itkCorrelationImageToImageMetricv4.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#ifndef __itkCorrelationImageToImageMetricv4_h
#define __itkCorrelationImageToImageMetricv4_h

#include "itkImageToImageMetricv4.h"

#include "itkCorrelationImageToImageMetricv4GetValueAndDerivativeThreader.h"
#include "itkCorrelationImageToImageMetricv4HelperThreader.h"

namespace itk
{

template <typename TFixedImage, typename TMovingImage, typename TVirtualImage = TFixedImage,
          typename TInternalComputationValueType = double,
          typename TMetricTraits = DefaultImageToImageMetricTraitsv4<TFixedImage,TMovingImage,TVirtualImage,TInternalComputationValueType>
          >
class CorrelationImageToImageMetricv4 :
  public ImageToImageMetricv4<TFixedImage, TMovingImage, TVirtualImage, TInternalComputationValueType, TMetricTraits>
{
public:
  typedef CorrelationImageToImageMetricv4                                           Self;
  typedef ImageToImageMetricv4<TFixedImage, TMovingImage, TVirtualImage,
                             TInternalComputationValueType,TMetricTraits>  Superclass;
  typedef SmartPointer<Self>                                                        Pointer;
  typedef SmartPointer<const Self>                                                  ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(CorrelationImageToImageMetricv4, ImageToImageMetricv4);

  typedef typename Superclass::MeasureType             MeasureType;
  typedef typename Superclass::DerivativeType          DerivativeType;

  typedef typename Superclass::FixedImagePointType     FixedImagePointType;
  typedef typename Superclass::FixedImagePixelType     FixedImagePixelType;
  typedef typename Superclass::FixedImageGradientType  FixedImageGradientType;

  typedef typename Superclass::MovingImagePointType    MovingImagePointType;
  typedef typename Superclass::MovingImagePixelType    MovingImagePixelType;
  typedef typename Superclass::MovingImageGradientType MovingImageGradientType;

  typedef typename Superclass::MovingTransformType        MovingTransformType;
  typedef typename Superclass::JacobianType               JacobianType;
  typedef typename Superclass::VirtualImageType           VirtualImageType;
  typedef typename Superclass::VirtualIndexType           VirtualIndexType;
  typedef typename Superclass::VirtualPointType           VirtualPointType;
  typedef typename Superclass::VirtualPointSetType        VirtualPointSetType;

  /* Image dimension accessors */
  itkStaticConstMacro(VirtualImageDimension, ImageDimensionType,
      TVirtualImage::ImageDimension);
  itkStaticConstMacro(FixedImageDimension, ImageDimensionType,
      TFixedImage::ImageDimension);
  itkStaticConstMacro(MovingImageDimension, ImageDimensionType,
      TMovingImage::ImageDimension);

protected:
  CorrelationImageToImageMetricv4();
  virtual ~CorrelationImageToImageMetricv4();

  virtual void InitializeForIteration() const;

  friend class ImageToImageMetricv4GetValueAndDerivativeThreaderBase< ThreadedImageRegionPartitioner< Superclass::VirtualImageDimension >, Self >;
  friend class ImageToImageMetricv4GetValueAndDerivativeThreaderBase< ThreadedIndexedContainerPartitioner, Self >;
  friend class ImageToImageMetricv4GetValueAndDerivativeThreader< ThreadedImageRegionPartitioner< Superclass::VirtualImageDimension >, Self >;
  friend class ImageToImageMetricv4GetValueAndDerivativeThreader< ThreadedIndexedContainerPartitioner, Self >;

  friend class CorrelationImageToImageMetricv4GetValueAndDerivativeThreader< ThreadedImageRegionPartitioner< Superclass::VirtualImageDimension >, Superclass, Self >;
  friend class CorrelationImageToImageMetricv4GetValueAndDerivativeThreader< ThreadedIndexedContainerPartitioner, Superclass, Self >;
  typedef CorrelationImageToImageMetricv4GetValueAndDerivativeThreader< ThreadedImageRegionPartitioner< Superclass::VirtualImageDimension >, Superclass, Self >
    CorrelationDenseGetValueAndDerivativeThreaderType;
  typedef CorrelationImageToImageMetricv4GetValueAndDerivativeThreader< ThreadedIndexedContainerPartitioner, Superclass, Self >
    CorrelationSparseGetValueAndDerivativeThreaderType;

  friend class CorrelationImageToImageMetricv4HelperThreader< ThreadedImageRegionPartitioner< Superclass::VirtualImageDimension >, Superclass, Self >;
  friend class CorrelationImageToImageMetricv4HelperThreader< ThreadedIndexedContainerPartitioner, Superclass, Self >;

  typedef CorrelationImageToImageMetricv4HelperThreader< ThreadedImageRegionPartitioner< Superclass::VirtualImageDimension >, Superclass, Self >
    CorrelationHelperDenseThreaderType;
  typedef CorrelationImageToImageMetricv4HelperThreader< ThreadedIndexedContainerPartitioner, Superclass, Self >
    CorrelationHelperSparseThreaderType;

  typename CorrelationHelperDenseThreaderType::Pointer  m_HelperDenseThreader;
  typename CorrelationHelperSparseThreaderType::Pointer m_HelperSparseThreader;

  /* These values are computed during InitializeForIteration(),
   * using the helper class
   * */
  mutable MeasureType m_AverageFix;
  mutable MeasureType m_AverageMov;

  void PrintSelf(std::ostream& os, Indent indent) const;

private:
  CorrelationImageToImageMetricv4(const Self &); //purposely not implemented
  void operator = (const Self &); //purposely not implemented
};

} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkCorrelationImageToImageMetricv4.hxx"
#endif

#endif