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NumberOfPoints Property (CorrelationCommand)

Summary

This property is updated with the number of areas in the image actually found to be correlated to the correlation image.

Syntax

Java

Objective-C

WinRT C#

C++

public int NumberOfPoints {get;}

Public ReadOnly Property NumberOfPoints As Integer

public int NumberOfPoints {get;}

@property (nonatomic, assign, readonly) NSUInteger numberOfPoints

public int getNumberOfPoints()

get_NumberOfPoints();

public: 
property int NumberOfPoints { 
   int get(); 
}

Property Value

Value that indicates the number of areas in the image actually found to be correlated to the correlation image. Its maximum value is the length of the Points array.

Example

Run the CorrelationCommand on an image.

WinRT C#

Silverlight C#

Silverlight VB

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
 
    
Public Sub NumberOfPointsPropertyExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "clean.tif")) 
 
   ' Prepare the command 
   Dim points() As LeadPoint 
   ReDim points(89) 
 
   Dim DstImage As RasterImage = leadImage.Clone() 
   Dim command As CorrelationCommand = New CorrelationCommand 
   command.CorrelationImage = DstImage 
   command.Threshold = 70 
   command.XStep = 1 
   command.YStep = 1 
   command.Points = points 
   ' Apply the correlation filter. 
   command.Run(leadImage) 
 
   MessageBox.Show("The number of points are:" & command.NumberOfPoints.ToString()) 
 
End Sub 
 
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.Core; 
 
       
public void NumberOfPointsPropertyExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "clean.tif")); 
 
   // Prepare the command 
   RasterImage dstImage = image.Clone(); 
   CorrelationCommand command = new CorrelationCommand(); 
   command.CorrelationImage = dstImage; 
   command.Threshold = 70; 
   command.XStep = 1; 
   command.YStep = 1; 
   command.Points = new LeadPoint[90]; 
   // Apply the correlation filter. 
   command.Run(image); 
 
   MessageBox.Show("The number of points are:" + command.NumberOfPoints.ToString()); 
 
} 
 
static class LEAD_VARS 
{ 
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
}

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
       
public async Task NumberOfPointsPropertyExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
   // Load the image 
   string srcFileName = @"Assets\Image1.cmp"; 
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName); 
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile)); 
 
   // Prepare the command 
   RasterImage dstImage = image.Clone(); 
   CorrelationCommand command = new CorrelationCommand(); 
   command.CorrelationImage = dstImage; 
   command.Threshold = 70; 
   command.XStep = 1; 
   command.YStep = 1; 
   command.Points = new LeadPoint[90]; 
   // Apply the correlation filter. 
   command.Run(image); 
 
   Debug.WriteLine("The number of points are:" + command.NumberOfPoints.ToString()); 
 
}

using Leadtools; 
using Leadtools.Examples; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void NumberOfPointsPropertyExample(RasterImage image, Stream outStream) 
{ 
   // Prepare the command 
   RasterImage dstImage = image.Clone(); 
   CorrelationCommand command = new CorrelationCommand(); 
   command.CorrelationImage = dstImage; 
   command.Threshold = 70; 
   command.XStep = 1; 
   command.YStep = 1; 
   command.Points = new LeadPoint[90]; 
   // Apply the correlation filter. 
   command.Run(image); 
   Debug.WriteLine("The number of points are:" + command.NumberOfPoints.ToString()); 
 
   // 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 NumberOfPointsPropertyExample(ByVal image As RasterImage, ByVal outStream As Stream) 
   ' Prepare the command 
   Dim dstImage As RasterImage = image.Clone() 
   Dim command As CorrelationCommand = New CorrelationCommand() 
   command.CorrelationImage = dstImage 
   command.Threshold = 70 
   command.XStep = 1 
   command.YStep = 1 
   command.Points = New LeadPoint(89){} 
   ' Apply the correlation filter. 
   command.Run(image) 
   Debug.WriteLine("The number of points are:" & command.NumberOfPoints.ToString()) 
 
   ' Save result image 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24) 
   image.Dispose() 
End Sub