Public Class SigmaCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements IRasterCommand 

Dim instance As SigmaCommand

public class SigmaCommand : Leadtools.ImageProcessing.RasterCommand, IRasterCommand  

public ref class SigmaCommand : public Leadtools.ImageProcessing.RasterCommand, IRasterCommand  

Public Sub SigmaCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "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)

End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

public void SigmaCommandExample()
     {
         // Load an image
         RasterCodecs codecs = new RasterCodecs();
         codecs.ThrowExceptionsOnInvalidImages = true;

         RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "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);

     }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}