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HalfTonePatternCommand Class
See Also  Members  
Leadtools.ImageProcessing.Core Namespace : HalfTonePatternCommand Class



Creates a halftone screen effect for an image while keeping its continuous range of tones. This method is available in the Document/Medical toolkits.

Object Model

HalfTonePatternCommand Class

Syntax

Visual Basic (Declaration) 
Public Class HalfTonePatternCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements IRasterCommand 
Visual Basic (Usage)Copy Code
Dim instance As HalfTonePatternCommand
C# 
public class HalfTonePatternCommand : Leadtools.ImageProcessing.RasterCommand, IRasterCommand  
C++/CLI 
public ref class HalfTonePatternCommand : public Leadtools.ImageProcessing.RasterCommand, IRasterCommand  

Example

Run the Leadtools.ImageProcessing.Core.HalfTonePatternCommand on an image.

Visual BasicCopy Code
Public Sub HalfTonePatternCommandExample()
   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 New HalfTonePatternCommand
   command.Contrast = 100
   command.Ripple = 200
   command.AngleContrast = 12
   command.AngleRipple = 2
   command.AngleOffset = 4500
   command.BackGroundColor = New RasterColor(255, 255, 255)
   command.ForeGroundColor = New RasterColor(255, 0, 0)
   command.Type = HalfTonePatternCommandType.Line
   command.Run(leadImage)

End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
C#Copy Code
public void HalfTonePatternCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

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

      // Prepare the command
      HalfTonePatternCommand command  = new HalfTonePatternCommand();
      command.Contrast = 100;
      command.Ripple = 200;
      command.AngleContrast = 12;
      command.AngleRipple = 2;
      command.AngleOffset = 4500;
      command.BackGroundColor = new RasterColor(255, 255, 255);
      command.ForeGroundColor = new RasterColor(255, 0,0);
      command.Type = HalfTonePatternCommandType.Line;
      command.Run(image);

   }

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

Remarks

  • This method 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 method works only on the region. If the image does not have a region, this method works on the entire image.
  • This method does not support signed data images.
  • This command does not support 32-bit grayscale images.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.Core.HalfTonePatternCommand

Requirements

Target Platforms: Silverlight 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only)

See Also

Reference

HalfTonePatternCommand Members
Leadtools.ImageProcessing.Core Namespace
Color Halftone and Halftone Images
Leadtools.ImageProcessing.GrayscaleCommand
Leadtools.ImageProcessing.Color.GrayScaleExtendedCommand
Leadtools.ImageProcessing.Color.AutoColorLevelCommand
Leadtools.ImageProcessing.Color.ColorLevelCommand
CorrelationCommand Class
Leadtools.ImageProcessing.Color.GrayScaleToDuotoneCommand
Leadtools.ImageProcessing.Color.GrayScaleToMultitoneCommand
Leadtools.ImageProcessing.Effects.RegionHolesRemovalCommand
Leadtools.ImageProcessing.Color.SelectiveColorCommand
Leadtools.ImageProcessing.Effects.SkeletonCommand
HalfToneCommand Class
Leadtools.ImageProcessing.SpecialEffects.PointillistCommand
Leadtools.ImageProcessing.Effects.ColorHalftoneCommand
Leadtools.ImageProcessing.Color.ColorSeparateCommand
Leadtools.ImageProcessing.Color.ColorMergeCommand
Leadtools.ImageProcessing.Color.DesaturateCommand
Leadtools.ImageProcessing.Effects.StatisticsInformationCommand
Leadtools.ImageProcessing.Color.HistogramCommand
Leadtools.ImageProcessing.Color.ColorCountCommand
MinMaxBitsCommand Class
MinMaxValuesCommand Class
Leadtools.ImageProcessing.Color.ConvertToColoredGrayCommand
ColorizeGrayCommand Class
ShiftDataCommand Class
SelectDataCommand Class
WindowLevelCommand Class
WindowLevelCommand Class
Leadtools.RasterPalette.WindowLevelFillLookupTable(Leadtools.RasterColor[],Leadtools.RasterColor,Leadtools.RasterColor,System.Int32,System.Int32,System.Int32,System.Int32,System.Int32,System.Int32,System.Int32,Leadtools.RasterPaletteWindowLevelFlags)