itkDirectedHausdorffDistanceImageFilter.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 __itkDirectedHausdorffDistanceImageFilter_h
#define __itkDirectedHausdorffDistanceImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkNumericTraits.h"
#include "itkArray.h"
#include "itkCompensatedSummation.h"

namespace itk
{
template< class TInputImage1, class TInputImage2 >
class ITK_EXPORT DirectedHausdorffDistanceImageFilter:
  public ImageToImageFilter< TInputImage1, TInputImage1 >
{
public:
  typedef DirectedHausdorffDistanceImageFilter             Self;
  typedef ImageToImageFilter< TInputImage1, TInputImage1 > Superclass;
  typedef SmartPointer< Self >                             Pointer;
  typedef SmartPointer< const Self >                       ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(DirectedHausdorffDistanceImageFilter, ImageToImageFilter);

  typedef TInputImage1                        InputImage1Type;
  typedef TInputImage2                        InputImage2Type;
  typedef typename TInputImage1::Pointer      InputImage1Pointer;
  typedef typename TInputImage2::Pointer      InputImage2Pointer;
  typedef typename TInputImage1::ConstPointer InputImage1ConstPointer;
  typedef typename TInputImage2::ConstPointer InputImage2ConstPointer;

  typedef typename TInputImage1::RegionType RegionType;
  typedef typename TInputImage1::SizeType   SizeType;
  typedef typename TInputImage1::IndexType  IndexType;

  typedef typename TInputImage1::PixelType InputImage1PixelType;
  typedef typename TInputImage2::PixelType InputImage2PixelType;

  itkStaticConstMacro(ImageDimension, unsigned int,
                      TInputImage1::ImageDimension);

  typedef typename NumericTraits< InputImage1PixelType >::RealType RealType;

  void SetInput1(const InputImage1Type *image);

  void SetInput2(const InputImage2Type *image);

  const InputImage1Type * GetInput1(void);

  const InputImage2Type * GetInput2(void);

  itkSetMacro(UseImageSpacing, bool);
  itkGetConstMacro( UseImageSpacing, bool );

  itkGetConstMacro(DirectedHausdorffDistance, RealType);
  itkGetConstMacro(AverageHausdorffDistance, RealType);

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro( InputHasNumericTraitsCheck,
                   ( Concept::HasNumericTraits< InputImage1PixelType > ) );

#endif

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

  void AllocateOutputs();

  void BeforeThreadedGenerateData();

  void AfterThreadedGenerateData();

  void  ThreadedGenerateData(const RegionType &
                             outputRegionForThread,
                             ThreadIdType threadId);

  // Override since the filter needs all the data for the algorithm
  void GenerateInputRequestedRegion();

  // Override since the filter produces all of its output
  void EnlargeOutputRequestedRegion(DataObject *data);

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

  typedef Image< RealType, itkGetStaticConstMacro(ImageDimension) > DistanceMapType;
  typedef typename DistanceMapType::Pointer                         DistanceMapPointer;


  DistanceMapPointer      m_DistanceMap;

  Array< RealType >       m_MaxDistance;
  Array< IdentifierType > m_PixelCount;

  typedef itk::CompensatedSummation< RealType > CompensatedSummationType;
  std::vector< CompensatedSummationType >       m_Sum;

  RealType                m_DirectedHausdorffDistance;
  RealType                m_AverageHausdorffDistance;
  bool                    m_UseImageSpacing;
}; // end of class
} // end namespace itk

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

#endif