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CorrelationListCommand Constructor(RasterImage,LeadPoint[],int[],int,int,int)

Summary

Initializes a new CorrelationListCommand with explicit parameters.

Syntax
C#
VB
Java
Objective-C
C++
Public Function New( _ 
   ByVal correlationImage As RasterImage, _ 
   ByVal points() As LeadPoint, _ 
   ByVal listIndex() As Integer, _ 
   ByVal xStep As Integer, _ 
   ByVal yStep As Integer, _ 
   ByVal threshold As Integer _ 
) 
- (instancetype)initWithCorrelationImage:(LTRasterImage *)correlationImage 
                                  points:(LeadPoint *)points 
                               listIndex:(NSUInteger *)listIndex 
                             pointsCount:(NSUInteger)pointsCount 
                                   xStep:(NSUInteger)xStep 
                                   yStep:(NSUInteger)yStep 
                               threshold:(NSUInteger)threshold 
public CorrelationListCommand( 
   RasterImage correlationImage,  
   LeadPoint[] points,  
   int[] listIndex,  
   int xStep,  
   int yStep,  
   int threshold 
) 
public: 
CorrelationListCommand(  
   RasterImage^ correlationImage, 
   array<LeadPoint>^ points, 
   array<int>^ listIndex, 
   int xStep, 
   int yStep, 
   int threshold 
) 

Parameters

correlationImage
RasterImage object that references the image(s) for which to search.

points
Array of LeadPoint objects to be updated with the starting points of the correlated areas.

listIndex
Array of integers to be updated with the indices of the images that match correlated areas.

xStep
Step size in the X direction (along image width), in pixels. For best results, use 1.

yStep
Step size in the Y direction (along image height), in pixels. For best results, use 1.

threshold
Value that indicates the correlation threshold, which is a measure of the association necessary for two areas to be considered to be correlated. If the correlation value between an image in the list and an area in the reference image is less than the correlation threshold they are uncorrelated. Valid values range from 0 (zero resemblance) to 100 (perfect resemblance).

Example

Run the CorrelationListCommand on an image

C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Core; 
 
public void CorrelationListConstructorExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "clean.tif")); 
 
   CopyRectangleCommand copyRectangle = new CopyRectangleCommand(); 
 
   LeadRect rc_cor = new LeadRect(327, 378, 22, 28); 
   copyRectangle.Rectangle = rc_cor; 
   copyRectangle.Run(image); 
   RasterImage correlationImage = copyRectangle.DestinationImage.Clone(); 
 
   rc_cor = new LeadRect(283, 378, 22, 28); 
   copyRectangle.Rectangle = rc_cor; 
   copyRectangle.Run(image); 
   correlationImage.AddPage(copyRectangle.DestinationImage.Clone()); 
 
   LeadPoint[] points = new LeadPoint[30]; 
   int[] listIndex = new int[30]; 
 
   CorrelationListCommand command = new CorrelationListCommand(correlationImage, points, listIndex, 1, 1, 90); 
   command.Run(image); 
 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing 
Imports Leadtools.ImageProcessing.Core 
 
Public Sub CorrelationListConstructorExample() 
   ' Load an image 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim image As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "clean.tif")) 
 
   Dim copyRectangle As CopyRectangleCommand = New CopyRectangleCommand() 
 
   Dim rc_cor As LeadRect = New LeadRect(327, 378, 22, 28) 
   copyRectangle.Rectangle = rc_cor 
   copyRectangle.Run(image) 
   Dim correlationImage As RasterImage = copyRectangle.DestinationImage.Clone() 
 
   rc_cor = New LeadRect(283, 378, 22, 28) 
   copyRectangle.Rectangle = rc_cor 
   copyRectangle.Run(image) 
   correlationImage.AddPage(copyRectangle.DestinationImage.Clone()) 
 
   Dim points(30) As LeadPoint 
   Dim listIndex(30) As Integer 
 
   Dim command As CorrelationListCommand = New CorrelationListCommand(correlationImage, points, listIndex, 1, 1, 90) 
   command.Run(image) 
 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class 
c#[Silverlight C# Example] 
using Leadtools; 
using Leadtools.ImageProcessing; 
using Leadtools.Examples; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void CorrelationListConstructorExample(RasterImage image, Stream outStream) 
{ 
   CopyRectangleCommand copyRectangle = new CopyRectangleCommand(); 
 
   LeadRect rc_cor = new LeadRect(327, 378, 22, 28); 
   copyRectangle.Rectangle = rc_cor; 
   copyRectangle.Run(image); 
   RasterImage correlationImage = copyRectangle.DestinationImage.Clone(); 
 
   rc_cor = new LeadRect(283, 378, 22, 28); 
   copyRectangle.Rectangle = rc_cor; 
   copyRectangle.Run(image); 
   correlationImage.AddPage(copyRectangle.DestinationImage.Clone()); 
 
   LeadPoint[] points = new LeadPoint[30]; 
   int[] listIndex = new int[30]; 
 
   CorrelationListCommand command = new CorrelationListCommand(correlationImage, points, listIndex, 1, 1, 90); 
   command.Run(image); 
 
   // Save result image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24); 
   image.Dispose(); 
} 
vb[Silverlight VB Example] 
Imports Leadtools 
Imports Leadtools.ImageProcessing 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
 
Public Sub CorrelationListConstructorExample(ByVal image As RasterImage, ByVal outStream As Stream) 
   Dim copyRectangle As CopyRectangleCommand = New CopyRectangleCommand() 
 
   Dim rc_cor As LeadRect = New LeadRect(327, 378, 22, 28) 
   copyRectangle.Rectangle = rc_cor 
   copyRectangle.Run(image) 
   Dim correlationImage As RasterImage = copyRectangle.DestinationImage.Clone() 
 
   rc_cor = New LeadRect(283, 378, 22, 28) 
   copyRectangle.Rectangle = rc_cor 
   copyRectangle.Run(image) 
   correlationImage.AddPage(copyRectangle.DestinationImage.Clone()) 
 
   Dim points As LeadPoint() = New LeadPoint(29) {} 
   Dim listIndex As Integer() = New Integer(29) {} 
 
   Dim command As CorrelationListCommand = New CorrelationListCommand(correlationImage, points, listIndex, 1, 1, 90) 
   command.Run(image) 
 
   ' Save result image 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24) 
   image.Dispose() 
End Sub 

Requirements

Target Platforms

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Leadtools.ImageProcessing.Core Assembly