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CurveType Enumeration

Summary
Options to specify how the range is used to fill the LUT and the type of LUT.
Syntax
C#
C++/CLI
public enum CurveType 
public enum class CurveType : public System.Enum, System.IComparable, System.IConvertible, System.IFormattable   
Members
ValueMemberDescription
0Linear

LUT is leaner

1Logarithmic

LUT is logarithmic.

2Exponential

LUT is exponential.

3Sigmoid

LUT is sigmoid.

Remarks

This enumeration is used as the type for the WindowLevelEffect.CurveType property.

Example
C#
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.Windows.Controls; 
using Leadtools.Windows.Media; 
using Leadtools.Windows.Media.Effects; 
 
class WindowLevelEffectExampleWindow : Window 
{ 
   public WindowLevelEffectExampleWindow() 
   { 
      StackPanel sp = new StackPanel(); 
      Content = sp; 
 
      RasterImageViewer theViewer = new RasterImageViewer(); 
 
      theViewer.HorizontalAlignment = HorizontalAlignment.Center; 
      theViewer.VerticalAlignment = VerticalAlignment.Top; 
      theViewer.ImageHorizontalAlignment = HorizontalAlignment.Left; 
      theViewer.ImageVerticalAlignment = VerticalAlignment.Top; 
 
      sp.Children.Add(theViewer); 
 
      // Load an image into the viewer 
      using (RasterCodecs codecs = new RasterCodecs()) 
      { 
         theViewer.Image = codecs.Load(System.IO.Path.Combine(LEAD_VARS.ImagesDir, "Image3.dcm")); 
      } 
 
      // Create the sliders 
      TextBlock tb = new TextBlock(); 
      tb.HorizontalAlignment = HorizontalAlignment.Center; 
      tb.Text = "Window Width:"; 
      sp.Children.Add(tb); 
 
      Slider windowWidthSlider = new Slider(); 
      windowWidthSlider.Minimum = 0.0; 
      windowWidthSlider.Maximum = Math.Pow(2, theViewer.Image.BitsPerPixel - 1); 
      windowWidthSlider.Width = 400; 
      windowWidthSlider.Orientation = Orientation.Horizontal; 
      windowWidthSlider.IsSnapToTickEnabled = true; 
      windowWidthSlider.TickPlacement = System.Windows.Controls.Primitives.TickPlacement.BottomRight; 
      windowWidthSlider.TickFrequency = 0.1; 
      windowWidthSlider.AutoToolTipPrecision = 2; 
      windowWidthSlider.AutoToolTipPlacement = System.Windows.Controls.Primitives.AutoToolTipPlacement.BottomRight; 
 
      sp.Children.Add(windowWidthSlider); 
 
      tb = new TextBlock(); 
      tb.HorizontalAlignment = HorizontalAlignment.Center; 
      tb.Text = "Window Center:"; 
      sp.Children.Add(tb); 
 
      Slider windowCenterSlider = new Slider(); 
      windowCenterSlider.Minimum = 0.0; 
      windowCenterSlider.Maximum = Math.Pow(2, theViewer.Image.BitsPerPixel - 1); 
      windowCenterSlider.Width = 400; 
      windowCenterSlider.Orientation = Orientation.Horizontal; 
      windowCenterSlider.IsSnapToTickEnabled = true; 
      windowCenterSlider.TickPlacement = System.Windows.Controls.Primitives.TickPlacement.BottomRight; 
      windowCenterSlider.TickFrequency = 0.1; 
      windowCenterSlider.AutoToolTipPrecision = 2; 
      windowCenterSlider.AutoToolTipPlacement = System.Windows.Controls.Primitives.AutoToolTipPlacement.BottomRight; 
 
      sp.Children.Add(windowCenterSlider); 
 
      // Setup the effect 
      WindowLevelEffect effect = new WindowLevelEffect(); 
 
      // Set the texture 
      effect.FillGrayTexture(theViewer.Image); 
      effect.Start = Colors.Black; 
      effect.End = Colors.White; 
      effect.CurveType = CurveType.Linear; 
      effect.Factor = 0.0; 
 
      effect.WindowWidth = Math.Pow(2, theViewer.Image.MaxValue - theViewer.Image.MinValue); 
      effect.WindowCenter = effect.WindowWidth / 2; 
 
      theViewer.ImageEffect = effect; 
 
      // Bind the properties 
      Binding bind = new Binding(); 
      bind.Source = effect; 
      bind.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged; 
      bind.Path = new PropertyPath("WindowWidth"); 
      windowWidthSlider.SetBinding(Slider.ValueProperty, bind); 
 
      bind = new Binding(); 
      bind.Source = effect; 
      bind.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged; 
      bind.Path = new PropertyPath("WindowCenter"); 
      windowCenterSlider.SetBinding(Slider.ValueProperty, bind); 
 
      Title = "Using WindowLevelEffect"; 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
} 
Requirements

Target Platforms

Help Version 22.0.2023.2.2
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.

Leadtools.Windows.Media.Effects Assembly
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.