itkBinaryMorphologyImageFilter.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 __itkBinaryMorphologyImageFilter_h
#define __itkBinaryMorphologyImageFilter_h

#include <vector>
#include <queue>
#include "itkKernelImageFilter.h"
#include "itkNeighborhoodIterator.h"
#include "itkImageBoundaryCondition.h"
#include "itkImageRegionIterator.h"
#include "itkConceptChecking.h"

namespace itk
{
template< typename TInputImage, typename TOutputImage, typename TKernel >
class BinaryMorphologyImageFilter:
  public KernelImageFilter< TInputImage, TOutputImage, TKernel >
{
public:

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

  itkStaticConstMacro(KernelDimension, unsigned int,
                      TKernel::NeighborhoodDimension);

  typedef TInputImage  InputImageType;
  typedef TOutputImage OutputImageType;

  typedef BinaryMorphologyImageFilter                                   Self;
  typedef KernelImageFilter< InputImageType, OutputImageType, TKernel > Superclass;
  typedef SmartPointer< Self >                                          Pointer;
  typedef SmartPointer< const Self >                                    ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(BinaryMorphologyImageFilter, ImageToImageFilter);

  typedef TKernel KernelType;

  typedef typename KernelType::ConstIterator KernelIteratorType;

  typedef typename InputImageType::PixelType                 InputPixelType;
  typedef typename OutputImageType::PixelType                OutputPixelType;
  typedef typename NumericTraits< InputPixelType >::RealType InputRealType;
  typedef typename InputImageType::OffsetType                OffsetType;
  typedef typename InputImageType::IndexType                 IndexType;
  typedef typename InputImageType::IndexValueType            IndexValueType;

  typedef typename InputImageType::RegionType    InputImageRegionType;
  typedef typename OutputImageType::RegionType   OutputImageRegionType;
  typedef typename InputImageType::SizeType      InputSizeType;
  typedef typename InputImageType::SizeValueType InputSizeValueType;

  itkConceptMacro( ImageDimensionCheck,
                   ( Concept::SameDimension< itkGetStaticConstMacro(InputImageDimension),
                                             itkGetStaticConstMacro(OutputImageDimension) > ) );

  itkSetMacro(ForegroundValue, InputPixelType);

  itkGetConstMacro(ForegroundValue, InputPixelType);

  itkSetMacro(BackgroundValue, OutputPixelType);

  itkGetConstMacro(BackgroundValue, OutputPixelType);

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

  void SetKernel(const KernelType & kernel);

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

  void AnalyzeKernel();

  typedef std::vector< OffsetType > NeighborIndexContainer;

  typedef std::vector< NeighborIndexContainer > NeighborIndexContainerContainer;

  typedef std::vector< OffsetType > ComponentVectorType;

  typedef typename ComponentVectorType::const_iterator
  ComponentVectorConstIterator;

  NeighborIndexContainer & GetDifferenceSet(unsigned int code)
  { return m_KernelDifferenceSets[code]; }

  ComponentVectorConstIterator KernelCCVectorBegin()
  { return m_KernelCCVector.begin(); }

  ComponentVectorConstIterator KernelCCVectorEnd()
  { return m_KernelCCVector.end(); }

  bool m_BoundaryToForeground;

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

  InputPixelType m_ForegroundValue;

  OutputPixelType m_BackgroundValue;

  NeighborIndexContainerContainer m_KernelDifferenceSets;

  std::vector< OffsetType > m_KernelCCVector;
};
} // end namespace itk

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

#endif