人脸登陆facelogin

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_Key
        public static string Api_Key = "OVYw5Ok0y9U8n6CfVPYt0wfZ";
        //Secret_Key
        public 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*1080
            foreach (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 handler
            videoSourcePlayer1.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("
") + 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.jpg
            string 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();
        }




    }
}