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FunctionalLightCommand Class
See Also  Members   Example 
Leadtools.ImageProcessing.SpecialEffects Namespace : FunctionalLightCommand Class



Adds light to the image according to a function-based distribution. This light will be generated by one of the following methods: linear, quadratic, sine, cosine, or using freehand points. This method is available in the Raster Pro and above toolkits.

Syntax

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

Example

Run the FunctionalLightCommand on an image.

Visual Basic Copy Code
Public Sub FunctionalLightCommandExample()
   RasterCodecs.Startup()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim leadImage As RasterImage = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Master.jpg")

   ' Prepare the command
   Dim command As FunctionalLightCommand = New FunctionalLightCommand
   command.RedAmplitude = 75
   command.Flags = FunctionalLightCommandFlags.LinearQuadratic Or FunctionalLightCommandFlags.LinearOuter
   command.Origin = New Point(leadImage.Width \ 2, leadImage.Height \ 2)
   ' Apply the linear lighting effect.
   command.Run(leadImage)
   codecs.Save(leadImage, LeadtoolsExamples.Common.ImagesPath.Path + "Result.jpg", RasterImageFormat.Jpeg, 24)

   RasterCodecs.Shutdown()
End Sub
C# Copy Code
public void FunctionalLightCommandExample() 
{ 
   // Load an image 
   RasterCodecs.Startup(); 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Master.jpg"); 
 
   // Prepare the command 
   FunctionalLightCommand command = new FunctionalLightCommand(); 
   command.RedAmplitude =  75; 
   command.Flags         =  FunctionalLightCommandFlags.LinearQuadratic | 
      FunctionalLightCommandFlags.LinearOuter; 
   command.Origin       =  new Point((image.Width/2),(image.Height/2)); 
   // Apply the linear lighting effect. 
   command.Run(image); 
   codecs.Save(image, LeadtoolsExamples.Common.ImagesPath.Path + "Result.jpg", RasterImageFormat.Jpeg, 24); 
 
   RasterCodecs.Shutdown(); 
}

Remarks

  • Controls the brightness of the image according to the method selected for generating the light.
  • This command supports all bits/pixel supported by LEADTOOLS.
  • 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 signed data images.
  • This command does not support 32-bit grayscale images.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.SpecialEffects.FunctionalLightCommand

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