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




Removes speckles from an image. Typically, this command is used to clean up scanned images (such as FAX images). This command is available in the Document/Medical Toolkits.

Syntax

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

Example

Visual BasicCopy Code
ImageProcessing.Core.DespeckleCommand
   Public Sub DespeckleCommandExample()
      RasterCodecs.Startup()
      Dim codecs As New RasterCodecs()
      codecs.ThrowExceptionsOnInvalidImages = True

      Dim leadImage As RasterImage = codecs.Load("C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Clean.tif")

      ' Prepare the command
      Dim command As DespeckleCommand = New DespeckleCommand
      'Remove speckles from the image.

      command.Run(leadImage)

      RasterCodecs.Shutdown()
   End Sub
C#Copy Code
ImageProcessing.Core.DespeckleCommand 
      public void DespeckleCommandExample() 
      { 
         // Load an image 
         RasterCodecs.Startup(); 
         RasterCodecs codecs = new RasterCodecs(); 
         codecs.ThrowExceptionsOnInvalidImages = true; 
 
         RasterImage image = codecs.Load(@"C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Clean.tif"); 
 
         // Prepare the command 
         DespeckleCommand command = new DespeckleCommand(); 
         //Remove speckles from the image. 
         command.Run(image); 
 
         RasterCodecs.Shutdown(); 
      }

Remarks

  • This command removes 1-pixel speckles, and shrinks some larger speckles. Therefore, in some cases, larger speckles can be completely removed by running it more than once.
  • 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 Removing Noise.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.Core.DespeckleCommand

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