IntensityDetectEffect Class

Applies binary segmentation to an image by filtering the specified image to detect colors in a specified intensity range.

Object Model

Syntax

Visual Basic
C#
Objective-C
Java
C++

public class IntensityDetectEffect : System.Windows.Media.Effects.ShaderEffect, System.Windows.Media.Animation.IAnimatable

'Declaration
 
Public Class IntensityDetectEffect 
   Inherits System.Windows.Media.Effects.ShaderEffect
   Implements System.Windows.Media.Animation.IAnimatable

'Usage
 
Dim instance As IntensityDetectEffect

public ref class IntensityDetectEffect : public System.Windows.Media.Effects.ShaderEffect, System.Windows.Media.Animation.IAnimatable

Remarks

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.

Example

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.Windows.Controls
Imports Leadtools.Windows.Media
Imports Leadtools.Windows.Media.Effects

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

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.Windows.Controls;
using Leadtools.Windows.Media;
using Leadtools.Windows.Media.Effects;

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";
}

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.Windows.Media;
using Leadtools.Windows.Media.Effects;
using Leadtools.Windows.Controls;

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);
   }
}

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.Windows.Controls
Imports Leadtools.Windows.Media
Imports Leadtools.Windows.Media.Effects

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

<Window x:Class="IntensityDetectEffectExample"
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"
Height="600" Width="800">
   <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>

Requirements

Target Platforms

Reference

IntensityDetectEffect Members
Leadtools.Windows.Media.Effects Namespace
Introduction