ช่วยหน่อยค่ะ เขียนโปรแกรม image processing โดยใช้ภาษา c#

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 AForge.Video;
using AForge.Video.DirectShow;
using AForge.Imaging;
using AForge.Imaging.Filters;

namespace cc
{
    public partial class Form1 : Form
    {
        private FilterInfoCollection VideoCaptureDevices;
        private VideoCaptureDevice FinalVideoSource;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            VideoCaptureDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
            foreach (FilterInfo VideoCaptureDevice in VideoCaptureDevices)
            {
                comboBox1.Items.Add(VideoCaptureDevice.Name);
            }
            comboBox1.SelectedIndex = 0;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            FinalVideoSource = new VideoCaptureDevice(VideoCaptureDevices[comboBox1.SelectedIndex].MonikerString);
            FinalVideoSource.NewFrame += new NewFrameEventHandler(FinalVideoSource_NewFrame);
            FinalVideoSource.Start();
        }

        void FinalVideoSource_NewFrame(object sender, NewFrameEventArgs eventArgs)
        {
            Bitmap image = (Bitmap)eventArgs.Frame.Clone();
            pictureBox1.Image = image;
        }

        private void Form1_FormClosed(object sender, FormClosedEventArgs e)
        {
            if (FinalVideoSource.IsRunning)
            {
                FinalVideoSource.Stop();
            }
        }
    }
}