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itkCorrelationCoefficientHistogramImageToImageMetric.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkCorrelationCoefficientHistogramImageToImageMetric.h,v $
00005   Language:  C++
00006   Date:      $Date: 2003/09/10 14:28:29 $
00007   Version:   $Revision: 1.3 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even 
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 #ifndef __itkCorrelationCoefficientHistogramImageToImageMetric_h
00018 #define __itkCorrelationCoefficientHistogramImageToImageMetric_h
00019 
00020 #include "itkHistogramImageToImageMetric.h"
00021 
00022 namespace itk
00023 {
00035 template <class TFixedImage, class TMovingImage>
00036 class ITK_EXPORT CorrelationCoefficientHistogramImageToImageMetric :
00037 public HistogramImageToImageMetric<TFixedImage, TMovingImage>
00038 {
00039  public:
00041   typedef CorrelationCoefficientHistogramImageToImageMetric Self;
00042   typedef HistogramImageToImageMetric<TFixedImage, TMovingImage> Superclass;
00043   typedef SmartPointer<Self> Pointer;
00044   typedef SmartPointer<const Self> ConstPointer;
00045 
00047   itkNewMacro(Self);
00048 
00050   itkTypeMacro(CorrelationCoefficientHistogramImageToImageMetric,
00051     HistogramImageToImageMetric);
00052 
00054   typedef typename Superclass::RealType RealType;
00055   typedef typename Superclass::TransformType TransformType;
00056   typedef typename Superclass::TransformPointer TransformPointer;
00057   typedef typename Superclass::TransformParametersType TransformParametersType;
00058   typedef typename Superclass::TransformJacobianType TransformJacobianType;
00059   typedef typename Superclass::GradientPixelType GradientPixelType;
00060 
00061   typedef typename Superclass::MeasureType MeasureType;
00062   typedef typename Superclass::DerivativeType DerivativeType;
00063   typedef typename Superclass::FixedImageType FixedImageType;
00064   typedef typename Superclass::MovingImageType MovingImageType;
00065   typedef typename Superclass::FixedImageConstPointer FixedImageConstPointer;
00066   typedef typename Superclass::MovingImageConstPointer MovingImageConstPointer;
00067 
00068   typedef typename Superclass::HistogramType HistogramType;
00069   typedef typename HistogramType::FrequencyType HistogramFrequencyType;
00070   typedef typename HistogramType::Iterator HistogramIteratorType;
00071   typedef typename HistogramType::MeasurementVectorType
00072     HistogramMeasurementVectorType;
00073 
00074 protected:
00077   CorrelationCoefficientHistogramImageToImageMetric(){}
00078   virtual ~CorrelationCoefficientHistogramImageToImageMetric(){}
00079   
00081   virtual MeasureType EvaluateMeasure(HistogramType& histogram) const;
00082 
00083 private:
00085   MeasureType MeanX(HistogramType& histogram) const;
00086 
00088   MeasureType MeanY(HistogramType& histogram) const;
00089 
00091   MeasureType VarianceX(HistogramType& histogram) const;
00092 
00094   MeasureType VarianceY(HistogramType& histogram) const;
00095 
00097   MeasureType Covariance(HistogramType& histogram) const;
00098 
00099   // Purposely not implemented.
00100   CorrelationCoefficientHistogramImageToImageMetric(Self const&); 
00101   void operator=(Self const&); // Purposely not implemented.
00102 };
00103 
00104 } // End namespace itk.
00105 
00106 #ifndef ITK_MANUAL_INSTANTIATION
00107 #include "itkCorrelationCoefficientHistogramImageToImageMetric.txx"
00108 #endif
00109 
00110 #endif // __itkCorrelationCoefficientHistogramImageToImageMetric_h

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