Halftone Method
Summary
Converts a 1-bit, 4-bit, 8-bit, 16-bit, 24-bit, 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.
Example
using Leadtools.Services;
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";
}
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
