LEADTOOLS Image Processing (Leadtools.ImageProcessing.Core assembly) Send comments on this topic. | Back to Introduction - All Topics | Help Version 17.0.3.29
NumberOfPoints Property
See Also 
Leadtools.ImageProcessing.Core Namespace > CorrelationCommand Class : NumberOfPoints Property



This property is updated with the number of areas in the image actually found to be correlated to the correlation image. Supported in Silverlight, Windows Phone 7

Syntax

Visual Basic (Declaration) 
Public ReadOnly Property NumberOfPoints As Integer
Visual Basic (Usage)Copy Code
Dim instance As CorrelationCommand
Dim value As Integer
 
value = instance.NumberOfPoints
C# 
public int NumberOfPoints {get;}
C++/CLI 
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.

Visual BasicCopy Code
Public Sub NumberOfPointsPropertyExample()
   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 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
C#Copy Code
public void NumberOfPointsPropertyExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

      RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"));

      // 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";
}
SilverlightCSharpCopy Code
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();
}
SilverlightVBCopy Code
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

Requirements

Target Platforms: Silverlight 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only)

See Also