EMGU 第一个程序 读取图片

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.CvEnum;using Emgu.CV.Structure;using Emgu.CV.UI;namespace test{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void Form1_Load(object sender, EventArgs e)        {                    }        private void button1_Click(object sender, EventArgs e)        {            var dialog = new OpenFileDialog();            dialog.Filter = "图片(*.jpg/*.png/*.gif/*.bmp)|*.jpg;*.png;*.gif;*.bmp";            if (dialog.ShowDialog() == DialogResult.OK)            {                Mat img = CvInvoke.Imread(dialog.FileName);//, LoadImageType.Unchanged                pictureBox1.Image = img.Bitmap;            }        }    }}