The IntensityDetectEffect Class supports WPF/Silverlight.
Applies binary segmentation to an image by filtering the specified image to detect colors in a specified intensity range. Supported in Silverlight![](dotnetdiagramimages/Leadtools_Windows_Media_Effects_Leadtools_Windows_Media_Effects_IntensityDetectEffect.png)
Visual Basic (Declaration) | |
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Public Class IntensityDetectEffect Inherits System.Windows.Media.Effects.ShaderEffect Implements IAnimatable |
Visual Basic (Usage) | ![]() |
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Dim instance As IntensityDetectEffect |
C# | |
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public class IntensityDetectEffect : System.Windows.Media.Effects.ShaderEffect, IAnimatable |
C++/CLI | |
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public ref class IntensityDetectEffect : public System.Windows.Media.Effects.ShaderEffect, IAnimatable |
Visual Basic | ![]() |
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Class IntensityDetectEffectExampleWindow Inherits Window Public Sub New() Dim sp As New StackPanel() Content = sp Dim theViewer As New ImageViewer() theViewer.HorizontalAlignment = HorizontalAlignment.Center theViewer.VerticalAlignment = VerticalAlignment.Top theViewer.ImageHorizontalAlignment = HorizontalAlignment.Left theViewer.ImageVerticalAlignment = VerticalAlignment.Top sp.Children.Add(theViewer) ' Create the sliders Dim tb As New TextBlock() tb.HorizontalAlignment = HorizontalAlignment.Center tb.Text = "Intensity:" sp.Children.Add(tb) Dim theSlider As New Slider() theSlider.Minimum = 0.0 theSlider.Maximum = 256.0 theSlider.Width = 400 theSlider.Orientation = Orientation.Horizontal theSlider.IsSnapToTickEnabled = True theSlider.TickPlacement = System.Windows.Controls.Primitives.TickPlacement.BottomRight theSlider.TickFrequency = 0.1 theSlider.AutoToolTipPrecision = 2 theSlider.AutoToolTipPlacement = System.Windows.Controls.Primitives.AutoToolTipPlacement.BottomRight sp.Children.Add(theSlider) ' Load an image into the viewer theViewer.Source = New BitmapImage(New Uri(System.IO.Path.Combine(LEAD_VARS.ImagesDir, "Cannon.jpg"))) ' Create the effect Dim effect As New IntensityDetectEffect() effect.Intensity = 128.5 theViewer.ImageEffect = effect ' Bind the properties Dim bind As New Binding() bind.Source = effect bind.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged bind.Path = New PropertyPath("Intensity") theSlider.SetBinding(Slider.ValueProperty, bind) Title = "Using IntensityDetectEffect" End Sub End Class Public NotInheritable Class LEAD_VARS Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" End Class |
C# | ![]() |
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class IntensityDetectEffectExampleWindow : Window { public IntensityDetectEffectExampleWindow() { StackPanel sp = new StackPanel(); Content = sp; ImageViewer theViewer = new ImageViewer(); theViewer.HorizontalAlignment = HorizontalAlignment.Center; theViewer.VerticalAlignment = VerticalAlignment.Top; theViewer.ImageHorizontalAlignment = HorizontalAlignment.Left; theViewer.ImageVerticalAlignment = VerticalAlignment.Top; sp.Children.Add(theViewer); // Create the sliders TextBlock tb = new TextBlock(); tb.HorizontalAlignment = HorizontalAlignment.Center; tb.Text = "Intensity:"; sp.Children.Add(tb); Slider theSlider = new Slider(); theSlider.Minimum = 0.0; theSlider.Maximum = 256.0; theSlider.Width = 400; theSlider.Orientation = Orientation.Horizontal; theSlider.IsSnapToTickEnabled = true; theSlider.TickPlacement = System.Windows.Controls.Primitives.TickPlacement.BottomRight; theSlider.TickFrequency = 0.1; theSlider.AutoToolTipPrecision = 2; theSlider.AutoToolTipPlacement = System.Windows.Controls.Primitives.AutoToolTipPlacement.BottomRight; sp.Children.Add(theSlider); // Load an image into the viewer theViewer.Source = new BitmapImage(new Uri(System.IO.Path.Combine(LEAD_VARS.ImagesDir, "Cannon.jpg"))); // Create the effect IntensityDetectEffect effect = new IntensityDetectEffect(); effect.Intensity = 128.5; theViewer.ImageEffect = effect; // Bind the properties Binding bind = new Binding(); bind.Source = effect; bind.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged; bind.Path = new PropertyPath("Intensity"); theSlider.SetBinding(Slider.ValueProperty, bind); Title = "Using IntensityDetectEffect"; } } static class LEAD_VARS { public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; } |
SilverlightCSharp | ![]() |
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class IntensityDetectEffectExampleWindow : UserControl { public IntensityDetectEffectExampleWindow() { StackPanel sp = new StackPanel(); Content = sp; ImageViewer theViewer = new ImageViewer(); theViewer.HorizontalAlignment = HorizontalAlignment.Center; theViewer.VerticalAlignment = VerticalAlignment.Top; theViewer.ImageHorizontalAlignment = HorizontalAlignment.Left; theViewer.ImageVerticalAlignment = VerticalAlignment.Top; sp.Children.Add(theViewer); // Create the sliders TextBlock tb = new TextBlock(); tb.HorizontalAlignment = HorizontalAlignment.Center; tb.Text = "Intensity:"; sp.Children.Add(tb); Slider theSlider = new Slider(); theSlider.Minimum = 0.0; theSlider.Maximum = 256.0; theSlider.Width = 400; theSlider.Orientation = Orientation.Horizontal; sp.Children.Add(theSlider); // Load an image into the viewer theViewer.Source = new BitmapImage(new Uri(LeadtoolsExamples.Common.ImagesPath.Path + "Cannon.jpg")); // Create the effect IntensityDetectEffect effect = new IntensityDetectEffect(); effect.Intensity = 128.5; theViewer.ImageEffect = effect; // Bind the properties Binding bind = new Binding(); bind.Source = effect; bind.UpdateSourceTrigger = UpdateSourceTrigger.Default; bind.Path = new PropertyPath("Intensity"); theSlider.SetBinding(Slider.ValueProperty, bind); } } |
SilverlightVB | ![]() |
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Class IntensityDetectEffectExampleWindow Inherits UserControl Public Sub New() Dim sp As New StackPanel() Content = sp Dim theViewer As New ImageViewer() theViewer.HorizontalAlignment = HorizontalAlignment.Center theViewer.VerticalAlignment = VerticalAlignment.Top theViewer.ImageHorizontalAlignment = HorizontalAlignment.Left theViewer.ImageVerticalAlignment = VerticalAlignment.Top sp.Children.Add(theViewer) ' Create the sliders Dim tb As New TextBlock() tb.HorizontalAlignment = HorizontalAlignment.Center tb.Text = "Intensity:" sp.Children.Add(tb) Dim theSlider As New Slider() theSlider.Minimum = 0.0 theSlider.Maximum = 256.0 theSlider.Width = 400 theSlider.Orientation = Orientation.Horizontal sp.Children.Add(theSlider) ' Load an image into the viewer theViewer.Source = New BitmapImage(New Uri(LeadtoolsExamples.Common.ImagesPath.Path + "Cannon.jpg")) ' Create the effect Dim effect As New IntensityDetectEffect() effect.Intensity = 128.5 theViewer.ImageEffect = effect ' Bind the properties Dim bind As New Binding() bind.Source = effect bind.UpdateSourceTrigger = UpdateSourceTrigger.Default bind.Path = New PropertyPath("Intensity") theSlider.SetBinding(Slider.ValueProperty, bind) End Sub End Class |
XAML | ![]() |
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<Window x:Class="IntensityDetectEffectExample" Height="600" Width="800" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:leadControls="clr-namespace:Leadtools.Windows.Controls;assembly=Leadtools.Windows.Controls" xmlns:leadEffects="clr-namespace:Leadtools.Windows.Media.Effects;assembly=Leadtools.Windows.Media.Effects"> <StackPanel> <leadControls:ImageViewer HorizontalAlignment="Center" VerticalAlignment="Top" ImageHorizontalAlignment="Left" ImageVerticalAlignment="Top" Source="file:///c:\users\Public\Documents\LEADTOOLS Images\cannon.jpg"> <leadControls:ImageViewer.ImageEffect> <leadEffects:IntensityDetectEffect Intensity="{Binding Value, ElementName=IntensitySlider, UpdateSourceTrigger=PropertyChanged}"></leadEffects:IntensityDetectEffect> </leadControls:ImageViewer.ImageEffect> </leadControls:ImageViewer> <TextBlock HorizontalAlignment="Center" Text="Intensity:" /> <Slider x:Name="IntensitySlider" Minimum="0.0" Maximum="256.0" TickFrequency="10" Width="400" Orientation="Horizontal" IsSnapToTickEnabled="True" TickPlacement="BottomRight" AutoToolTipPrecision="2" AutoToolTipPlacement="BottomRight"></Slider> </StackPanel> </Window> |
This effect converts the image to a black and white, based on the threshold Intensity. Values less than Intensity are set to black while values larger than Intensity are set to white.
System.Object
System.Windows.Threading.DispatcherObject
System.Windows.DependencyObject
System.Windows.Freezable
System.Windows.Media.Animation.Animatable
System.Windows.Media.Effects.Effect
System.Windows.Media.Effects.ShaderEffect
Leadtools.Windows.Media.Effects.IntensityDetectEffect
Target Platforms: Silverlight 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only)