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SigmaCommand Class

Summary
Performs an edge preserving average filter on bitmap.
Syntax
C#
Objective-C
C++/CLI
Python
public class SigmaCommand : RasterCommand 
@interface LTSigmaCommand : LTRasterCommand 
public ref class SigmaCommand : public RasterCommand   
class SigmaCommand(RasterCommand): 
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.

Sigma Function - Before

Sigma Function - Before

Sigma Function - After

Sigma Function - After

View additional platform support for this Sigma function.

Example

Runs the SigmaCommand on the Image.

C#
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:\LEADTOOLS23\Resources\Images"; 
} 
Requirements

Target Platforms

Help Version 23.0.2024.3.3
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Leadtools.ImageProcessing.Core Assembly

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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.