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

Halftone Method

Example 





A System.Runtime.Serialization.DataContractAttribute containing the data that will be used in this Halftone operation.
Converts a 1-, 4-, 8-, 16-, 24-, or 32-bit image to a halftoned image, with a specified pattern rotation. A halftoned image is a 1-bit image that has been dithered for black and white printing or display.
Syntax
[OperationContractAttribute("Halftone")]
[FaultContractAttribute(DetailType=Leadtools.Services.Raster.FaultContracts.RasterFault, 
   Action="", 
   Name="", 
   Namespace="", 
   ProtectionLevel=ProtectionLevel.None, 
   HasProtectionLevel=false)]
CommandResponse Halftone( 
   HalftoneRequest request
)
'Declaration
 
<OperationContractAttribute("Halftone")>
<FaultContractAttribute(DetailType=Leadtools.Services.Raster.FaultContracts.RasterFault, 
   Action="", 
   Name="", 
   Namespace="", 
   ProtectionLevel=ProtectionLevel.None, 
   HasProtectionLevel=False)>
Function Halftone( _
   ByVal request As HalftoneRequest _
) As CommandResponse
'Usage
 
Dim instance As IColorProcessingService
Dim request As HalftoneRequest
Dim value As CommandResponse
 
value = instance.Halftone(request)
[OperationContractAttribute("Halftone")]
[FaultContractAttribute(DetailType=Leadtools.Services.Raster.FaultContracts.RasterFault, 
   Action="", 
   Name="", 
   Namespace="", 
   ProtectionLevel=ProtectionLevel.None, 
   HasProtectionLevel=false)]
CommandResponse Halftone( 
   HalftoneRequest request
)
OperationContractAttribute("Halftone")
FaultContractAttribute(DetailType=Leadtools.Services.Raster.FaultContracts.RasterFault, 
   Action="", 
   Name="", 
   Namespace="", 
   ProtectionLevel=ProtectionLevel.None, 
   HasProtectionLevel=)
function Leadtools.Services.ImageProcessing.ServiceContracts.IColorProcessingService.Halftone( 
   request 
)
[OperationContractAttribute("Halftone")]
[FaultContractAttribute(DetailType=Leadtools.Services.Raster.FaultContracts.RasterFault, 
   Action="", 
   Name="", 
   Namespace="", 
   ProtectionLevel=ProtectionLevel.None, 
   HasProtectionLevel=false)]
CommandResponse^ Halftone( 
   HalftoneRequest^ request
) 

Parameters

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

Return Value

A System.Runtime.Serialization.DataContractAttribute containing the modified image resulting from the Halftone operation.
Remarks
Example
 
Public Sub HalftoneExample()
      Dim client As ColorProcessingServiceClient = New ColorProcessingServiceClient()
      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 HalftoneRequest = New HalftoneRequest()

      request.ConvertOptions = convertOptions
      request.RegionData = Nothing
      request.Angle = 0
      request.Dimension = 2
      request.Type = HalftoneCommandType.View

      Dim response As CommandResponse = client.Halftone(request)
      If Not response.Destination Is Nothing Then
         If TypeOf response.Destination Is RawBinaryData Then
            File.WriteAllBytes(Path.Combine(LEAD_VARS.ImagesDir, "Halftone.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 HalftoneExample()
   {
      ColorProcessingServiceClient client = new ColorProcessingServiceClient();
      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;

      HalftoneRequest request = new HalftoneRequest();

      request.ConvertOptions = convertOptions;
      request.RegionData = null;
      request.Angle = 0;
      request.Dimension = 2;
      request.Type = HalftoneCommandType.View;

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

IColorProcessingService Interface
IColorProcessingService 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