C# 对接第三方平台AI功能实现人脸识别

2020-07-20 本文已影响0人布岚

准备工作

第三方：华为云（https://www.huaweicloud.com/product/face.html）
摄像头操作类库：Aforge（http://www.aforgenet.com/）
JSON操作类库：Newtonsoft.Json(https://www.newtonsoft.com/json)

引入华为云人脸识别模块SDK

SDK下载地址（https://github.com/huaweicloud/huaweicloud-sdk-csharp-frs）下载后解压解压文件
copy放入项目，注：因华为SDK里有一个Demo类存在一个Main方法会出现程序启动保存问题，注释即可资源管理器

在项目中引入 Aforge

选择项目右键>管理NuGet程序包>搜索Aforge>安装下面六个组件
>AForge
>AForge.Imaging
>AForge.Math
>AForge.Video
>AForge.Video.DirectShow
>AForge.Video.Control
引入 Aforge

在项目中引入 Newtonsoft.Json

选择项目右键>管理NuGet程序包>搜索Newtonsoft.Json>安装Newtonsoft.Json 引入 Newtonsoft.Json

前期准备工作完成，开工

1. 窗体设计

人脸检测窗体设计

控件信息

控件类型	控件名称	控件描述
VideoSourcePlayer	vispShoot	视频控件，用于显示摄像头拍摄信息
Button	btnDetect	拍照检测按钮
Button	btnStart	开始自动检测按钮
Button	btnDetect	结束自动检测按钮
Timer	timeShoot	自动检测定时器，用于定时拍照检测
PictureBox	pbFaceImage	拍照图片展示图形框，用于展示拍照得到的图像
TextBox	TextBox	文本框，用于展示人脸检测结果

附设计自动生成代码

namespace huaweiCloudDemo
{
    partial class 人脸检测
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要修改
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.vispShoot = new AForge.Controls.VideoSourcePlayer();
            this.btnDetect = new System.Windows.Forms.Button();
            this.groupBox1 = new System.Windows.Forms.GroupBox();
            this.label2 = new System.Windows.Forms.Label();
            this.label1 = new System.Windows.Forms.Label();
            this.pbFaceImage = new System.Windows.Forms.PictureBox();
            this.lblResult = new System.Windows.Forms.Label();
            this.btnStart = new System.Windows.Forms.Button();
            this.btnStop = new System.Windows.Forms.Button();
            this.timeShoot = new System.Windows.Forms.Timer(this.components);
            this.txtResult = new System.Windows.Forms.TextBox();
            this.groupBox1.SuspendLayout();
            ((System.ComponentModel.ISupportInitialize)(this.pbFaceImage)).BeginInit();
            this.SuspendLayout();
            // 
            // vispShoot
            // 
            this.vispShoot.Location = new System.Drawing.Point(64, 37);
            this.vispShoot.Name = "vispShoot";
            this.vispShoot.Size = new System.Drawing.Size(527, 447);
            this.vispShoot.TabIndex = 0;
            this.vispShoot.Text = "videoSourcePlayer1";
            this.vispShoot.VideoSource = null;
            // 
            // btnDetect
            // 
            this.btnDetect.Font = new System.Drawing.Font("宋体", 14F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
            this.btnDetect.Location = new System.Drawing.Point(234, 523);
            this.btnDetect.Name = "btnDetect";
            this.btnDetect.Size = new System.Drawing.Size(184, 63);
            this.btnDetect.TabIndex = 1;
            this.btnDetect.Text = "拍照检测";
            this.btnDetect.UseVisualStyleBackColor = true;
            this.btnDetect.Click += new System.EventHandler(this.btnCheck_Click);
            // 
            // groupBox1
            // 
            this.groupBox1.Controls.Add(this.txtResult);
            this.groupBox1.Controls.Add(this.lblResult);
            this.groupBox1.Controls.Add(this.label2);
            this.groupBox1.Controls.Add(this.label1);
            this.groupBox1.Controls.Add(this.pbFaceImage);
            this.groupBox1.Font = new System.Drawing.Font("宋体", 15F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
            this.groupBox1.Location = new System.Drawing.Point(666, 37);
            this.groupBox1.Name = "groupBox1";
            this.groupBox1.Size = new System.Drawing.Size(554, 809);
            this.groupBox1.TabIndex = 2;
            this.groupBox1.TabStop = false;
            this.groupBox1.Text = "检测结果";
            // 
            // label2
            // 
            this.label2.AutoSize = true;
            this.label2.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
            this.label2.Location = new System.Drawing.Point(25, 327);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(130, 24);
            this.label2.TabIndex = 2;
            this.label2.Text = "检测结果：";
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
            this.label1.Location = new System.Drawing.Point(25, 156);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(130, 24);
            this.label1.TabIndex = 1;
            this.label1.Text = "检测图片：";
            // 
            // pbFaceImage
            // 
            this.pbFaceImage.Location = new System.Drawing.Point(161, 41);
            this.pbFaceImage.Name = "pbFaceImage";
            this.pbFaceImage.Size = new System.Drawing.Size(356, 273);
            this.pbFaceImage.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
            this.pbFaceImage.TabIndex = 0;
            this.pbFaceImage.TabStop = false;
            // 
            // lblResult
            // 
            this.lblResult.AutoSize = true;
            this.lblResult.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
            this.lblResult.Location = new System.Drawing.Point(49, 391);
            this.lblResult.Name = "lblResult";
            this.lblResult.Size = new System.Drawing.Size(0, 24);
            this.lblResult.TabIndex = 5;
            // 
            // btnStart
            // 
            this.btnStart.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
            this.btnStart.Location = new System.Drawing.Point(64, 627);
            this.btnStart.Name = "btnStart";
            this.btnStart.Size = new System.Drawing.Size(184, 63);
            this.btnStart.TabIndex = 3;
            this.btnStart.Text = "开始自动检测";
            this.btnStart.UseVisualStyleBackColor = true;
            this.btnStart.Click += new System.EventHandler(this.btnStart_Click);
            // 
            // btnStop
            // 
            this.btnStop.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
            this.btnStop.Location = new System.Drawing.Point(407, 627);
            this.btnStop.Name = "btnStop";
            this.btnStop.Size = new System.Drawing.Size(184, 63);
            this.btnStop.TabIndex = 4;
            this.btnStop.Text = "结束自动检测";
            this.btnStop.UseVisualStyleBackColor = true;
            this.btnStop.Click += new System.EventHandler(this.btnStop_Click);
            // 
            // timeShoot
            // 
            this.timeShoot.Interval = 1000;
            this.timeShoot.Tick += new System.EventHandler(this.timeShoot_Tick);
            // 
            // txtResult
            // 
            this.txtResult.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
            this.txtResult.Location = new System.Drawing.Point(29, 381);
            this.txtResult.Multiline = true;
            this.txtResult.Name = "txtResult";
            this.txtResult.ScrollBars = System.Windows.Forms.ScrollBars.Both;
            this.txtResult.Size = new System.Drawing.Size(488, 396);
            this.txtResult.TabIndex = 6;
            // 
            // 人脸检测
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(9F, 18F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(1273, 885);
            this.Controls.Add(this.btnStop);
            this.Controls.Add(this.btnStart);
            this.Controls.Add(this.groupBox1);
            this.Controls.Add(this.btnDetect);
            this.Controls.Add(this.vispShoot);
            this.Name = "人脸检测";
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
            this.Text = "人脸检测";
            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.人脸检测_FormClosing);
            this.Load += new System.EventHandler(this.人脸检测_Load);
            this.groupBox1.ResumeLayout(false);
            this.groupBox1.PerformLayout();
            ((System.ComponentModel.ISupportInitialize)(this.pbFaceImage)).EndInit();
            this.ResumeLayout(false);

        }

        #endregion

        private AForge.Controls.VideoSourcePlayer vispShoot;
        private System.Windows.Forms.Button btnDetect;
        private System.Windows.Forms.GroupBox groupBox1;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.PictureBox pbFaceImage;
        private System.Windows.Forms.Label label2;
        private System.Windows.Forms.Label lblResult;
        private System.Windows.Forms.Button btnStart;
        private System.Windows.Forms.Button btnStop;
        private System.Windows.Forms.Timer timeShoot;
        private System.Windows.Forms.TextBox txtResult;
    }
}

2. FaceUtil（华为云人脸识别SDK工具类）

using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using AForge.Imaging;

//引入华为云SDK命名空间
using FrsSDK.client;
using FrsSDK.client.param;
using FrsSDK.client.result;

namespace huaweiCloudDemo.utils
{
    /// <summary>
    /// 华为云（https://support.huaweicloud.com/sdkreference-face/face_04_0018.html）
    /// 人脸操作工具类
    /// </summary>
    class FaceUtil
    {
        //华为AK/SK/projectId 可在“我的凭证”界面获取（https://console.huaweicloud.com/iam/?locale=zh-cn#/myCredential）
        //Access Key Id
        private const string ak = "***";
        //Secret Access Key
        private const string sk = "***";
        //项目id 可在
        private const string projectId = "***";
        //图片存储本地地址
        private const string imageLocalUrl = "D:\\resources\\image\\faces";


        /// <summary>
        /// 人脸检测
        /// 具体传入参数，返回参数请参考（https://support.huaweicloud.com/api-face/face_02_0052.html）
        /// </summary>
        /// <param name="image">图片地址（本地图片）</param>
        /// /// <param name="attributes">人脸属性，默认无，多个逗号(,)隔开（0：人脸姿态，1：性别，2：年龄，3：人脸关键点，4：装束（帽子，眼镜）5：笑脸）</param>
        /// <returns>检测结果（JSON格式字符串）</returns>
        public static DetectFaceResult DetectFaceByFile(Bitmap image, string attributes = null)
        {
            AuthInfo authInfo = new AuthInfo("https://face.cn-north-1.myhuaweicloud.com", ak, sk);
            FrsClient frsClient = new FrsClient(authInfo, projectId);
            DetectFaceResult detectFaceResult = frsClient.GetDetectService().DetectFaceByFile(SaveImageToLoacl(image), attributes);
            return detectFaceResult;
        }




        /// <summary>
        /// 图片本地存储
        /// </summary>
        /// <param name="image"></param>
        /// <returns></returns>
        public static string SaveImageToLoacl(Bitmap image)
        {
            //判断图片本地存储文件夹是否存在，不存在则创建
            if (!Directory.Exists(imageLocalUrl))
            {
                Directory.CreateDirectory(imageLocalUrl);
            }
            string dateStr = DateTime.Now.ToString("yyyyMMdd");
            //图片文件按天生成文件夹
            if (!Directory.Exists(imageLocalUrl + "\\" + dateStr))
            {
                Directory.CreateDirectory(imageLocalUrl + "\\" + dateStr);
            }
            string dateTimeStr = DateTime.Now.ToString("yyyyMMddhhmmssfff");
            string imageUrl = imageLocalUrl + "\\" + dateStr + "\\" + dateTimeStr + ".jpeg";
            image.Save(imageUrl, System.Drawing.Imaging.ImageFormat.Jpeg);
            return imageUrl;
        }
    }
}

3. 窗体控件操作代码

using AForge.Video.DirectShow;
using FrsSDK.client.result;
using FrsSDK.client.result.common;
using huaweiCloudDemo.utils;
using System;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace huaweiCloudDemo
{
    public partial class 人脸检测 : Form
    {
        public 人脸检测()
        {
            InitializeComponent();
        }


        private void btnCheck_Click(object sender, EventArgs e)
        {
            //拍照获得图片
            Bitmap img = vispShoot.GetCurrentVideoFrame();
            //展示图片
            this.pbFaceImage.Image = img;
            txtResult.Text = "";
            DetectFaceResult result = FaceUtil.DetectFaceByFile(img,"1,2,5");
            StringBuilder sb = new StringBuilder();
            if (result.faces.Count > 0)
            {
                sb.AppendFormat("人脸数量：{0}\r\n", result.faces.Count);
                for (int i = 0; i < result.faces.Count; i++)
                {
                    DetectFace df = result.faces[i];
                    if (df.attributes != null)
                    {
                        sb.AppendFormat("-----第{0}张脸-----\r\n", i + 1);
                        sb.AppendFormat("年龄：{0}\r\n", df.attributes.age);
                        string gender = "";
                        if (df.attributes.gender == "male")
                        {
                            gender = "男";
                        }
                        else if (df.attributes.gender == "female")
                        {
                            gender = "女";
                        }
                        else
                        {

                        }
                        sb.AppendFormat("性别：{0}\r\n", gender);
                        sb.AppendFormat("笑脸：{0}\r\n", df.attributes.smile);
                    }

                    txtResult.Text = sb.ToString();
                }
            }
            else
            {
                txtResult.Text = "未检测到人脸\r\n";
            } 
        }

        /// <summary>
        /// 窗体加载
        /// 初始化打开摄像头
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void 人脸检测_Load(object sender, EventArgs e)
        {
            initVideo();
        }

        private FilterInfoCollection videoDevices;
        private VideoCaptureDevice videoDevice;
        private VideoCapabilities[] videoCapabilities;
        /// <summary>
        /// 初始化摄像头
        /// </summary>
        public void initVideo()
        {
            videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
            if (videoDevices.Count != 0)
            {
                //foreach (FilterInfo device in videoDevices)
                //{
                //    MessageBox.Show(device.Name);
                //}
                //默认取识别到的第一个摄像头
                //如有需要可选择摄像头加载
                videoDevice = new VideoCaptureDevice(videoDevices[0].MonikerString);
                videoCapabilities = videoDevice.VideoCapabilities;
                videoDevice.VideoResolution = videoCapabilities[0];
                //加载到视频控件
                vispShoot.VideoSource = videoDevice;
                vispShoot.Start();
            }
            else
            {
                MessageBox.Show("没有找到摄像头");
            }
        }

        /// <summary>
        /// 关闭摄像头
        /// </summary>
        private void DisConnect()
        {
            if (vispShoot.VideoSource != null)
            {
                vispShoot.SignalToStop();
                vispShoot.WaitForStop();
                vispShoot.VideoSource = null;
            }
        }

        /// <summary>
        /// 窗体关闭监听事件
        /// 当前窗体关闭时执行关闭摄像头方法，不然摄像头会一直开着
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void 人脸检测_FormClosing(object sender, FormClosingEventArgs e)
        {
            DisConnect();
        }

        public int stootCount = 1;

        /// <summary>
        /// 定时器 定时执行事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void timeShoot_Tick(object sender, EventArgs e)
        {
            //拍照获得图片
            Bitmap img = vispShoot.GetCurrentVideoFrame();
            //展示图片
            this.pbFaceImage.Image = img;
           
            DetectFaceResult result = FaceUtil.DetectFaceByFile(img, "1,2,5");
            StringBuilder sb = new StringBuilder();
            sb.AppendFormat("------------第（{0}）次自动检测-------------\r\n", stootCount);
            if (result.faces.Count > 0)
            {
                sb.AppendFormat("人脸数量：{0}\r\n", result.faces.Count);
                for (int i = 0; i < result.faces.Count; i++)
                {
                    DetectFace df = result.faces[i];
                    if (df.attributes != null)
                    {
                        sb.AppendFormat("-----第{0}张脸-----\r\n", i + 1);
                        sb.AppendFormat("年龄：{0}\r\n", df.attributes.age);
                        string gender = "";
                        if (df.attributes.gender == "male")
                        {
                            gender = "男";
                        }
                        else if (df.attributes.gender == "female")
                        {
                            gender = "女";
                        }
                        else
                        {
                            gender = "无法判断";
                        }
                        sb.AppendFormat("性别：{0}\r\n", gender);
                        sb.AppendFormat("笑脸：{0}\r\n", df.attributes.smile);
                    }

                    
                }
            }
            else
            {
                sb.AppendFormat("未检测到人脸\r\n");
            }
            txtResult.Text += sb.ToString();
            stootCount++;
        }

        /// <summary>
        /// 开始自动检测按钮点击
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnStart_Click(object sender, EventArgs e)
        {
            txtResult.Text = "";
            timeShoot.Start();
        }

        /// <summary>
        /// 关闭自动检测按钮点击
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnStop_Click(object sender, EventArgs e)
        {
            timeShoot.Stop();
        }
    }
}

5. 运行效果（AI还不够聪明，年龄检测结果大了太多o(╥﹏╥)o）

运行效果o(╥﹏╥)o

C# 对接第三方平台AI功能实现人脸识别

准备工作

引入华为云人脸识别模块SDK

在项目中引入 Aforge

在项目中引入 Newtonsoft.Json

前期准备工作完成，开工

1. 窗体设计

2. FaceUtil（华为云人脸识别SDK工具类）

3. 窗体控件操作代码

5. 运行效果（AI还不够聪明，年龄检测结果大了太多o(╥﹏╥)o）

6. 完整demo下载地址

猜你喜欢

热点阅读

C# 对接第三方平台AI功能实现人脸识别

准备工作

引入华为云人脸识别模块SDK

在项目中引入 Aforge

在项目中引入 Newtonsoft.Json

前期准备工作完成，开工

1. 窗体设计

2. FaceUtil（华为云人脸识别SDK工具类 ）

3. 窗体控件操作代码

5. 运行效果（AI还不够聪明，年龄检测结果大了太多o(╥﹏╥)o）

6. 完整demo下载地址

猜你喜欢

热点阅读

2. FaceUtil（华为云人脸识别SDK工具类）