Emgu CV（OpenCV for C#）学习笔记(3）

第三个例子：捕获摄像头

       利用Emgu.CV.Capture可以捕获摄像头，得到的的画面既可以在ImageViewer中以新窗口的方式显示，也可以在imageBox中来显示。示例很简单，我按照自己的理解做了注释。直接贴代码如下：

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using Emgu.CV;

using Emgu.CV.UI;

using Emgu.CV.Structure;

namespace CameraCapture

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)

        {

            //viewer显示

            ImageViewer viewer = new ImageViewer(); //定义用于显示图像的imageviewer

            viewer.Text = "摄像头窗口";

            Capture capture = new Capture(); //创建获得图像的captue

            Application.Idle += new EventHandler(delegate(object sender1, EventArgs e1)

            {

                viewer.Image = capture.QueryFrame(); //画面帧赋于ImageViewer

            });

            viewer.Show(); //显示

        }

        private void button2_Click(object sender, EventArgs e)

        {

            //显示在控件上

            Capture capture = new Capture();

            Application.Idle += new EventHandler(delegate(object sender1, EventArgs e1)

            { 

                imageBox1.Image = capture.QueryFrame();

            });

        }

    }

}

       运行结果如下图所示：