itkScalarChanAndVeseSparseLevelSetImageFilter.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 __itkScalarChanAndVeseSparseLevelSetImageFilter_h
#define __itkScalarChanAndVeseSparseLevelSetImageFilter_h

#include "itkMultiphaseSparseFiniteDifferenceImageFilter.h"
#include "itkRegionOfInterestImageFilter.h"
#include "itkScalarChanAndVeseLevelSetFunction.h"

namespace itk
{
template< typename TInputImage, typename TFeatureImage, typename TOutputImage,
          typename TFunction = ScalarChanAndVeseLevelSetFunction< TInputImage, TFeatureImage >,
          class TSharedData = typename TFunction::SharedDataType,
          typename TIdCell = unsigned int >
class ScalarChanAndVeseSparseLevelSetImageFilter:
  public MultiphaseSparseFiniteDifferenceImageFilter< TInputImage, TFeatureImage,
                                                      TOutputImage, TFunction, TIdCell >
{
public:
  typedef ScalarChanAndVeseSparseLevelSetImageFilter Self;
  typedef MultiphaseSparseFiniteDifferenceImageFilter< TInputImage,
                                                       TFeatureImage, TOutputImage, TFunction, TIdCell >     Superclass;
  typedef SmartPointer< Self >       Pointer;
  typedef SmartPointer< const Self > ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(ScalarChanAndVeseSparseLevelSetImageFilter,
               MultiphaseSparseFiniteDifferenceImageFilter);

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

  typedef typename Superclass::InputImageType    InputImageType;
  typedef typename Superclass::InputImagePointer InputImagePointer;
  typedef typename Superclass::InputPointType    InputPointType;
  typedef typename Superclass::ValueType         ValueType;
  typedef typename Superclass::InputSpacingType  InputSpacingType;

  typedef TFeatureImage                             FeatureImageType;
  typedef typename FeatureImageType::Pointer        FeatureImagePointer;
  typedef typename FeatureImageType::PixelType      FeaturePixelType;
  typedef typename FeatureImageType::IndexType      FeatureIndexType;
  typedef typename FeatureIndexType::IndexValueType FeatureIndexValueType;
  typedef typename FeatureImageType::RegionType     FeatureRegionType;

  typedef TOutputImage                        OutputImageType;
  typedef typename OutputImageType::IndexType IndexType;
  typedef typename OutputImageType::PixelType OutputPixelType;

  typedef typename Superclass::TimeStepType TimeStepType;
  typedef typename Superclass::FiniteDifferenceFunctionType
  FiniteDifferenceFunctionType;

  typedef typename Superclass::IdCellType IdCellType;

  typedef TFunction                      FunctionType;
  typedef typename FunctionType::Pointer FunctionPtr;

  typedef TSharedData                      SharedDataType;
  typedef typename SharedDataType::Pointer SharedDataPointer;

  typedef RegionOfInterestImageFilter< FeatureImageType, FeatureImageType > ROIFilterType;
  typedef typename ROIFilterType::Pointer                                   ROIFilterPointer;

#ifdef ITK_USE_CONCEPT_CHECKING
  // Begin concept checking
  itkConceptMacro( OutputHasNumericTraitsCheck,
                   ( Concept::HasNumericTraits< OutputPixelType > ) );
  // End concept checking
#endif

  virtual void SetFeatureImage(const FeatureImagePointer f)
  {
    this->SetInput(f);
  }

protected:
  ScalarChanAndVeseSparseLevelSetImageFilter()
  {
    this->SetNumberOfLayers(2); // Narrow-band usage
    this->m_SharedData = SharedDataType::New();
  }

  ~ScalarChanAndVeseSparseLevelSetImageFilter() {}

  SharedDataPointer m_SharedData;

  virtual void Initialize();

  virtual void InitializeIteration();

  virtual void UpdatePixel(unsigned int functionIndex,
                           unsigned int idx, NeighborhoodIterator< InputImageType > & iterator,
                           ValueType & newValue, bool & status);
};
} //end namespace itk

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

#endif