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AddCommand Class

Adds or averages the images in a list. AddCommand gets the 'list' of bitmaps from the RasterImage's BitmapList property.
public class AddCommand : RasterCommand 
Public Class AddCommand  
   Inherits RasterCommand 
@interface LTAddCommand : LTRasterCommand 
public class AddCommand extends RasterCommand 
public ref class AddCommand : public RasterCommand   
  • 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.


Run the AddCommand on an image.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Color; 
public void AddCommandExample() 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "AddCommand.tif")); 
   // Prepare the command 
   AddCommand command = new AddCommand(AddCommandType.Add); 
   codecs.Save(command.DestinationImage, Path.Combine(LEAD_VARS.ImagesDir, "AddCommandResult.bmp"), RasterImageFormat.Bmp, 24); 
static class LEAD_VARS 
   public const string ImagesDir = @"C:\LEADTOOLS21\Resources\Images"; 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Color 
Public Sub AddCommandExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "AddCommand.tif")) 
   ' Prepare the command 
   Dim command As AddCommand = New AddCommand(AddCommandType.Add) 
   codecs.Save(command.DestinationImage, Path.Combine(LEAD_VARS.ImagesDir, "AddCommandResult.Bmp"), RasterImageFormat.Bmp, 24) 
End Sub 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\LEADTOOLS21\Resources\Images" 
End Class 

Target Platforms

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Leadtools.ImageProcessing.Color Assembly