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MultiscaleEnhancementCommand Class
See Also  Members  
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. Supported in Silverlight, Windows Phone 7

Object Model

MultiscaleEnhancementCommand Class

Syntax

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

Example

Run the Leadtools.ImageProcessing.Core.MultiscaleEnhancementCommand on an image.

Visual BasicCopy Code
Public Sub MultiScaleEnhancementCommandExample()
   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 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)

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 MultiScaleEnhancementCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

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

   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
SilverlightCSharpCopy Code
public void MultiScaleEnhancementCommandExample(RasterImage image, Stream outStream)
{
   // 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);
   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);
   image.Dispose();
}
SilverlightVBCopy Code
Public Sub MultiScaleEnhancementCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' 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(image)
   ' Save result image
   Dim codecs As RasterCodecs = New RasterCodecs()
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24)
   image.Dispose()
End Sub

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 percent ~ 30 percent. The larger the value the stronger the enhancement will be. Any stronger enhancement than 30 percent will reveal noise and no new enhancement will be noticed.
  • The user can further enhance the image with:
  • The edge levels, edge coefficient, latitude levels and latitude coefficient values are available for advanced users. Using -1 would give the maximum enhancements.
  • 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 Changing Brightness and Contrast.

Inheritance Hierarchy

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

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

Reference

MultiscaleEnhancementCommand Members
Leadtools.ImageProcessing.Core Namespace
Changing Brightness and Contrast
Leadtools.ImageProcessing.Color.ChangeContrastCommand
Leadtools.ImageProcessing.Color.ChangeIntensityCommand
Leadtools.ImageProcessing.Color.GammaCorrectCommand
Leadtools.ImageProcessing.Color.StretchIntensityCommand
Leadtools.ImageProcessing.Color.RemapIntensityCommand
Leadtools.ImageProcessing.Color.InvertCommand
Leadtools.ImageProcessing.Color.ChangeHueCommand
Leadtools.ImageProcessing.Color.ChangeSaturationCommand
Leadtools.ImageProcessing.Color.HistogramEqualizeCommand
Leadtools.ImageProcessing.FillCommand
Leadtools.ImageProcessing.Color.HistogramCommand
WindowLevelCommand Class
Leadtools.ImageProcessing.Color.HistogramContrastCommand
Leadtools.ImageProcessing.Color.AddWeightedCommand
Leadtools.ImageProcessing.Color.MultiplyCommand
Leadtools.ImageProcessing.Color.SelectiveColorCommand
Leadtools.ImageProcessing.Color.ChangeHueSaturationIntensityCommand
Leadtools.ImageProcessing.Color.ColorReplaceCommand
Leadtools.ImageProcessing.Color.ColorThresholdCommand
Leadtools.ImageProcessing.Effects.DirectionEdgeStatisticalCommand
FourierTransformDisplayCommand Class
FrequencyFilterCommand Class
FastFourierTransformCommand Class
Leadtools.ImageProcessing.Color.MathematicalFunctionCommand
SubtractBackgroundCommand Class
Leadtools.ImageProcessing.Effects.UserFilterCommand
Leadtools.ImageProcessing.Color.AdaptiveContrastCommand
Leadtools.ImageProcessing.Color.ApplyMathematicalLogicCommand
Leadtools.ImageProcessing.Color.ColorIntensityBalanceCommand
ColorizeGrayCommand Class
Leadtools.ImageProcessing.Color.ContrastBrightnessIntensityCommand
DigitalSubtractCommand Class
Leadtools.ImageProcessing.Color.DynamicBinaryCommand
Leadtools.ImageProcessing.Effects.EdgeDetectEffectCommand
Leadtools.ImageProcessing.SpecialEffects.FunctionalLightCommand
SelectDataCommand Class
ShiftDataCommand Class