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MinimumCommand Class
See Also  Members   Example 
Leadtools.ImageProcessing.Core Namespace : MinimumCommand Class



Dilates dark objects by the specified amount.This command is available in the Document/Medical Toolkits.

Syntax

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

Example

Run the MinimumCommand on an image with a neighborhood Dimensions = 3x3 pixels.

Visual BasicCopy Code
Public Sub MinimumCommandExample()
   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 MinimumCommand = New MinimumCommand
   'Apply the Minimum filter.
   command.Dimension = 3

   command.Run(leadImage)

   RasterCodecs.Shutdown()
End Sub
C#Copy Code
public void MinimumCommandExample() 
{ 
   // 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 
   MinimumCommand command = new MinimumCommand(); 
   //Apply the Minimum filter. 
   command.Dimension = 3; 
   command.Run(image); 
 
   RasterCodecs.Shutdown(); 
}

Remarks

  • This command can process the whole image or a region of the image.
  • The effect can be controlled by specifying the size of the neighborhood that is used for calculating each pixel value. For example, for 8x8, set the Dimension property to 8 or pass 8 for the dimension parameter of the Constructor. Each pixel is replaced with the minimum value of its neighborhood.
  • 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 Removing Noise.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.Core.MinimumCommand

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