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HighPassCommandBitmapEffect Class
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Leadtools.Windows.Media.Effects.Effects Namespace : HighPassCommandBitmapEffect Class




Removes low frequency details in an image, resulting in a sharpened image. This command is available in the Raster Pro and above toolkits.

Syntax

Visual Basic (Declaration) 
Public Class HighPassCommandBitmapEffect 
   Inherits RasterCommandBitmapEffect
Visual Basic (Usage)Copy Code
Dim instance As HighPassCommandBitmapEffect
C# 
public class HighPassCommandBitmapEffect : RasterCommandBitmapEffect
Managed Extensions for C++ 
public __gc class HighPassCommandBitmapEffect : public RasterCommandBitmapEffect
C++/CLI 
public ref class HighPassCommandBitmapEffect : public RasterCommandBitmapEffect

Example

Run the HighPassCommandBitmapEffect on an image and apply the HighPass filter.

Remarks

  • This command removes low-frequency detail in the image. The method is opposite to that of the Gaussian Blur method
  • To increase the thickness of the edges, increase the value of radius. Usually a low value for radius is better.
  • Unlike the UnsharpMaskCommandBitmapEffect, when using this command, the low frequency features are removed from the image.
  • As an example, if you use the following image:

    And you were to call HighPassCommandBitmapEffect using the following settings:
    Parameter Value
    Radius 6
    Opacity 100

    The following figure results:
  • This command 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.
  • This command does not support 32-bit grayscale images.

Inheritance Hierarchy

System.Object
   System.Windows.Threading.DispatcherObject
      System.Windows.DependencyObject
         System.Windows.Freezable
            System.Windows.Media.Animation.Animatable
               System.Windows.Media.Effects.BitmapEffect
                  Leadtools.Windows.Media.Effects.RasterCommandBitmapEffect
                     Leadtools.Windows.Media.Effects.Effects.HighPassCommandBitmapEffect

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also