圖形分割成塊的C＃

我的代碼：圖形分割成塊的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 TouchlessLib; 

namespace WebCam2 
{ 
    public partial class Form1 : Form 
    { 
     TouchlessMgr ngr = new TouchlessMgr(); 
     Bitmap _overlay; 
     public Form1() 
     { 
      InitializeComponent(); 
      foreach (Camera c in ngr.Cameras) 
      { 
       listBox1.Items.Add(c); 
       listBox1.SelectedValueChanged += new EventHandler(listBox1_SelectedValueChanged); 

      } 
     } 

     void listBox1_SelectedValueChanged(object sender, EventArgs e) 
     { 
      ngr.CurrentCamera = (Camera) listBox1.SelectedItem; 
      ngr.CurrentCamera.OnImageCaptured += c_OnImageCaptured; 
     } 

     void c_OnImageCaptured(object sender, CameraEventArgs e) 
     { 
      pictureBox1.Image = ngr.CurrentCamera.GetCurrentImage(); 
     } 

     private void pictureBox1_Click(object sender, EventArgs e) 
     { 


     } 

     public EventHandler<CameraEventArgs> cam_OnImageCaptured { get; set; } 

     private void pictureBox1_MouseDown(object sender, MouseEventArgs e) 
     { 
      List <Graphics> list = new List <Graphics>(); 
      ngr.RefreshCameraList(); 
      Graphics g = Graphics.FromImage(pictureBox1.Image); 
      Brush redBrush = new SolidBrush(Color.Red); 
      Pen pen = new Pen(redBrush,3); 
      for (int i = 0; i < pictureBox1.Width; i = (pictureBox1.Width/3)+i) 
      { 
       for (int y = 0; y < pictureBox1.Height; y = (pictureBox1.Height/3) + y) 
       { 
        g.DrawRectangle(pen, i, y, pictureBox1.Width/3, pictureBox1.Height/3); 
       } 
      } 
      g.Dispose(); 


     } 

    } 
}

此代碼的工作只是有時不是每次，我不知道什麼是錯的代碼。我也想分裂成一個3x3矩陣的圖像，但我不知道如何。

請幫忙！

輸出（第一時間沒有框架，第二次右）：

ImageLink的：

http://www.imagebanana.com/view/4j58i05z/Unbenannt2.png

來源

2010-11-04 user422039

g.Dispose

來源

2010-11-04 18:04:18 Kell

你是我的英雄^^，謝謝 – user422039 2010-11-04 18:07:58

你知道如何將位圖分成幾塊嗎？ – user422039 2010-11-04 18:08:19

爲演示文稿的目的，我已經添加一個按鈕到一個窗體和第二個picturebox，整數從1-9週期。顯然你不需要這樣做。這裏是代碼： – Kell 2010-11-05 09:56:49

後添加pictureBox1.Invalidate();爲demonstartino目的，我添加了一個按鈕轉換爲表單和第二個圖片框，並使用從1-9開始的整數。顯然你不需要這樣做。這裏是代碼：

 private void button1_Click(object sender, EventArgs e) 
    { 
     mLastRect++; 
     if (mLastRect > 9) 
      mLastRect = 0; 
     Bitmap part = new Bitmap(pictureBox1.Image.Width/3, pictureBox1.Image.Height/3); 
     Graphics g = Graphics.FromImage(part); 
     Rectangle partRect = new Rectangle(0, 0, part.Width, part.Height); 
     Rectangle sourceRect = GetRect(mLastRect); 
     g.DrawImage(pictureBox1.Image, partRect, sourceRect, GraphicsUnit.Pixel); 
     pictureBox2.Image = part; 
    } 

    private Rectangle GetRect(int rectNo) 
    { 
     int rectLeft = (rectNo % 3) * (pictureBox1.Image.Width/3); 
     int rectTop = (rectNo/3) * (pictureBox1.Image.Height/3); 
     return new Rectangle(rectLeft, rectTop, pictureBox1.Image.Width/3, pictureBox1.Image.Height/3); 
    }

來源

2010-11-05 09:57:50 Kell

圖形分割成塊的C＃

回答

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