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



Performs a contour segment filter on the source image. This command is available in the Medical Toolkits.

Syntax

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

Example

Run the ContourFilterCommand on an image.

Visual BasicCopy Code
Public Sub ContourFilterCommandExample()
   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 ContourFilterCommand = New ContourFilterCommand
   command.Threshold = 15
   command.DeltaDirection = 35
   command.MaximumError = 5
   command.Type = ContourFilterCommandType.Thin

   command.Run(leadImage)
   codecs.Save(leadImage, LeadtoolsExamples.Common.ImagesPath.Path + "Result.jpg", RasterImageFormat.Jpeg, 24)

   RasterCodecs.Shutdown()
End Sub
C#Copy Code
public void ContourFilterCommandExample() 
{ 
   // Load an image 
   RasterCodecs.Startup(); 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Beauty16.jpg", 16, CodecsLoadByteOrder.BgrOrGray, 1, 1); 
 
   // Prepare the command 
   ContourFilterCommand command = new ContourFilterCommand(); 
   command.Threshold = 15; 
   command.DeltaDirection = 35; 
   command.MaximumError = 5; 
   command.Type = ContourFilterCommandType.Thin; 
   command.Run(image); 
   codecs.Save(image, LeadtoolsExamples.Common.ImagesPath.Path + "Result.jpg", RasterImageFormat.Jpeg, 24); 
 
   RasterCodecs.Shutdown(); 
}

Remarks

  • The bits per pixel of the affected image will change according to the value of Type property, or the type parameter of the constructor as follows:
    If the type isBits per pixel will be:
    Thin8 bits per pixel grayscale
    LinkBlackWhite1 bit per pixel
    LinkGray8 bits per pixel grayscale
    LinkColor8 bits per pixel color
    ApproxColor8 bits per pixel color
  • This command supports 12 and 16-bit grayscale and 48 and 64-bit color images. Supportfor 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
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.Effects.ContourFilterCommand

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