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




Makes the colored edges shine with a neon glow. This command is available in the Raster Proo and above toolkits.

Syntax

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

Example

Visual BasicCopy Code
ImageProcessing.SpecialEffects.GlowCommand
   Public Sub GlowCommandExample()
      RasterCodecs.Startup()
      Dim codecs As New RasterCodecs()
      codecs.ThrowExceptionsOnInvalidImages = True

      Dim leadImage As RasterImage = codecs.Load("C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Master.jpg")

      ' Prepare the command
      Dim command As GlowCommand = New GlowCommand
      command.Dimension = 5
      command.Brightness = 3
      command.Threshold = 0
      ' Apply glow effect on the image.
      command.Run(leadImage)
      codecs.Save(leadImage, "C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Result.jpg", RasterImageFormat.Jpeg, 24)

      RasterCodecs.Shutdown()
   End Sub
C#Copy Code
ImageProcessing.SpecialEffects.GlowCommand 
      public void GlowCommandExample() 
      { 
         // Load an image 
         RasterCodecs.Startup(); 
         RasterCodecs codecs = new RasterCodecs(); 
         codecs.ThrowExceptionsOnInvalidImages = true; 
 
         RasterImage image = codecs.Load(@"C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Master.jpg"); 
 
         // Prepare the command 
         GlowCommand command = new GlowCommand(); 
         command.Dimension  = 5; 
         command.Brightness = 3; 
         command.Threshold  = 0; 
         // Apply glow effect on the image. 
         command.Run(image); 
         codecs.Save(image, @"C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Result.jpg", RasterImageFormat.Jpeg, 24); 
 
         RasterCodecs.Shutdown(); 
      }

Remarks

  • This command detects the edge pixels by comparing the values of the pixel with surrounding pixels and if the edge value (the difference between the surrounding pixels and the pixel being evaluated) is greater than the Threshold value, the pixel is an edge pixel. The command then multiplies the values for the edge pixels by the brightness factor.
  • 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.
For more information, refer to Correcting Colors.

For more information, refer to Detecting and Enhancing Edges and Lines.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.SpecialEffects.GlowCommand

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