Public Function New( _
   ByVal correlationImage As RasterImage, _
   ByVal points() As Point, _
   ByVal xStep As Integer, _
   ByVal yStep As Integer, _
   ByVal threshold As Integer _
)

Visual Basic (Usage)	Copy Code
Dim correlationImage As RasterImage Dim points() As Point Dim xStep As Integer Dim yStep As Integer Dim threshold As Integer   Dim instance As CorrelationCommand(correlationImage, points, xStep, yStep, threshold)

public CorrelationCommand( 
   RasterImage correlationImage,
   Point[] points,
   int xStep,
   int yStep,
   int threshold
)

public:
CorrelationCommand( 
   RasterImage correlationImage,
   array<Point>^ points,
   int xStep,
   int yStep,
   int threshold
)

Parameters

correlationImage

RasterImage object that references the image for which to search.

points

An array of Point structures. This array will be updated with the starting points for the correlated areas.

xStep

Step size in the X direction (along image width), in pixels. For best results, use 1. This parameter only accepts positive values.

yStep

Step size in the Y direction (along image height), in pixels. For best results, use 1. This parameter only accepts positive values.

threshold

Value that indicates the correlation threshold, which is a measure of association required to consider two areas to be correlated. If the correlation value between correlationImage and an area in the image to be searched (the Run method image) is less than the correlation threshold they are uncorrelated. Valid values range from 0 (zero resemblance) to 100 (perfect resemblance).

Run the CorrelationCommand on an image.

Visual Basic

Copy Code

Public Sub CorrelationConstructorExample()    RasterCodecs.Startup()    Dim codecs As New RasterCodecs()    codecs.ThrowExceptionsOnInvalidImages = True    Dim leadImage As RasterImage = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Master.jpg")    ' Prepare the command    Dim points() As System.Drawing.Point    ReDim points(89)    Dim DstImage As RasterImage = leadImage.Clone()    Dim command As CorrelationCommand = New CorrelationCommand(DstImage, points, 1, 1, 70)    ' Apply the correlation filter.    command.Run(leadImage)    MessageBox.Show("The number of points are:" & command.NumberOfPoints.ToString())    RasterCodecs.Shutdown() End Sub

C#

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public void CorrelationConstructorExample()  {     // Load an image     RasterCodecs.Startup();     RasterCodecs codecs = new RasterCodecs();     codecs.ThrowExceptionsOnInvalidImages = true;       RasterImage image = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Master.jpg");       // Prepare the command     RasterImage dstImage = image.Clone();     Point [] points = new Point[90];       CorrelationCommand command = new CorrelationCommand(dstImage, points, 1, 1, 70);     // Apply the correlation filter.     command.Run(image);       MessageBox.Show("The number of points are:" + command.NumberOfPoints.ToString());       RasterCodecs.Shutdown();  }

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

Reference