itkValuedRegionalExtremaImageFilter.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 __itkValuedRegionalExtremaImageFilter_h
#define __itkValuedRegionalExtremaImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkShapedNeighborhoodIterator.h"
#include "itkConstantBoundaryCondition.h"
#include <stack>

namespace itk
{
template< class TInputImage, class TOutputImage,
          class TFunction1, class TFunction2 >
class ITK_EXPORT ValuedRegionalExtremaImageFilter:
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
  typedef ValuedRegionalExtremaImageFilter Self;

  typedef ImageToImageFilter< TInputImage, TOutputImage >
  Superclass;

  typedef SmartPointer< Self >       Pointer;
  typedef SmartPointer< const Self > ConstPointer;

  typedef TInputImage                            InputImageType;
  typedef TOutputImage                           OutputImageType;
  typedef typename InputImageType::Pointer       InputImagePointer;
  typedef typename InputImageType::ConstPointer  InputImageConstPointer;
  typedef typename InputImageType::RegionType    InputImageRegionType;
  typedef typename InputImageType::PixelType     InputImagePixelType;
  typedef typename InputImageType::SizeType      ISizeType;
  typedef typename OutputImageType::Pointer      OutputImagePointer;
  typedef typename OutputImageType::ConstPointer OutputImageConstPointer;
  typedef typename OutputImageType::RegionType   OutputImageRegionType;
  typedef typename OutputImageType::PixelType    OutputImagePixelType;

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

  itkNewMacro(Self);

  itkTypeMacro(ValuedRegionalExtremaImageFilter,
               ImageToImageFilter);

  itkSetMacro(FullyConnected, bool);
  itkGetConstReferenceMacro(FullyConnected, bool);
  itkBooleanMacro(FullyConnected);

  itkSetMacro(MarkerValue, typename TInputImage::PixelType);
  itkGetConstReferenceMacro(MarkerValue, typename TInputImage::PixelType);

  itkGetConstMacro(Flat, bool);

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro( InputHasPixelTraitsCheck,
                   ( Concept::HasPixelTraits< InputImagePixelType > ) );
  itkConceptMacro( InputHasNumericTraitsCheck,
                   ( Concept::HasNumericTraits< InputImagePixelType > ) );

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

  void GenerateInputRequestedRegion();

  void EnlargeOutputRequestedRegion( DataObject *itkNotUsed(output) );

  void GenerateData();

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

  typename TInputImage::PixelType m_MarkerValue;

  bool m_FullyConnected;
  bool m_Flat;

  typedef typename OutputImageType::IndexType               OutIndexType;
  typedef typename InputImageType::IndexType                InIndexType;
  typedef ConstShapedNeighborhoodIterator< InputImageType > ConstInputIterator;
  typedef ShapedNeighborhoodIterator< OutputImageType >     NOutputIterator;
  typedef std::stack< OutIndexType >                        IndexStack;
}; // end of class
} // end namespace itk

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

#endif