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/*=========================================================================
*
* Copyright UMC Utrecht and contributors
*
* 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 elxNearestNeighborInterpolator_h
#define elxNearestNeighborInterpolator_h
#include "elxIncludes.h" // include first to avoid MSVS warning
#include "itkNearestNeighborInterpolateImageFunction.h"
namespace elastix
{
/**
* \class NearestNeighborInterpolator
* \brief An interpolator based on the itkNearestNeighborInterpolateImageFunction.
*
* This interpolator interpolates images using nearest neighbour interpolation.
* The image derivatives are computed using a central difference scheme.
*
* The parameters used in this class are:
* \parameter Interpolator: Select this interpolator as follows:\n
* <tt>(Interpolator "NearestNeighborInterpolator")</tt>
*
* \ingroup Interpolators
*/
template <class TElastix>
class ITK_TEMPLATE_EXPORT NearestNeighborInterpolator
: public itk::NearestNeighborInterpolateImageFunction<typename InterpolatorBase<TElastix>::InputImageType,
typename InterpolatorBase<TElastix>::CoordRepType>
, public InterpolatorBase<TElastix>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(NearestNeighborInterpolator);
/** Standard ITK-stuff. */
using Self = NearestNeighborInterpolator;
using Superclass1 = itk::NearestNeighborInterpolateImageFunction<typename InterpolatorBase<TElastix>::InputImageType,
typename InterpolatorBase<TElastix>::CoordRepType>;
using Superclass2 = InterpolatorBase<TElastix>;
using Pointer = itk::SmartPointer<Self>;
using ConstPointer = itk::SmartPointer<const Self>;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(NearestNeighborInterpolator, itk::NearestNeighborInterpolateImageFunction);
/** Name of this class.
* Use this name in the parameter file to select this specific interpolator. \n
* example: <tt>(Interpolator "NearestNeighborInterpolator")</tt>\n
*/
elxClassNameMacro("NearestNeighborInterpolator");
/** Get the ImageDimension. */
itkStaticConstMacro(ImageDimension, unsigned int, Superclass1::ImageDimension);
/** Typedefs inherited from the superclass. */
using typename Superclass1::OutputType;
using typename Superclass1::InputImageType;
using typename Superclass1::IndexType;
using typename Superclass1::ContinuousIndexType;
using typename Superclass1::PointType;
/** Typedefs inherited from Elastix. */
using typename Superclass2::ElastixType;
using typename Superclass2::RegistrationType;
using ITKBaseType = typename Superclass2::ITKBaseType;
protected:
/** The constructor. */
NearestNeighborInterpolator() = default;
/** The destructor. */
~NearestNeighborInterpolator() override = default;
private:
elxOverrideGetSelfMacro;
};
} // end namespace elastix
#ifndef ITK_MANUAL_INSTANTIATION
# include "elxNearestNeighborInterpolator.hxx"
#endif
#endif // end #ifndef elxNearestNeighborInterpolator_h
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