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();
}
}
}