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SigmaCommand Class

Summary

Performs an edge preserving average filter on bitmap.

Syntax

C#
VB
WinRT C#
C++
public class SigmaCommand : RasterCommand 
function Leadtools.ImageProcessing.Core.SigmaCommand() 

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.
Example

Runs the SigmaCommand on the Image.

C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void SigmaCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "sample5.cmp")); 
 
   // 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"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
      Leadtools.Examples.Support.SetLicense() 
        Leadtools.Examples.Support.SetLicense() 
 
Public Sub SigmaCommandExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "sample5.cmp")) 
 
   ' 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 

Requirements

Target Platforms

Help Version 19.0.2017.10.27
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Leadtools.ImageProcessing.Core Assembly