itkSpatialNeighborSubsampler.h

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/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  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 itkSpatialNeighborSubsampler_h
#define itkSpatialNeighborSubsampler_h
 
#include "itkRegionConstrainedSubsampler.h"
#include "itkImageHelper.h"
 
namespace itk
{
namespace Statistics
{
template <typename TSample, typename TRegion>
class ITK_TEMPLATE_EXPORT SpatialNeighborSubsampler : public RegionConstrainedSubsampler<TSample, TRegion>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(SpatialNeighborSubsampler);
 
  using Self = SpatialNeighborSubsampler<TSample, TRegion>;
  using Superclass = RegionConstrainedSubsampler<TSample, TRegion>;
  using Baseclass = typename Superclass::Baseclass;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
 
  itkTypeMacro(SpatialNeighborSubsampler, RegionConstrainedSubsampler);
 
  itkNewMacro(Self);
 
  using SampleType = typename Superclass::SampleType;
  using SampleConstPointer = typename Superclass::SampleConstPointer;
  using MeasurementVectorType = typename Superclass::MeasurementVectorType;
  using InstanceIdentifier = typename Superclass::InstanceIdentifier;
 
  using SubsampleType = typename Superclass::SubsampleType;
  using SubsamplePointer = typename Superclass::SubsamplePointer;
  using SubsampleConstIterator = typename Superclass::SubsampleConstIterator;
  using InstanceIdentifierHolder = typename Superclass::InstanceIdentifierHolder;
 
  using RegionType = typename Superclass::RegionType;
  using IndexType = typename Superclass::IndexType;
  using IndexValueType = typename Superclass::IndexValueType;
  using SizeType = typename Superclass::SizeType;
  using RadiusType = typename RegionType::SizeType;
 
  static constexpr unsigned int ImageDimension = RegionType::ImageDimension;
  using ImageHelperType = ImageHelper<Self::ImageDimension, Self::ImageDimension>;
 
  void
  SetRadius(const RadiusType & radius);
  void
  SetRadius(unsigned int radius);
 
  itkGetConstReferenceMacro(Radius, RadiusType);
 
  itkGetConstReferenceMacro(RadiusInitialized, bool);
 
  void
  Search(const InstanceIdentifier & query, SubsamplePointer & results) override;
 
protected:
  typename LightObject::Pointer
  InternalClone() const override;
 
  SpatialNeighborSubsampler();
  ~SpatialNeighborSubsampler() override = default;
 
  void
  PrintSelf(std::ostream & os, Indent indent) const override;
 
  RadiusType m_Radius;
  bool       m_RadiusInitialized;
}; // end of class SpatialNeighborSubsampler
 
} // end of namespace Statistics
} // end of namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkSpatialNeighborSubsampler.hxx"
#endif
 
#endif