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RegionHolesRemovalCommand Class
See Also  Members  
Leadtools.ImageProcessing.Effects Namespace : RegionHolesRemovalCommand Class



Removes all the holes in a region. This command is available in the Document/Medical Toolkits.

Object Model

RegionHolesRemovalCommand Class

Syntax

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

Example

Run the Leadtools.ImageProcessing.Effects.RegionHolesRemovalCommand on an image.

Visual BasicCopy Code
Public Sub RegionHolesRemovalCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"))

   ' Prepare the command
   Dim rcRect As LeadRect = New LeadRect(leadImage.Width \ 8, leadImage.Height \ 8, leadImage.Width \ 2 + leadImage.Width \ 8, leadImage.Height \ 2 + leadImage.Height \ 8)
   leadImage.AddEllipseToRegion(Nothing, rcRect, RasterRegionCombineMode.SetNot)
   Dim command As RegionHolesRemovalCommand = New RegionHolesRemovalCommand
   command.Run(leadImage)
   codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24)

End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
C#Copy Code
public void RegionHolesRemovalCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

      RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"));

      // Prepare the command
      LeadRect rcRect = new LeadRect(image.Width / 8, image.Height / 8, image.Width / 2 + image.Width / 8, image.Height / 2 + image.Height / 8);
      image.AddEllipseToRegion(null, rcRect, RasterRegionCombineMode.SetNot);
      RegionHolesRemovalCommand command = new RegionHolesRemovalCommand();
      command.Run(image);
      codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24);

   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
SilverlightCSharpCopy Code
SilverlightVBCopy Code

Remarks

  • This command is designed to work on images that have a region. It removes the holes from the image's region. If this command is used with an image that does not have a region, the "Invalid Parameter" error is returned.
  • 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 supports 32-bit grayscale images.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.Effects.RegionHolesRemovalCommand

Requirements

Target Platforms: Silverlight 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only)

See Also