MedianCommand Class

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public class MedianCommand : Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

'Declaration
 
Public Class MedianCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand

'Usage
 
Dim instance As MedianCommand

public sealed class MedianCommand : Leadtools.ImageProcessing.IRasterCommand

function Leadtools.ImageProcessing.Core.MedianCommand()

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

You control the effect by specifying the size of the neighborhood that is used for calculating the median value. For 8x8, 8 in the Dimension property or pass the value 8 for the dimension parameter of the Constructor.
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.
If the image has a region, this command works only on the region. If the image does not have a region, this command works on the entire image.
This command does not support 32-bit grayscale images.

For more information, refer to Removing Noise.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Public Sub MedianCommandExample()
   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 MedianCommand = New MedianCommand
   'Apply a median filter with a neighborhood of 9x9 pixels.
   command.Dimension = 9

   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 MedianCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

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

      // Prepare the command
      MedianCommand command  = new MedianCommand();
      //Apply a median filter with a neighborhood of 9x9 pixels.
      command.Dimension      = 9;
      command.Run(image);

   }

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

function MedianCommandExample()
{
   var codecs = new Leadtools.Codecs.RasterCodecs();
   codecs.throwExceptionsOnInvalidImages = true;

   // Load the image
   var srcFileName = "Assets\\Image1.cmp";
   return Tools.AppInstallFolder().getFileAsync(srcFileName).then(function (loadFile) {
      return codecs.loadAsync(Leadtools.LeadStreamFactory.create(loadFile));
   }).then(function (image) {
      // Prepare the command
      with (Leadtools.ImageProcessing.Core) {
         var command  = new MedianCommand();
         //Apply a median filter with a neighborhood of 9x9 pixels.
         command.dimension = 9;
         command.run(image);
      }
   });
}

[TestMethod]
public async Task MedianCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   // Load the image
   string srcFileName = @"Assets\Image1.cmp";
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Prepare the command
   MedianCommand command  = new MedianCommand();
   //Apply a median filter with a neighborhood of 9x9 pixels.
   command.Dimension      = 9;
   command.Run(image);

}

public void MedianCommandExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   MedianCommand command  = new MedianCommand();
   //Apply a median filter with a neighborhood of 9x9 pixels.
   command.Dimension      = 9;
   command.Run(image);
   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);
   image.Dispose();
}

Public Sub MedianCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As MedianCommand = New MedianCommand()
   'Apply a median filter with a neighborhood of 9x9 pixels.
   command.Dimension = 9
   command.Run(image)
   ' Save result image
   Dim codecs As RasterCodecs = New RasterCodecs()
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24)
   image.Dispose()
End Sub

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference