itkDanielssonDistanceMapImageFilter.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 __itkDanielssonDistanceMapImageFilter_h
#define __itkDanielssonDistanceMapImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkImageRegionIteratorWithIndex.h"

namespace itk
{
template< typename TInputImage,
  typename TOutputImage,
  typename TVoronoiImage = TInputImage >
class DanielssonDistanceMapImageFilter:
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
  typedef DanielssonDistanceMapImageFilter                Self;
  typedef ImageToImageFilter< TInputImage, TOutputImage > Superclass;
  typedef SmartPointer< Self >                            Pointer;
  typedef SmartPointer< const Self >                      ConstPointer;

  typedef DataObject::Pointer                             DataObjectPointer;

  itkNewMacro(Self);

  itkTypeMacro(DanielssonDistanceMapImageFilter, ImageToImageFilter);

  typedef   TInputImage InputImageType;

  typedef typename InputImageType::PixelType InputPixelType;

  typedef typename InputImageType::RegionType RegionType;

  typedef typename RegionType::IndexType IndexType;

  typedef typename InputImageType::OffsetType OffsetType;

  typedef typename InputImageType::SpacingType      SpacingType;
  typedef typename InputImageType::SpacingValueType SpacingValueType;

  typedef typename RegionType::SizeType SizeType;

  typedef typename SizeType::SizeValueType SizeValueType;

  typedef   TOutputImage OutputImageType;

  typedef typename OutputImageType::PixelType OutputPixelType;

  typedef TVoronoiImage                         VoronoiImageType;
  typedef typename VoronoiImageType::Pointer    VoronoiImagePointer;
  typedef typename VoronoiImageType::PixelType  VoronoiPixelType;

  itkStaticConstMacro(InputImageDimension, unsigned int,
                      InputImageType::ImageDimension);

  typedef Image< OffsetType,
                 itkGetStaticConstMacro(InputImageDimension) > VectorImageType;

  typedef typename InputImageType::ConstPointer InputImagePointer;

  typedef typename OutputImageType::Pointer OutputImagePointer;

  typedef typename VectorImageType::Pointer VectorImagePointer;

  itkSetMacro(SquaredDistance, bool);

  itkGetConstReferenceMacro(SquaredDistance, bool);

  itkBooleanMacro(SquaredDistance);

  itkSetMacro(InputIsBinary, bool);

  itkGetConstReferenceMacro(InputIsBinary, bool);

  itkBooleanMacro(InputIsBinary);

  itkSetMacro(UseImageSpacing, bool);

  itkGetConstReferenceMacro(UseImageSpacing, bool);

  itkBooleanMacro(UseImageSpacing);

  VoronoiImageType * GetVoronoiMap(void);

  OutputImageType * GetDistanceMap(void);

  VectorImageType * GetVectorDistanceMap(void);

  typedef ProcessObject::DataObjectPointerArraySizeType DataObjectPointerArraySizeType;
  using Superclass::MakeOutput;
  virtual DataObjectPointer MakeOutput( DataObjectPointerArraySizeType idx );

#ifdef ITK_USE_CONCEPT_CHECKING
  itkStaticConstMacro(OutputImageDimension, unsigned int,
                      TOutputImage::ImageDimension);
  itkStaticConstMacro(VoronoiImageDimension, unsigned int,
                      TVoronoiImage::ImageDimension);

  // Begin concept checking
  itkConceptMacro( InputOutputSameDimensionCheck,
                   ( Concept::SameDimension< InputImageDimension, OutputImageDimension > ) );
  itkConceptMacro( InputVoronoiSameDimensionCheck,
                   ( Concept::SameDimension< InputImageDimension, VoronoiImageDimension > ) );
  itkConceptMacro( DoubleConvertibleToOutputCheck,
                   ( Concept::Convertible< double, OutputPixelType > ) );
  itkConceptMacro( InputConvertibleToOutputCheck,
                   ( Concept::Convertible< InputPixelType,
                                           OutputPixelType > ) );
  // End concept checking
#endif

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

  void GenerateData();

  void PrepareData();

  void ComputeVoronoiMap();

  void UpdateLocalDistance(VectorImageType *,
                           const IndexType &,
                           const OffsetType &);

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

  bool m_SquaredDistance;
  bool m_InputIsBinary;
  bool m_UseImageSpacing;

  SpacingType m_InputSpacingCache;

}; // end of DanielssonDistanceMapImageFilter class
} //end namespace itk

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

#endif