itkMultiResolutionPyramidImageFilter.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 itkMultiResolutionPyramidImageFilter_h
#define itkMultiResolutionPyramidImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkArray2D.h"

namespace itk
{
template<
  typename TInputImage,
  typename TOutputImage
  >
class ITK_TEMPLATE_EXPORT MultiResolutionPyramidImageFilter:
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(MultiResolutionPyramidImageFilter);

  using Self = MultiResolutionPyramidImageFilter;
  using Superclass = ImageToImageFilter< TInputImage, TOutputImage >;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  itkNewMacro(Self);

  itkTypeMacro(MultiResolutionPyramidImageFilter, ImageToImageFilter);

  using ScheduleType = Array2D< unsigned int >;

  static constexpr unsigned int ImageDimension = TInputImage::ImageDimension;
  static constexpr unsigned int OutputImageDimension = TOutputImage::ImageDimension;

  using InputImageType = typename Superclass::InputImageType;
  using OutputImageType = typename Superclass::OutputImageType;
  using InputImagePointer = typename Superclass::InputImagePointer;
  using OutputImagePointer = typename Superclass::OutputImagePointer;
  using InputImageConstPointer = typename Superclass::InputImageConstPointer;

  virtual void SetNumberOfLevels(unsigned int num);

  itkGetConstMacro(NumberOfLevels, unsigned int);

  virtual void SetSchedule(const ScheduleType & schedule);

  itkGetConstReferenceMacro(Schedule, ScheduleType);

  virtual void SetStartingShrinkFactors(unsigned int factor);

  virtual void SetStartingShrinkFactors(unsigned int *factors);

  const unsigned int * GetStartingShrinkFactors() const;

  static bool IsScheduleDownwardDivisible(const ScheduleType & schedule);

  void GenerateOutputInformation() override;

  void GenerateOutputRequestedRegion(DataObject *output) override;

  void GenerateInputRequestedRegion() override;

  itkSetMacro(MaximumError, double);
  itkGetConstReferenceMacro(MaximumError, double);

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

#ifdef ITK_USE_CONCEPT_CHECKING
  // Begin concept checking
  itkConceptMacro( SameDimensionCheck,
                   ( Concept::SameDimension< ImageDimension, OutputImageDimension > ) );
  itkConceptMacro( OutputHasNumericTraitsCheck,
                   ( Concept::HasNumericTraits< typename TOutputImage::PixelType > ) );
  // End concept checking
#endif

protected:
  MultiResolutionPyramidImageFilter();
  ~MultiResolutionPyramidImageFilter() override = default;
  void PrintSelf(std::ostream & os, Indent indent) const override;

  void GenerateData() override;

  double m_MaximumError;

  unsigned int m_NumberOfLevels;
  ScheduleType m_Schedule;

  bool m_UseShrinkImageFilter;
};
} // namespace itk

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

#endif