LEADTOOLS WCF Image Processing (Leadtools.Services.ImageProcessing.ServiceContracts assembly)
LEAD Technologies, Inc

Median Method

Example 





A System.Runtime.Serialization.DataContractAttribute containing the data that will be used in this Median operation.
Changes the color of each pixel in an image to the median color of pixels in its neighborhood. This is similar to the Average operation, but it is used for noise reduction, rather than a blur effect.
Syntax
[OperationContractAttribute("Median")]
[FaultContractAttribute(DetailType=Leadtools.Services.Raster.FaultContracts.RasterFault, 
   Action="", 
   Name="", 
   Namespace="", 
   ProtectionLevel=ProtectionLevel.None, 
   HasProtectionLevel=false)]
CommandResponse Median( 
   MedianRequest request
)
'Declaration
 
<OperationContractAttribute("Median")>
<FaultContractAttribute(DetailType=Leadtools.Services.Raster.FaultContracts.RasterFault, 
   Action="", 
   Name="", 
   Namespace="", 
   ProtectionLevel=ProtectionLevel.None, 
   HasProtectionLevel=False)>
Function Median( _
   ByVal request As MedianRequest _
) As CommandResponse
'Usage
 
Dim instance As IFiltersProcessingService
Dim request As MedianRequest
Dim value As CommandResponse
 
value = instance.Median(request)
[OperationContractAttribute("Median")]
[FaultContractAttribute(DetailType=Leadtools.Services.Raster.FaultContracts.RasterFault, 
   Action="", 
   Name="", 
   Namespace="", 
   ProtectionLevel=ProtectionLevel.None, 
   HasProtectionLevel=false)]
CommandResponse Median( 
   MedianRequest request
)
OperationContractAttribute("Median")
FaultContractAttribute(DetailType=Leadtools.Services.Raster.FaultContracts.RasterFault, 
   Action="", 
   Name="", 
   Namespace="", 
   ProtectionLevel=ProtectionLevel.None, 
   HasProtectionLevel=)
function Leadtools.Services.ImageProcessing.ServiceContracts.IFiltersProcessingService.Median( 
   request 
)
[OperationContractAttribute("Median")]
[FaultContractAttribute(DetailType=Leadtools.Services.Raster.FaultContracts.RasterFault, 
   Action="", 
   Name="", 
   Namespace="", 
   ProtectionLevel=ProtectionLevel.None, 
   HasProtectionLevel=false)]
CommandResponse^ Median( 
   MedianRequest^ request
) 

Parameters

request
A System.Runtime.Serialization.DataContractAttribute containing the data that will be used in this Median operation.

Return Value

A System.Runtime.Serialization.DataContractAttribute containing the modified image resulting from the Median operation.
Remarks
For more information, refer to Removing Noise.
Example
 
Public Sub MedianExample()
      Dim client As FiltersProcessingServiceClient = New FiltersProcessingServiceClient()
      Dim sourceBinaryData As RawBinaryData = New RawBinaryData()
      sourceBinaryData.Data = File.ReadAllBytes(Path.Combine(LEAD_VARS.ImagesDir, "image1.cmp"))

      Dim convertOptions As RasterConvertOptions = New RasterConvertOptions()

      convertOptions.Source = sourceBinaryData
      convertOptions.Destination = Nothing
      convertOptions.Format = RasterImageFormat.Bmp
      convertOptions.FirstPage = 1
      convertOptions.LastPage = 1
      convertOptions.BitsPerPixel = 24
      convertOptions.QualityFactor = 2

      Dim request As MedianRequest = New MedianRequest()

      request.ConvertOptions = convertOptions
      request.Dimension = 9
      request.RegionData = Nothing

      Dim response As CommandResponse = client.Median(request)
      If Not response.Destination Is Nothing Then
         If TypeOf response.Destination Is RawBinaryData Then
            File.WriteAllBytes(Path.Combine(LEAD_VARS.ImagesDir, "Median.bmp"), (TryCast(response.Destination, RawBinaryData)).Data)
         End If
      End If

      client.Close()
   End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
public void MedianExample()
   {
      FiltersProcessingServiceClient client = new FiltersProcessingServiceClient();
      RawBinaryData sourceBinaryData = new RawBinaryData();
      sourceBinaryData.Data = File.ReadAllBytes(Path.Combine(LEAD_VARS.ImagesDir,"image1.cmp"));

      RasterConvertOptions convertOptions = new RasterConvertOptions();

      convertOptions.Source = sourceBinaryData;
      convertOptions.Destination = null;
      convertOptions.Format = RasterImageFormat.Bmp;
      convertOptions.FirstPage = 1;
      convertOptions.LastPage = 1;
      convertOptions.BitsPerPixel = 24;
      convertOptions.QualityFactor = 2;

      MedianRequest request = new MedianRequest();

      request.ConvertOptions = convertOptions;
      request.Dimension = 9;
      request.RegionData = null;

      CommandResponse response = client.Median(request);
      if (response.Destination != null)
      {
         if (response.Destination is RawBinaryData)
            File.WriteAllBytes(Path.Combine(LEAD_VARS.ImagesDir,"Median.bmp"), (response.Destination as RawBinaryData).Data);
      }

      client.Close();
   }

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

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

See Also

Reference

IFiltersProcessingService Interface
IFiltersProcessingService Members

 

 


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Applications developed with LEADTOOLS WCF components require runtime licenses. Server licensing is required for applications on a server. For more information, refer to: Imaging Pro/Document/Medical