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AddCommand Class
See Also  Members   Example 



Adds or averages the images in a list.

Syntax

Visual Basic (Declaration) 
Public Class AddCommand 
   Inherits RasterCommand
   Implements IRasterCommand 
Visual Basic (Usage)Copy Code
Dim instance As AddCommand
C# 
public class AddCommand : RasterCommand, IRasterCommand 
C++/CLI 
public ref class AddCommand : public RasterCommand, IRasterCommand 

Example

Run the AddCommand on an image.

Visual BasicCopy Code
Public Sub AddCommandExample()
   RasterCodecs.Startup()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim leadImage As RasterImage = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Master.jpg")

   ' Prepare the command
   Dim command As AddCommand = New AddCommand(AddCommandType.Add)
   command.Run(leadImage)
   codecs.Save(command.DestinationImage, LeadtoolsExamples.Common.ImagesPath.Path + "AddCommandResult.Bmp", RasterImageFormat.Bmp, 24)

   RasterCodecs.Shutdown()
End Sub
C#Copy Code
public void AddCommandExample() 
{ 
   // Load an image 
   RasterCodecs.Startup(); 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Master.jpg"); 
 
   // Prepare the command 
   AddCommand command = new AddCommand(AddCommandType.Add); 
   command.Run(image); 
   codecs.Save(command.DestinationImage, LeadtoolsExamples.Common.ImagesPath.Path + "AddCommandResult.bmp", RasterImageFormat.Bmp, 24); 
 
   RasterCodecs.Shutdown(); 
}

Remarks

  • This operation can be used to add several images of the same view to improve the lightness or brightness of the image. It can also eliminate the random noise contained in these images by doing an average of all images.
  • This command performs operations between data byte-by-byte. An image can be any color resolution. This command will allocate and store the resulting image in the DestinationImage property. The image resulting from this operation is internally copied from the first image in the list, before performing the adding operation. The operations are performed based on the smallest width and height of the input images.
  • All images must be either signed or unsigned.
  • This command supports 12 and 16-bit grayscale and 48 and 64-bit color images. Support for 12 and 16-bit grayscale and 48 and 64-bit color images is available only in the Document/Medical toolkits.
  • This command does not support 32-bit grayscale images.
For more information, refer to Changing Brightness and Contrast.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.Color.AddCommand

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also