LeadTools创建“图像去噪”应用程序的具体步骤
的有关信息介绍如下：
LeadTools 是 .NET，Win API，WinRT，Linux，iOS，OS X，Android & HTML5平台下领先世界的图像处理开发工具包，它在去噪方面也提供了多种类，具有非常强大的功能。
打开Visual Studio .NET。点击 文件->新建->项目…。打开新建项目对话框后，在模板中选择“Visual C#”或“Visual Basic”，随后选择“Windows窗体应用程序”。在名称栏中输入项目名称“RemoveNoise”，并使用“浏览”按钮选择您工程的存娃八储路径，点击“确定”。
在“解决方案资源管理器”中，右击“引用”，选择“添加引用”。根据当前工程的 Framework 版本和生成目标平台，选择添加相应的LeadTools控件，例如工程中的版本为 Framework 4.0、生成目标平台是 x86，则浏览选择Leadtools For .NET文件夹”
Leadtools.dll
Leadtools.Codecs.dll
Leadtools.Codecs.Cmp.dll
Leadtools.Codecs.Bmp.dll
Leadtools.Codecs.Tif.dll
Leadtools.ImageProcessing.Color.dll
Leadtools.ImageProcessing.Core.dll
Leadtools.ImageProcessing.Effects.dll
Leadtools.WinForms.dll
从工具箱（视图->工具箱），添加7个RadioButton控件（将RadioButton的Text属性依照下表修改），两个Panel控件（Name分别修改为panelBefore和panelAfter）。如下图：
切换至Form1的代码视图（右击Form1，选择查看代码），将下面几行代码添加到文件开始处摸芬斤：
1: using Leadtools;
2: using Leadtools.Codecs;
3: using Leadtools.Codecs.Tif;
4: using Leadtools.ImageProcessing;
5: using Leadtools.ImageProcessing.Core;
6: using Leadtools.ImageProcessing.Effects;
7: using Leadtools.ImageProcessing.Color;
8: using Leadtools.WinForms;
将以下变量添加至Form1类：
1: private RasterImageViewer beforePic;
2: private RasterImageViewer afterPic;
3: private RasterCodecs codecs;
4: private RasterImage temp;
添加Form1 Load事件句柄，在其中添加以下代码：
1: beforePic = new RasterImageViewer();
2: beforePic.BackColor = Color.DarkCyan;
3: beforePic.Dock = DockStyle.Fill;
4: beforePic.InteractiveMode = RasterViewerInteractiveMode.Pan;
5: beforePic.HorizontalAlignMode = RasterPaintAlignMode.Center;
6: beforePic.VerticalAlignMode = RasterPaintAlignMode.Center;
7: beforePic.AutoResetScaleFactor = false;
8: panelBefore.Controls.Add(beforePic);
9: beforePic.BringToFront();
10:
11: afterPic = new RasterImageViewer();
截晃12: afterPic.BackColor = beforePic.BackColor;
13: afterPic.Dock = beforePic.Dock;
14: afterPic.InteractiveMode = beforePic.InteractiveMode;
15: afterPic.HorizontalAlignMode = beforePic.HorizontalAlignMode;
16: afterPic.VerticalAlignMode = beforePic.VerticalAlignMode;
17: afterPic.AutoResetScaleFactor = beforePic.AutoResetScaleFactor;
18: panelAfter.Controls.Add(afterPic);
19: afterPic.BringToFront();
20:
21: codecs = new RasterCodecs();
22: codecs.ThrowExceptionsOnInvalidImages = true;
双击radioButton1，在radioButton1 CheckedChanged事件句柄中添加以下代码：
（本段代码为DespeckleCommand类的使用）
1: beforePic.Image = codecs.Load(Path.Combine(Application.StartupPath, @"..\..\Pic\clean.tif"));
2:
3: temp = beforePic.Image.Clone();
4:
5: DespeckleCommand command = new DespeckleCommand();
6:
7: command.Run(temp);
8: afterPic.Image = temp;
双击radioButton2，在radioButton2 CheckedChanged事件句柄中添加以下代码：
（本段代码为MedianCommand类的使用）
1: beforePic.Image = codecs.Load(Path.Combine(Application.StartupPath, @"..\..\Pic\Master.jpg"));
2:
3: temp = beforePic.Image.Clone();
4:
5: MedianCommand command = new MedianCommand();
6:
7: command.Dimension = 9;
8: command.Run(temp);
9: afterPic.Image = temp;
双击radioButton3，在radioButton3 CheckedChanged事件句柄中添加以下代码：
（本段代码为AverageCommand类的使用）
1: beforePic.Image = codecs.Load(Path.Combine(Application.StartupPath, @"..\..\Pic\Master.jpg"));
2:
3: temp = beforePic.Image.Clone();
4:
5: AverageCommand command = new AverageCommand();
6:
7: command.Dimension = 3;
8: command.Run(temp);
9: afterPic.Image = temp;
10: codecs.Save(temp, Path.Combine(Application.StartupPath, @"..\..\Pic\AverageCommandResult.jpg"), RasterImageFormat.Jpeg, 24);
双击radioButton4，在radioButton4 CheckedChanged事件句柄中添加以下代码：
（本段代码为AutoBinaryCommand类的使用）
1: beforePic.Image = codecs.Load(Path.Combine(Application.StartupPath, @"..\..\Pic\Master.jpg"));
2:
3: temp = beforePic.Image.Clone();
4:
5: AutoBinaryCommand command = new AutoBinaryCommand();
6:
7: command.Run(temp);
8: afterPic.Image = temp;
9: codecs.Save(temp, Path.Combine(Application.StartupPath, @"..\..\Pic\AutoBinaryCommand.jpg"), RasterImageFormat.Jpeg, 24);
双击radioButton5，在radioButton5 CheckedChanged事件句柄中添加以下代码：
（本段代码为SmoothEdgesCommand类的使用）
1: beforePic.Image = codecs.Load(Path.Combine(Application.StartupPath, @"..\..\Pic\Master.jpg"));
2:
3: temp = beforePic.Image.Clone();
4:
5: SmoothEdgesCommand command = new SmoothEdgesCommand();
6: command.Amount = 50;
7: command.Threshold = 0;
8:
9: command.Run(temp);
10: afterPic.Image = temp;
双击radioButton6，在radioButton6 CheckedChanged事件句柄中添加以下代码：
（本段代码为DiscreteFourierTransformCommand类的使用）
1: beforePic.Image = codecs.Load(Path.Combine(Application.StartupPath, @"..\..\Pic\Master.jpg"));
2:
3: temp = beforePic.Image.Clone();
4:
5: FourierTransformInformation FTArray = new FourierTransformInformation(temp);
6: LeadRect rcRange = new LeadRect(0, 0, temp.Width - 1, temp.Height - 1);
7: DiscreteFourierTransformCommand command = new DiscreteFourierTransformCommand();
8:
9: command.FourierTransformInformation = FTArray;
10: command.Range = rcRange;
11: command.Flags = DiscreteFourierTransformCommandFlags.DiscreteFourierTransform |
12: DiscreteFourierTransformCommandFlags.Gray |
13: DiscreteFourierTransformCommandFlags.Range |
14: DiscreteFourierTransformCommandFlags.InsideX |
15: DiscreteFourierTransformCommandFlags.InsideY;
16:
17:
18: FourierTransformDisplayCommand disCommand = new FourierTransformDisplayCommand();
19: disCommand.Flags = FourierTransformDisplayCommandFlags.Log | FourierTransformDisplayCommandFlags.Magnitude;
20: disCommand.FourierTransformInformation = command.FourierTransformInformation;
21:
22: disCommand.Run(temp);
23:
24: afterPic.Image = temp;
双击radioButton7，在radioButton7 CheckedChanged事件句柄中添加以下代码：
（本段代码为FastFourierTransformCommand类的使用）
1: beforePic.Image = codecs.Load(Path.Combine(Application.StartupPath, @"..\..\Pic\Master.jpg"));
2:
3: temp = beforePic.Image.Clone();
4:
5: SizeCommand sizecommand = new SizeCommand(256, 256, Leadtools.RasterSizeFlags.Bicubic);
6:
7: sizecommand.Run(temp);
8: FourierTransformInformation FTArray = new FourierTransformInformation(temp);
9:
10: FastFourierTransformCommand command = new FastFourierTransformCommand(FTArray, FastFourierTransformCommandFlags.FastFourierTransform | FastFourierTransformCommandFlags.Gray);
11: command.Run(temp);
12: LeadRect rcRect = new LeadRect(0, 0, temp.Width / 2, temp.Height / 2);
13: FrequencyFilterCommand FreqCommand = new FrequencyFilterCommand(FTArray, rcRect, FrequencyFilterCommandFlags.InsideX | FrequencyFilterCommandFlags.OutsideY);
14:
15: FastFourierTransformCommand InvCommand = new FastFourierTransformCommand(FTArray, FastFourierTransformCommandFlags.InverseFastFourierTransform | FastFourierTransformCommandFlags.Gray | FastFourierTransformCommandFlags.Scale | FastFourierTransformCommandFlags.Both);
16: InvCommand.Run(temp);
17:
18: afterPic.Image = temp;
编译运行程序。本文DEMO使用了DespeckleCommand、MedianCommand、AverageCommand、AutoBinaryCommand、SmoothEdgesCommand类对图像进行去噪处理，使用了离散傅里叶变换和快速傅里叶变换对图像进行了处理。结果如下图：
