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



Enhances an image's contrast, edges, and density range for use in Computed Radiography (CR), in a way that all relevant image features are rendered with an appropriate level of visibility. This command is available in the Medical toolkits.

Syntax

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

Example

Run the MultiscaleEnhancementCommand on an image.

Visual BasicCopy Code
Public Sub MultiScaleEnhancementCommandExample()
   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 MultiscaleEnhancementCommand = New MultiscaleEnhancementCommand
   command.Contrast = 2000
   command.EdgeLevels = 4
   command.EdgeCoefficient = -1
   command.LatitudeLevels = 0
   command.LatitudeCoefficient = 0
   command.Type = MultiscaleEnhancementCommandType.Gaussian
   command.Flags = MultiscaleEnhancementCommandFlags.EdgeEnhancement
   ' Apply multiscale enhancement
   command.Run(leadImage)

   RasterCodecs.Shutdown()
End Sub
C#Copy Code
public void MultiScaleEnhancementCommandExample() 
{ 
   // 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 
   MultiscaleEnhancementCommand command = new MultiscaleEnhancementCommand(); 
   command.Contrast = 2000; 
   command.EdgeLevels = 4; 
   command.EdgeCoefficient = -1; 
   command.LatitudeLevels = 0; 
   command.LatitudeCoefficient = 0; 
   command.Type = MultiscaleEnhancementCommandType.Gaussian; 
   command.Flags = MultiscaleEnhancementCommandFlags.EdgeEnhancement; 
   // Apply multiscale enhancement 
   command.Run(image); 
 
   RasterCodecs.Shutdown(); 
}

Remarks

  • The command wraps techniques of image enhancements, such as contrast enhancement, edge enhancement and latitude reduction, for Computed Radiography (CR).
  • In multi scale enhancement, the image is decomposed into components or levels. Those components or levels that contain details will be enhanced separately from other components or levels.
  • This will improve the visualization for the subtle image features without the risk of losing information of other features.
  • To find the number of levels in any image follow this equation:
  • MaximumLevels = ceil( log( max(pimage->Width, pimage->Height)) / log(2));
  • The command will consider values larger than 10000 for contrast as 10000. If the user used a contrast of 0, then image contrast will not be improved.
  • Best results are obtained if contrast is in the range of 15 ~ 30. The larger the value the stronger the enhancement will be. Any stronger enhancement than 30 will reveal noise and no new enhancement will be noticed.
  • The user can further enhance the image withT:Leadtools.ImageProcessing.Core.MultiscaleEnhancementCommandFlagsEdgeEnhancement) and/or
  • latitude reduction T:Leadtools.ImageProcessing.Core.MultiscaleEnhancementCommandFlags Support for 12 and 16-bit grayscale and 48 and 64-bit color images is available only in the Document/Medical:T:Leadtools.Topics.RasterProDocMed
For more information, refer to Changing Brightness and Contrast:T:Leadtools.Topics.ChangingBrightnessAndContrast%.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.Core.MultiscaleEnhancementCommand

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