Emgu Convert Colour image to Gray,Binary Image

พอดีมีคนถามหาโค๊ด ซึ่งเป็นโค๊ดที่ผมเริ่มศึกษา Emgu ใหม่ๆ (ตอนนี้ ก็ยังใหม่อยู่เหมือนเดิม ;P ) ก็เลยเอามาอัพไว้ที่บล๊อกสักหน่อย

ไม่มีอะไรมากครับ เป็นการโหลด Image เข้ามา แล้วทำการแปลงเป็นภาพ Gray , Binary Image เฉยๆ

ไลบรารี่ที่ดึงเข้ามาใช้ในโปรเจค

อันนี้เป็นโค๊ด

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 System.IO;
using Emgu.CV;
using Emgu.CV.Structure;

namespace CovertImage
{
    public partial class Form1 : Form
    {
        string imageFileName;
        Image<Bgr, Byte> imageCoverted;
        public Form1()
        {
            InitializeComponent();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            string extension;
            OpenFileDialog openFile = new OpenFileDialog();
            openFile.Filter = "Image Files(*.BMP;*.JPG;*.GIF)|*.BMP;*.JPG;*.GIF|All files (*.*)|*.*";
            openFile.FilterIndex = 1;
            openFile.RestoreDirectory = true;
            if (openFile.ShowDialog() == DialogResult.OK)
            {
                extension = Path.GetExtension(openFile.FileName);
                if (extension == ".jpg" | extension == ".gif" | extension == ".bmp")
                {
                    imageFileName = openFile.FileName;
                    Image<Bgr, byte> img = new Image<Bgr, byte>(openFile.FileName);
                    imageCoverted = new Image<Bgr, Byte>(openFile.FileName);
                    pictureBox1.Image = img.ToBitmap(pictureBox1.Width, pictureBox1.Height);
                    pictureBox2.Image = null;
                }
                else
                {
                    pictureBox1.Image = null;
                    pictureBox2.Image = null;
                    MessageBox.Show("File does not supported");
                }

            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            processImage(imageCoverted, 0);
        }

        private void button4_Click(object sender, EventArgs e)
        {
            processImage(imageCoverted, 1);
        }

        private void processImage(Image<Bgr,byte> img,int Mode)
        {
            switch (Mode)
            {
                case 0:
                    label2.Text = "Gray";
                    pictureBox2.Image = img.Convert<Gray, byte>().ToBitmap(pictureBox2.Width, pictureBox2.Height);
                    break;
                case 1:
                    label2.Text = "Binary";
                    pictureBox2.Image = img.Convert<Gray, Byte>().ThresholdBinary(new Gray(127), new Gray(255)).ToBitmap(pictureBox2.Width, pictureBox2.Height);
                    break;
            }

        }

        private void toolStripStatusLabel1_Click(object sender, EventArgs e)
        {
            System.Diagnostics.Process.Start("http://vs-visual-studio.blogspot.com/");
        }
    }
}

ดาวน์โหลดซอร์สโค๊ดและโปรเจค https://dl.dropboxusercontent.com/u/65353188/CovertImage.zip