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GrayScaleExtendedCommandBitmapEffect Class
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Leadtools.Windows.Media.Effects.Color Namespace : GrayScaleExtendedCommandBitmapEffect Class




Converts any image to a gray scale image without changing its resolution.

Syntax

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

Example

Run the GrayScaleExtendedCommandBitmapEffect on an image with RedFactor = 300, GreenFactor = 590, and BlueFactor = 110.

Remarks

  • RedFactor + GreenFactor + BlueFactor must equal 1000. (Internally the values are divided by 1000).

  • For each pixel in the image the red, green and blue values are modified by the RedFactor, GreenFactor and BlueFactor properties, respectively. This allows the user to give more weight to one color, essentially enhancing that color, before the pixel is converted to grayscale.
  • For example, if an object of this class has the RedFactor set to 500, the GreenFactor set to 250 and the BlueFactor set to 250, the red value of each pixel will get 50 percent of the weight when determining the grayscale value. The green value will get 25 percent of the weight and the blue value will get 25 percent of the weight when determining the grayscale value. This highlights or enhances the red in the image, prior to conversion to grayscale.
  • This class 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 signed 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.Color.GrayScaleExtendedCommandBitmapEffect

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