itkLabelImageGenericInterpolateImageFunction.h

Go to the documentation of this file.

/*=========================================================================
 *
 *  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 itkLabelImageGenericInterpolateImageFunction_h
#define itkLabelImageGenericInterpolateImageFunction_h

#include <itkInterpolateImageFunction.h>
#include "itkLabelSelectionImageAdaptor.h"
#include <vector>
#include <set>

namespace itk
{

template <typename TInputImage,template<class, typename> class TInterpolator, typename TCoordRep=double >
class ITK_EXPORT LabelImageGenericInterpolateImageFunction :
  public InterpolateImageFunction<TInputImage, TCoordRep>
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(LabelImageGenericInterpolateImageFunction);

  using Self = LabelImageGenericInterpolateImageFunction;
  using Superclass = InterpolateImageFunction<TInputImage, TCoordRep>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
  using InputPixelType = typename TInputImage::PixelType;

  itkTypeMacro( LabelImageGenericInterpolateImageFunction, InterpolateImageFunction );

  itkNewMacro( Self );

  static constexpr unsigned int ImageDimension = TInputImage::ImageDimension;

  using OutputType = typename Superclass::OutputType;

  using InputImageType = typename Superclass::InputImageType;

  using RealType = typename Superclass::RealType;

  using IndexType = typename Superclass::IndexType;

  using ContinuousIndexType = typename Superclass::ContinuousIndexType;

  using LabelSelectionAdaptorType = LabelSelectionImageAdaptor<TInputImage,double>;

  // The interpolator used for individual binary masks corresponding to each label
  using InternalInterpolatorType = TInterpolator<LabelSelectionAdaptorType,TCoordRep>;

  OutputType EvaluateAtContinuousIndex(
    const ContinuousIndexType & cindex ) const override
    {
    return this->EvaluateAtContinuousIndex( cindex, nullptr );
    }

  void SetInputImage( const TInputImage *image ) override;

protected:
  LabelImageGenericInterpolateImageFunction();
  ~LabelImageGenericInterpolateImageFunction() override{};

  std::vector<typename InternalInterpolatorType::Pointer>   m_InternalInterpolators;
  std::vector<typename LabelSelectionAdaptorType::Pointer>  m_LabelSelectionAdaptors;
  using LabelSetType = std::set<typename TInputImage::PixelType>;
  LabelSetType m_Labels;

private:
  virtual OutputType EvaluateAtContinuousIndex(
    const ContinuousIndexType &, OutputType * ) const;
};

} // end namespace itk

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

#endif