Initializes a new
CorrelationCommand class object with explicit parameters.
Syntax
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).
Example
Run the CorrelationCommand on an image.
Visual Basic | Copy Code |
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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")
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)
command.Run(leadImage)
MessageBox.Show("The number of points are:" & command.NumberOfPoints.ToString())
RasterCodecs.Shutdown()
End Sub |
C# | Copy Code |
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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(); } |
Requirements
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
See Also