Combining Images With Regions

Take the following steps to start a project and to add some code that combines two images with a region:

Start Visual Studio.
Choose File->New->Project… from the menu.
In the New Project dialog box, choose either "Visual C# Projects" or "VB Projects" in the Projects Type List, and choose "Windows Application " in the Templates List.
Type the project name as "Combining Images with Regions" in the Project Name field, and then click OK. If desired, type a new location for your project or select a directory using the Browse button, and then click OK .
In the "Solution Explorer" window, right-click on the "References" folder, and select "Add Reference…" from the context menu. In the "Add Reference" dialog box, select the ".NET" tab and browse to Leadtools For .NET "<LEADTOOLS_INSTALLDIR>\Bin\DotNet4\Win32 " folder and select the following DLLs:
- Leadtools.dll
- Leadtools.Codecs.dll
- Leadtools.Controls.WinForms.dll
- Leadtools.Codecs.Cmp.dll
Click the Select button and then press the OK button to add the above DLLs to the application.
Make sure Form1 is in design view. Go to the toolbox (View->Toolbox) and Drag and drop an instance of ImageViewer to the form. If you do not have ImageViewer in your toolbox, select Tools->Add Remove Toolbox Items from the menu. Click Browse and then select Leadtools.Controls.WinForms.DLL from "<LEADTOOLS_INSTALLDIR>\Bin\DotNet4\Win32" and then click Open and then click OK.
Change the following properties:

Property Value

Dock Fill

Switch to Form1 code view (right-click Form1 in the solution explorer then select View Code ) and add the following lines at the beginning of the file:

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.Controls.WinForms 
Imports Leadtools.ImageProcessing

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Controls.WinForms; 
using Leadtools.ImageProcessing;

Add an event handler to the Form1 Load event and add the following code:

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 
   ' initialize a new RasterCodecs object 
   Dim codecs As New RasterCodecs() 
   ' load the main image into our viewer 
   RasterImageViewer1.Image = codecs.Load("C:\Users\Public\Documents\LEADTOOLS Images\Sample1.cmp") 
   ' load the temporary image 
   Dim tempImage As RasterImage = codecs.Load("C:\Users\Public\Documents\LEADTOOLS Images\Sample2.cmp") 
   ' add a region to the image 
   tempImage.AddRectangleToRegion(Nothing, New LeadRect(100, 100, 200, 200), RasterRegionCombineMode.Set) 
   ' combine 
   Dim combine As New CombineFastCommand() 
   combine.DestinationImage = RasterImageViewer1.Image 
   combine.DestinationRectangle = New LeadRect(0, 0, tempImage.ImageWidth, tempImage.ImageHeight) 
   combine.SourcePoint = LeadPoint.Empty 
   combine.Flags = CombineFastCommandFlags.OperationAverage 
   combine.Run(tempImage) 
   tempImage.Dispose() 
End Sub

private void Form1_Load(object sender, System.EventArgs e) 
{ 
   // initialize a new RasterCodecs object 
   RasterCodecs codecs = new RasterCodecs(); 
   // load the main image into our viewer 
   rasterImageViewer1.Image = codecs.Load(@"C:\Users\Public\Documents\LEADTOOLS Images\Sample1.cmp"); 
   // load the temporary image 
   using(RasterImage tempImage = codecs.Load(@"C:\Users\Public\Documents\LEADTOOLS Images\Sample2.cmp")) 
   { 
      // add a region to the image 
      tempImage.AddRectangleToRegion(null, new Rectangle(100, 100, 200, 200), RasterRegionCombineMode.Set); 
      // combine 
      CombineFastCommand combine = new CombineFastCommand(); 
      combine.DestinationImage = rasterImageViewer1.Image; 
      combine.DestinationRectangle = new Rectangle(0, 0, tempImage.ImageWidth, tempImage.ImageHeight); 
      combine.SourcePoint = Point.Empty; 
      combine.Flags = CombineFastCommandFlags.OperationAverage; 
      combine.Run(tempImage); 
   } 
}