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SigmaCommand Class
See Also  Members   Example 
Leadtools.ImageProcessing.Core Namespace : SigmaCommand Class



Performs an edge preserving average filter on bitmap.

Syntax

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

Example

Runs the SigmaCommand on the Image.

Visual BasicCopy Code
Public Sub SigmaCommandExample()
   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 SigmaCommand = New SigmaCommand
   'Apply
   command.Dimension = 10
   command.Sigma = 2
   command.Threshold = 0.2F
   command.Outline = False
   command.Run(leadImage)

   RasterCodecs.Shutdown()
End Sub
C#Copy Code
public void SigmaCommandExample() 
{ 
    // Load an image 
    RasterCodecs.Startup(); 
    RasterCodecs codecs = new RasterCodecs(); 
    codecs.ThrowExceptionsOnInvalidImages = true; 
 
    RasterImage image =codecs.Load( "D:\\Lead15\\images2\\LEADTOOLS Images\\Master.jpg"); 
 
    // Prepare the command 
    SigmaCommand command = new SigmaCommand(); 
    //Apply  
    command.Dimension = 10; 
    command.Sigma = 2; 
    command.Threshold = 0.2f; 
    command.Outline = false; 
    command.Run(image); 
 
    RasterCodecs.Shutdown(); 
}

Remarks

  • The amount of blur is controlled by specifying the size of the neighborhood.
  • 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.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.Core.SigmaCommand

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