayer1.Start();}//保存图片private void button2_Click(object sender, EventArgs e){if (videoSource == null)return;Bitmap bitmap = videoSourcePlayer1.GetCurrentVideoFrame();//图片名称，年月日时分秒毫秒.jpgstring fileName = DateTime.Now.ToString("yyyyMMddHHmmssff") + ".jpg";//获取项目的根目录String path = AppDomain.CurrentDomain.BaseDirectory;//将图片保存在服务器里面bitmap.Save(path + "\\picture\\" + fileName, ImageFormat.Jpeg);bitmap.Dispose();//进行面部特征识别facemodel facem = face_test.FaceDetect(path + "\\picture\\" + fileName);this.label4.Text = facem.age;      //年龄this.label5.Text = facem.beauty;  //漂亮度string expression = facem.expression;//表情if (expression.Equals("0")){this.label7.Text = "不笑";}else if (expression.Equals("1")){this.label7.Text = "微笑";}else if (expression.Equals("2")){this.label7.Text = "大笑";}string gender = facem.gender;//性别if (gender.Equals("male")){this.label9.Text = "男";}else{this.label9.Text = "女";}string glasses = facem.glasses;//是否戴眼镜if (glasses.Equals("0")){this.label11.Text = "无眼镜";}else if (glasses.Equals("1")){this.label11.Text = "普通眼镜";}else{this.label11.Text = "墨镜";}string race = facem.race;//人种if (race.Equals("yellow")){this.label13.Text = "黄人";}else if (race.Equals("white")){this.label13.Text = "白人";}else if (race.Equals("black")){this.label13.Text = "黑人";}else if (race.Equals("arabs")){this.label13.Text = "棕人";}}//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();}}
}