itkExponentialDisplacementFieldImageFilter.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 __itkExponentialDisplacementFieldImageFilter_h
#define __itkExponentialDisplacementFieldImageFilter_h

#include "itkDivideImageFilter.h"
#include "itkCastImageFilter.h"
#include "itkWarpVectorImageFilter.h"
#include "itkVectorLinearInterpolateNearestNeighborExtrapolateImageFunction.h"
#include "itkAddImageFilter.h"

namespace itk
{
template< class TInputImage, class TOutputImage >
class ITK_EXPORT ExponentialDisplacementFieldImageFilter:
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
  typedef ExponentialDisplacementFieldImageFilter         Self;
  typedef ImageToImageFilter< TInputImage, TOutputImage > Superclass;
  typedef SmartPointer< Self >                            Pointer;
  typedef SmartPointer< const Self >                      ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(ExponentialDisplacementFieldImageFilter, ImageToImageFilter);

  typedef TInputImage                            InputImageType;
  typedef typename InputImageType::Pointer       InputImagePointer;
  typedef typename InputImageType::ConstPointer  InputImageConstPointer;
  typedef typename InputImageType::PixelType     InputPixelType;
  typedef typename InputPixelType::RealValueType InputPixelRealValueType;

  typedef TOutputImage                        OutputImageType;
  typedef typename OutputImageType::Pointer   OutputImagePointer;
  typedef typename OutputImageType::PixelType OutputPixelType;

  itkSetMacro(MaximumNumberOfIterations, unsigned int);
  itkGetConstMacro(MaximumNumberOfIterations, unsigned int);

  itkSetMacro(AutomaticNumberOfIterations, bool);
  itkGetConstMacro(AutomaticNumberOfIterations, bool);
  itkBooleanMacro(AutomaticNumberOfIterations);

  itkSetMacro(ComputeInverse, bool);
  itkGetConstMacro(ComputeInverse, bool);
  itkBooleanMacro(ComputeInverse);

  itkStaticConstMacro(ImageDimension, unsigned int,
                      TInputImage::ImageDimension);
  itkStaticConstMacro(OutputImageDimension, unsigned int,
                      TInputImage::ImageDimension);
  itkStaticConstMacro(PixelDimension, unsigned int,
                      InputPixelType::Dimension);
  itkStaticConstMacro(OutputPixelDimension, unsigned int,
                      OutputPixelType::Dimension);

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro( OutputHasNumericTraitsCheck,
                   ( Concept::HasNumericTraits< typename OutputPixelType::ValueType > ) );
  itkConceptMacro( SameDimensionCheck1,
                   ( Concept::SameDimension< ImageDimension, OutputImageDimension > ) );
  itkConceptMacro( SameDimensionCheck2,
                   ( Concept::SameDimension< ImageDimension, PixelDimension > ) );
  itkConceptMacro( SameDimensionCheck3,
                   ( Concept::SameDimension< ImageDimension, OutputPixelDimension > ) );

#endif

protected:
  ExponentialDisplacementFieldImageFilter();
  virtual ~ExponentialDisplacementFieldImageFilter() {}

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

  void GenerateData();

  typedef typename InputImageType::RegionType RegionType;

  typedef DivideImageFilter<
    InputImageType,
    itk::Image<InputPixelRealValueType, ImageDimension>,
    OutputImageType >                                   DivideByConstantType;

  typedef CastImageFilter<
    InputImageType, OutputImageType >                   CasterType;

  typedef WarpVectorImageFilter<
    OutputImageType,
    OutputImageType, OutputImageType >                  VectorWarperType;

  typedef VectorLinearInterpolateNearestNeighborExtrapolateImageFunction<
    OutputImageType, double >                            FieldInterpolatorType;

  typedef AddImageFilter<
    OutputImageType, OutputImageType, OutputImageType > AdderType;

  typedef typename DivideByConstantType::Pointer     DivideByConstantPointer;
  typedef typename CasterType::Pointer               CasterPointer;
  typedef typename VectorWarperType::Pointer         VectorWarperPointer;
  typedef typename FieldInterpolatorType::Pointer    FieldInterpolatorPointer;
  typedef typename FieldInterpolatorType::OutputType FieldInterpolatorOutputType;
  typedef typename AdderType::Pointer                AdderPointer;

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

  bool         m_AutomaticNumberOfIterations;
  unsigned int m_MaximumNumberOfIterations;

  bool m_ComputeInverse;

  DivideByConstantPointer m_Divider;
  CasterPointer           m_Caster;
  VectorWarperPointer     m_Warper;
  AdderPointer            m_Adder;
};
} // end namespace itk

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

#endif