人脸登陆：
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 facelogin : Form{//Api_Keypublic static string Api_Key = "OVYw5Ok0y9U8n6CfVPYt0wfZ";//Secret_Keypublic static string Secret_Key = "aCN3lupCarq3rC9G8Rylqz1d36Towp8G";public facelogin(){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;//窗体加载private void facelogin_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;//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*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();}/// <summary>/// 点击确定的按钮/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void button2_Click(object sender, EventArgs e){//先获取用户名//然后在提取图片//先查询用户名，看看有没有该用户名//有该用户名的话继续判断人脸对应不，没有的话提示没有该用户string name = this.textBox1.Text;Users user = QueryUsersByName(name);if (((string)(user.name))!=""){//有该用户，判断摄入的人脸和人脸库中的对比FaceVerify(SavePicture(),user);}else { //说明没有该用户，提示用户重新输入用户名MessageBox.Show("对不起，检测到没有该用户，请重新输入", "操作提示", MessageBoxButtons.OK, MessageBoxIcon.Stop);}}/// <summary>/// 人脸认证【登陆】/// </summary>public void FaceVerify(string filename,Users users){var client = new Baidu.Aip.Face.Face(Api_Key ,Secret_Key);var image1 = File.ReadAllBytes(filename);var result = client.User.Verify(image1,(users.id).ToString(), new[] { "gr_test" }, 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());string resu = jo_age.ToString();int num1 = resu.IndexOf("\n") + 2;int num2 = resu.LastIndexOf("]") - 8;string ids = resu.Substring(num1, num2);if (ids != null || !ids.Equals("")){double scores_num = double.Parse(ids);if (scores_num > 80){MessageBox.Show("登陆成功，已检测到您的信息", "操作提示", MessageBoxButtons.OK, MessageBoxIcon.Information);}else{MessageBox.Show("对不起，脸与账户不对应，请换张脸试试", "操作提示", MessageBoxButtons.OK, MessageBoxIcon.Stop);}}}}/// <summary>/// 根据编号查询用户信息/// </summary>/// <param name="id"></param>/// <returns></returns>public static Users QueryUsersByName(string name){Users user = new Users();string sql = "select * from users where name = @name";using (SqlDataReader reader = SqlHelper.ExcuteReader(sql, CommandType.Text, new SqlParameter("@name", name))){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;}/// <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.jpgstring 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>/// 取消的按钮/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void close_Click(object sender, EventArgs e){//停止摄像头videoSourcePlayer1.Stop();this.Close();welcome we = new welcome();we.Show();}}
}
)
