C# 遮罩贴图 示例源码

【实例简介】

【实例截图】

【核心代码】

#region [ References ]


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Imaging;
using System.Text;
using System.Windows.Forms;

#endregion

namespace SampleProject
{
public partial class MainForm : Form
{

#region [ Fields ]

private string FileName;
private Bitmap srcBitmap;
private int ZoomFactor = 1;
private int ZoomScale = 1;

#endregion

#region [ Constructor ]

public MainForm()
{
InitializeComponent();
}

#endregion

#region [ Functions ]

private void ZoomSrcImage()
{
SrcPic.SizeMode = PictureBoxSizeMode.StretchImage;
SrcPic.Width = (SrcPic.Image.Width * ZoomFactor);
SrcPic.Height = (SrcPic.Image.Height * ZoomFactor);
}

private void ZoomDstImage()
{
DstPic.SizeMode = PictureBoxSizeMode.StretchImage;
DstPic.Width = (DstPic.Image.Width * ZoomScale);
DstPic.Height = (DstPic.Image.Height * ZoomScale);
}

#endregion

#region [ Events ]

/// <summary>
/// This event used to show Input Image.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
/// 
private void SelectInputFile(object sender, EventArgs e)
{
OpenFileDialog selectImage = new OpenFileDialog();
selectImage.Filter = "JPEG files (*.jpg)|*.jpg";
selectImage.Title = "Save Output File";
if (selectImage.ShowDialog() == DialogResult.OK)
{
FileName = selectImage.FileName;

try
{
srcBitmap = new Bitmap(FileName);
SrcPic.Image = (Bitmap) srcBitmap;

ImageDilation.Enabled = true;
Masking.Enabled = true;
}
catch
{
MessageBox.Show("Can not open Image.","Wrong Format Image", MessageBoxButtons.OK, MessageBoxIcon.Information);  
}
}
}

/// <summary>
/// This event used to save output Image.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
/// 
private void SaveFile(object sender, EventArgs e)
{
SaveFileDialog saveFile = new SaveFileDialog();
saveFile.Filter = "JPEG files (*.jpg)|*.jpg";
saveFile.Title = "Save Output File";
if (saveFile.ShowDialog() == DialogResult.OK)
{
try
{
DstPic.Image.Save(saveFile.FileName, ImageFormat.Jpeg); 
}
catch
{
MessageBox.Show("Can not save a Image.", "Wrong Format Image", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}

/// <summary>
/// This event used to call dilation algorithm.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
/// 
private void DilateImage(object sender, EventArgs e)
{
ImageProcessingLib process = new ImageProcessingLib();

try
{
DstPic.Image = (Image)process.Dilate((Bitmap)srcBitmap.Clone()).Clone() ;

SaveImage.Enabled = true;  
}
catch
{
MessageBox.Show("Can not Dilate a Image.", "Wrong Format Image", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
finally
{
process.Dispose();
}
}

/// <summary>
/// This event used to call masking algorithm.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
/// 
private void MaskImage(object sender, EventArgs e)
{
OpenFileDialog maskImage = new OpenFileDialog();

if (maskImage.ShowDialog() == DialogResult.OK)
{
ImageProcessingLib process = new ImageProcessingLib();
Bitmap _temp = new Bitmap(maskImage.FileName);
string Message = "";

try
{
DstPic.Image = (Image)process.MaskImagePtr((Bitmap)srcBitmap.Clone(), _temp,out Message).Clone();

if (Message != "")
{
MessageBox.Show("Can not Mask a Image.", "Wrong Format Image", MessageBoxButtons.OK, MessageBoxIcon.Information);
return; 
}

SaveImage.Enabled = true;    
}
catch
{
MessageBox.Show("Can not Mask a Image.", "Wrong Format Image", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
finally
{
process.Dispose();
_temp.Dispose(); 
}
}
}

/// <summary>
/// This event used to zoom Src Image.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
/// 
private void ZoomIn_Click(object sender, EventArgs e)
{
if (ZoomFactor <= 3)
{
ZoomFactor ;
ZoomSrcImage();
}
}

/// <summary>
/// This event used to zoom Src Image.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
/// 
private void ZoomOut_Click(object sender, EventArgs e)
{
if (ZoomFactor > 1)
{
ZoomFactor--;
ZoomSrcImage();
}
}

/// <summary>
/// This event used to resize panel controls.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
/// 
private void MainForm_Resize(object sender, EventArgs e)
{
SrcPanel.Width = (int)(ClientRectangle.Width / 2) - 2;
DstPanel.Width = (int)(ClientRectangle.Width / 2) - 2;
DstPanel.Left = (int)(ClientRectangle.Width / 2);
SrcPanel.Height = (int)(ClientRectangle.Height) - 30;
DstPanel.Height = (int)(ClientRectangle.Height) - 30;
}

/// <summary>
/// This event used to Close application.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
/// 
private void CloseApplication(object sender, EventArgs e)
{
if(srcBitmap !=null)
srcBitmap.Dispose();  

this.Dispose(true);  
}

/// <summary>
/// This event used to zoom destination Image.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
/// 
private void ZoomInDst_Click(object sender, EventArgs e)
{
if (ZoomScale <= 3)
{
ZoomScale ;
ZoomDstImage();
}
}

/// <summary>
/// This event used to zoom destination Image.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
/// 
private void ZoomOutDst_Click(object sender, EventArgs e)
{
if (ZoomScale > 1)
{
ZoomScale--;
ZoomDstImage();
}
}

#endregion

}
}