/************************************************************************
?*?數字圖像處理--VC#.NET編程與實驗?第8章?圖像分割
?*?ImageSegmentation.Form1.cs
?*?Version?1.0?2010.01.29
?*?Author??Xie-Hua?Sun?
?************************************************************************/
using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Text;
using?System.Windows.Forms;

namespace?ImageSegmenation
{
????public?partial?class?Form1?:?Form
????{
????????Bitmap?curBitmap?=?null;
????????int?iw?ih;

????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????????label1.Text?=?““;
????????????label2.Text?=?““;
????????}

????????//打開????????
????????private?void?menuItem2_Click（object?sender?EventArgs?e）
????????{
????????????OpenFileDialog?open?=?new?OpenFileDialog（）;
????????????open.Filter?=?“圖像文件（*.bmp;*.jpg;*gif;*png;*.tif;*.wmf）|“
????????????????????????+?“*.bmp;*jpg;*gif;*png;*.tif;*.wmf“;
????????????if?（open.ShowDialog（）?==?DialogResult.OK）
????????????{
????????????????try
????????????????{
????????????????????curBitmap?=?（Bitmap）Image.FromFile（open.FileName）;
????????????????}
????????????????catch?（Exception?exp）?{?MessageBox.Show（exp.Message）;?}

????????????????pictureBox1.Refresh（）;
????????????????pictureBox1.Image?=?curBitmap;
????????????????label1.Text?=?“原圖“;
????????????????iw?=?curBitmap.Width;
????????????????ih?=?curBitmap.Height;
????????????}????????????
????????}

????????//保存
????????private?void?menuItem3_Click（object?sender?EventArgs?e）
????????{
????????????string?str;

????????????SaveFileDialog?saveFileDialog1?=?new?SaveFileDialog（）;
????????????saveFileDialog1.Filter?=?“圖像文件（*.BMP）|*.BMP|All?File（*.*）|*.*“;
????????????saveFileDialog1.ShowDialog（）;
????????????str?=?saveFileDialog1.FileName;
????????????pictureBox2.Image.Save（str）;
????????}

????????//退出
????????private?void?menuItem4_Click（object?sender?EventArgs?e）
????????{
????????????this.Close（）;
????????}
????????????????
????????//8.1?邊緣檢測===========================================================
????????
????????//Kirsch算子
????????private?void?menuItem10_Click（object?sender?EventArgs?e）
????????{
????????????if?（curBitmap?!=?null）
????????????{
????????????????this.Text?=?“第8章?圖像分割?邊緣檢測?Kirsch算子?作者?孫燮華“;
????????????????Bitmap?bm?=?new?Bitmap（pictureBox1.Image）;
????????????????????????????????
????????????????//1:?Kirsch邊緣檢測
????????????????bm?=?detect（bm?iw?ih?1?500）;

????????????????pictureBox2.Refresh（）;
????????????????pictureBox2.Image?=?bm;
????????????????label2.Text?=?“邊緣檢測結果“;
????????????}
????????}

????????/*-------------------------------------------------------------------------
?????????*?pix????--待檢測圖像數組
?????????*?iw?ih?--待檢測圖像寬高
?????????*?num????--算子代號.1:Kirsch算子;2:Laplace算子;3:Prewitt算子;5:Sobel算子
?????????*?thresh?--邊緣檢測閾值T
?????????*?flag???--銳化與邊緣檢測標志?false:銳化;?tru