Halftone Method

Visual Basic
C#
Objective-C
Java
C++

[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
)

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.

For the Leadtools.Services.ImageProcessing.DataContracts.HalftoneCommandType.UserDefined option, the number of images in the list must be at least equal to (Dimension * Dimension + 1). Images with higher indexes correspond to higher intensity values.
This command can process the whole image or a region of the image.
This command does not support 12 and 16-bit grayscale and 48 and 64-bit color images.
This command does not support signed data images.
This command supports 32-bit grayscale images.

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

Copy Code

Imports Leadtools.Services
Imports Leadtools.Services.datacontracts._2009._01
Imports Leadtools.Services.raster.datacontracts._2009._01
Imports Leadtools.Services.ImageProcessing.datacontracts._2009._01

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

using Leadtools.Services;
using leadtools.services.datacontracts._2009._01;
using leadtools.services.raster.datacontracts._2009._01;
using leadtools.services.imageprocessing.datacontracts._2009._01;

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";
}

Target Platforms

Reference

IColorProcessingService Interface
IColorProcessingService Members