LeadTools创建“调整亮度和对比度”程序步骤
1、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”。在名称栏闲海离中输入项目名称“ChangeBrightnessAndContrast”，并使用“浏览”按钮选择您工程的存储路径，点击“确定”。
2、在“解决方案资源管理器”中，右击“引用王秤”，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_INSTALLDIR>\Bin\DotNet4\Win32”,选择以下的DLL“：
Leadtools.dll
Leadtools.Codecs.dll
Leadtools.Codecs.Cmp.dll
Leadtools.ImageProcessing.Color.dll
Leadtools.WinForms.dll
3、从工具箱（视图->工具箱），添加8个讨畜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：
4、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：
1: using Leadtools;
2: using Leadtools.Codecs;
3: using Leadtools.WinForms;
4: using Leadtools.ImageProcessing.Color;
5、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;
6、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();
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;
23: beforePic.Image = codecs.Load(Path.Combine(Application.StartupPath, @"..\..\Pic\Image.jpg"));
7、双击radioButton1，在radioButton1 CheckedChanged事件句柄中添加以下代码：
（本段代码为ChangeIntensityCommand类的使用）
1: temp = beforePic.Image.Clone();
2: ChangeIntensityCommand command = new ChangeIntensityCommand();
3: command.Brightness = 250;
4: command.Run(temp);
5: codecs.Save(temp, Path.Combine(Application.StartupPath, @"..\..\Pic\ChangeIntensityCommandResult.jpg"), RasterImageFormat.Jpeg, 24);
6: afterPic.Image = temp;
8、双击radioButton2，在radioButton2 CheckedChanged事件句柄中添加以下代码：
（本段代码为ChangeContrastCommand类的使用）
1: temp = beforePic.Image.Clone();
2: ChangeContrastCommand command = new ChangeContrastCommand();
3:
4: command.Contrast = 250;
5: command.Run(temp);
6: afterPic.Image = temp;
9、双击radioButton3，在radioButton3 CheckedChanged事件句柄中添加以下代码：
（本段代码为GammaCorrectCommand类的使用）
1: temp = beforePic.Image.Clone();
2: GammaCorrectCommand command = new GammaCorrectCommand();
3:
4: command.Gamma = 250;
5: command.Run(temp);
6: afterPic.Image = temp;
10、双击radioButton4，在radioButton4 CheckedChanged事件句柄中添加以下代码：
（本段代码为MultiplyCommand类的使用）
1: temp = beforePic.Image.Clone();
2: MultiplyCommand command = new MultiplyCommand();
3: command.Factor = 151;
4:
5: command.Run(temp);
6: afterPic.Image = temp;
11、 双击radioButton5，在radioButton5 CheckedChanged事件句柄中添加以下代码：
（本段代码为ColorIntensityBalanceCommand类的使用）
1: temp = beforePic.Image.Clone();
2: ColorIntensityBalanceCommand command = new ColorIntensityBalanceCommand();
3: ColorIntensityBalanceCommandData Shadows = new ColorIntensityBalanceCommandData();
4: ColorIntensityBalanceCommandData MidTone = new ColorIntensityBalanceCommandData();
5: ColorIntensityBalanceCommandData HighLight = new ColorIntensityBalanceCommandData();
6:
7: Shadows.Red = 60;
8: Shadows.Blue = 0;
9: Shadows.Green = 0;
10:
11: MidTone.Red = 40;
12: MidTone.Blue = 0;
13: MidTone.Green = 0;
14:
15: HighLight.Red = 70;
16: HighLight.Blue = 0;
17: HighLight.Green = 0;
18:
19: command.Shadows = Shadows;
20: command.MidTone = MidTone;
21: command.HighLight = HighLight;
22: command.Luminance = false;
23:
24: command.Run(temp);
25: afterPic.Image = temp;
12、双击radioButton6，在radioButton6 CheckedChanged事件句柄中添加以下代码：
（本段代码为ContrastBrightnessIntensityCommand类的使用）
1: temp = beforePic.Image.Clone();
2: ContrastBrightnessIntensityCommand command = new ContrastBrightnessIntensityCommand();
3: command.Contrast = -146;
4: command.Brightness = 358;
5: command.Intensity = 240;
6: command.Run(temp);
7: afterPic.Image = temp;
13、双击radioButton7，在radioButton7 CheckedChanged事件句柄中添加以下代码：
（本段代码为AddWeightedCommand类的使用）
1: temp = beforePic.Image.Clone();
2: AddWeightedCommand command = new AddWeightedCommand();
3: command.Type = AddWeightedCommandType.Average;
4: command.Factor = new int[5];
5: command.Factor[0] = 100;
6: command.Factor[1] = 100;
7: command.Factor[2] = 100;
8: command.Factor[3] = 100;
9: command.Run(temp);
10: afterPic.Image = temp;
14、双击radioButton8，在radioButton8 CheckedChanged事件句柄中添加以下代码：
（本段代码为ChangeHueSaturationIntensityCommand类的使用）
1: temp = beforePic.Image.Clone();
2: ChangeHueSaturationIntensityCommand command = new ChangeHueSaturationIntensityCommand();
3: ChangeHueSaturationIntensityCommandData[] data = new ChangeHueSaturationIntensityCommandData[1];
4: data[0] = new ChangeHueSaturationIntensityCommandData();
5: data[0].Hue = 18000;
6: data[0].Saturation = 0;
7: data[0].Intensity = 0;
8: data[0].OuterLow = 315;
9: data[0].OuterHigh = 45;
10: data[0].InnerLow = 345;
11: data[0].InnerHigh = 15;
12: command.Data = data;
13: command.Hue = 0;
14: command.Saturation = 0;
15: command.Intensity = 0;
16:
17: command.Run(temp);
18: afterPic.Image = temp;
15、编译运行程序，本DEMO使用了10个类对图像的对比度和亮度进行调整，截图如下：
