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<
  class TInputImage,
  class TOutputImage
  >
class ITK_EXPORT MultiResolutionPyramidImageFilter:
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
  typedef MultiResolutionPyramidImageFilter               Self;
  typedef ImageToImageFilter< TInputImage, TOutputImage > Superclass;
  typedef SmartPointer< Self >                            Pointer;
  typedef SmartPointer< const Self >                      ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(MultiResolutionPyramidImageFilter, ImageToImageFilter);

  typedef Array2D< unsigned int > ScheduleType;

  itkStaticConstMacro(ImageDimension, unsigned int,
                      TInputImage::ImageDimension);
  itkStaticConstMacro(OutputImageDimension, unsigned int,
                      TOutputImage::ImageDimension);

  typedef typename Superclass::InputImageType         InputImageType;
  typedef typename Superclass::OutputImageType        OutputImageType;
  typedef typename Superclass::InputImagePointer      InputImagePointer;
  typedef typename Superclass::OutputImagePointer     OutputImagePointer;
  typedef typename Superclass::InputImageConstPointer 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);

  virtual void GenerateOutputInformation();

  virtual void GenerateOutputRequestedRegion(DataObject *output);

  virtual void GenerateInputRequestedRegion();

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

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

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro( SameDimensionCheck,
                   ( Concept::SameDimension< ImageDimension, OutputImageDimension > ) );
  itkConceptMacro( OutputHasNumericTraitsCheck,
                   ( Concept::HasNumericTraits< typename TOutputImage::PixelType > ) );

#endif

protected:
  MultiResolutionPyramidImageFilter();
  ~MultiResolutionPyramidImageFilter() {}
  void PrintSelf(std::ostream & os, Indent indent) const;

  void GenerateData();

  double m_MaximumError;

  unsigned int m_NumberOfLevels;
  ScheduleType m_Schedule;

  bool m_UseShrinkImageFilter;

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

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

#endif