LEADTOOLS Image Processing (Leadtools.ImageProcessing.SpecialEffects assembly) Send comments on this topic. | Back to Introduction - All Topics | Help Version 17.0.3.29
PixelateCommand Class
See Also  Members  
Leadtools.ImageProcessing.SpecialEffects Namespace : PixelateCommand Class



Divides the image into rectangular or circular cells and then recreates the image by filling those cells with the minimum, maximum, or average pixel value, depending upon the effect that was selected. This command is available in the Raster Pro and above toolkits.

Object Model

PixelateCommand Class

Syntax

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

Example

Run the Leadtools.ImageProcessing.SpecialEffects.PixelateCommand on an image. by dividing it into circular cells with angle length = 5, and radius = 10.

Visual BasicCopy Code
Public Sub PixelateCommandExample()
   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 PixelateCommand = New PixelateCommand
   command.CenterPoint = New LeadPoint(leadImage.Width \ 2, leadImage.Height \ 2)
   command.CellWidth = 5
   command.CellHeight = 10
   command.Opacity = 100
   command.Flags = PixelateCommandFlags.Radial Or _
      PixelateCommandFlags.WidthPeriod Or _
      PixelateCommandFlags.HeightPeriod Or _
   PixelateCommandFlags.Average
   command.Run(leadImage)
   codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24)

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 PixelateCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

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

      // Prepare the command
      PixelateCommand command   = new PixelateCommand();
      command.CenterPoint = new LeadPoint((image.Width / 2), (image.Height / 2));
      command.CellWidth         = 5;
      command.CellHeight        = 10;
      command.Opacity           = 100;
      command.Flags             = PixelateCommandFlags.Radial |
         PixelateCommandFlags.WidthPeriod  |
         PixelateCommandFlags.HeightPeriod |
         PixelateCommandFlags.Average;
      command.Run(image);
      codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24);

   }

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

Remarks

  • This command will divide the image into rectangular or circular cells.
  • Flags indicate whether to use rectangular or circular cells and indicates the type of information in the other properties or parameters.
  • If the image is divided into circular cells by setting the PixelateCommandFlags.Radial flag, the cells will be centered around the specified center point. This center point must be defined inside the image or inside the region, if the image has a region. If the image has a region, the effect will be applied on the region only.
  • This command supports 12- and 16-bit grayscale and 48- and 64-bit color images. Supportfor 12- and 16-bit grayscale and 48- and 64-bit color images is available only in the Document/Medical toolkits.
  • An example of circular cell division can be seen below:
    This is the original image:



    The image below is the result of the following settings:
    command.Flags = PixelateCommandFlags.Radial | PixelateCommandFlags.WidthPeriod | PixelateCommandFlags.HeightPeriod | PixelateCommandFlags.Average;
    command.CellWidth = 90;
    command.CellHeight = 40;

    This indicates the circular cells are divided into 90 degree cell divisions and each cell has a radial length of 40 pixels. Each cell division is filled with the average value for that cell division.



    The image below is the result of the following settings:

    command.Flags = PixelateCommandFlags.Radial | PixelateCommandFlags.WidthFrequency | PixelateCommandFlags.HeightFrequency | PixelateCommandFlags.Average;
    command.CellWidth = 90;
    command.CellHeight = 40;

    This indicates the circular cells are divided into 90 separate cell divisions around the center point and there are 40 cell divisions along the radius. Each cell division is filled with the average value for that cell division.

  • This command does not support signed data images.
  • This command does not support 32-bit grayscale images.
For more information, refer to Applying Artistic Effects.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.SpecialEffects.PixelateCommand

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7

See Also

Reference

PixelateCommand Members
Leadtools.ImageProcessing.SpecialEffects Namespace
Applying Artistic Effects
Leadtools.ImageProcessing.Effects.AddNoiseCommand
Leadtools.ImageProcessing.Effects.EmbossCommand
Leadtools.ImageProcessing.Effects.MosaicCommand
Leadtools.ImageProcessing.Effects.MotionBlurCommand
Leadtools.ImageProcessing.Effects.OilifyCommand
Leadtools.ImageProcessing.Color.PosterizeCommand
Leadtools.ImageProcessing.Color.RemoveRedEyeCommand
Leadtools.ImageProcessing.Color.SolarizeCommand
BendCommand Class
CylinderCommand Class
FreeHandShearCommand Class
FreeHandWaveCommand Class
ImpressionistCommand Class
PolarCommand Class
RadialBlurCommand Class
RadialWaveCommand Class
RippleCommand Class
SphereCommand Class
SwirlCommand Class
WaveCommand Class
WindCommand Class
ZoomBlurCommand Class
ZoomWaveCommand Class
BumpMapCommand Class
Leadtools.ImageProcessing.Effects.CubismCommand
DrawStarCommand Class
DryCommand Class
FreePlaneBendCommand Class
FreeRadialBendCommand Class
GlassEffectCommand Class
GlowCommand Class
LensFlareCommand Class
LightCommand Class
OceanCommand Class
PlaneBendCommand Class
PlaneCommand Class
Leadtools.ImageProcessing.Color.SampleTargetCommand
TunnelCommand Class
BricksTextureCommand Class
CanvasCommand Class
CloudsCommand Class
ColoredBallsCommand Class
DiffuseGlowCommand Class
Leadtools.ImageProcessing.Effects.DisplacementCommand
FragmentCommand Class
Leadtools.ImageProcessing.Core.HalfTonePatternCommand
Leadtools.ImageProcessing.Effects.MaskConvolutionCommand
MosaicTilesCommand Class
Leadtools.ImageProcessing.Effects.OffsetCommand
PerspectiveCommand Class
PlasmaCommand Class
PointillistCommand Class
RomanMosaicCommand Class
VignnetCommand Class
ZigZagCommand Class