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MultiscaleEnhancementCommand Class

Summary

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

C#
VB
Java
Objective-C
WinRT C#
C++
public class MultiscaleEnhancementCommand : RasterCommand 
public sealed class MultiscaleEnhancementCommand : Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommand   
@interface LTMultiscaleEnhancementCommand : LTRasterCommand 
public class MultiscaleEnhancementCommand extends RasterCommand 
function Leadtools.ImageProcessing.Core.MultiscaleEnhancementCommand() 

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.

Example

Run the MultiscaleEnhancementCommand on an image.

C#
VB
Silverlight C#
Silverlight VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
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"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
      Leadtools.Examples.Support.SetLicense() 
 
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 
using Leadtools; 
using Leadtools.Examples; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
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(); 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
 
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 

Requirements

Target Platforms

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

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Leadtools.ImageProcessing.Core Assembly