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EdgeDetectStatisticalCommand Class
See Also  Members   Example 
Leadtools.ImageProcessing.Effects Namespace : EdgeDetectStatisticalCommand Class




Detects edges by examining the variation of colors in all directions using statistical indices.

Syntax

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

Example

Visual BasicCopy Code
ImageProcessing.Effects.EdgeDetectStatisticalCommand
   Public Sub EdgeDetectStatisticalCommandExample()
      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 EdgeDetectStatisticalCommand = New EdgeDetectStatisticalCommand
      command.Dimension = 15
      command.Threshold = 128
      command.EdgeColor = New RasterColor(255, 255, 255)
      command.BackGroundColor = New RasterColor(0, 0, 0)
      ' Apply an edge detector statistical command.
      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.Effects.EdgeDetectStatisticalCommand 
      public void EdgeDetectStatisticalCommandExample() 
      { 
         // 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 
         EdgeDetectStatisticalCommand command = new EdgeDetectStatisticalCommand(); 
         command.Dimension       = 15; 
         command.Threshold       = 128; 
         command.EdgeColor       = new RasterColor(255, 255, 255); 
         command.BackGroundColor = new RasterColor(0, 0, 0); 
         // Apply an edge detector statistical command. 
         command.Run(image); 
         codecs.Save(image, @"C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Result.jpg", RasterImageFormat.Jpeg, 24); 
 
         RasterCodecs.Shutdown(); 
      }

Remarks

  • The edges are detected by applying a statistical filter that analyzes the variations of colors in all directions around each pixel.
  • 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.
For more information, refer to Detecting and Enhancing Edges and Lines.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.Effects.EdgeDetectStatisticalCommand

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