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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
*
* https://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.
*
*=========================================================================*/
/*=========================================================================
*
* Portions of this file are subject to the VTK Toolkit Version 3 copyright.
*
* Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
*
* For complete copyright, license and disclaimer of warranty information
* please refer to the NOTICE file at the top of the ITK source tree.
*
*=========================================================================*/
#ifndef itkBSplineUpsampleImageFilter_h
#define itkBSplineUpsampleImageFilter_h
// include .h for each ResamplerType
#include "itkBSplineL2ResampleImageFilterBase.h"
#include "itkBSplineCenteredL2ResampleImageFilterBase.h"
namespace itk
{
/**
* \class BSplineUpsampleImageFilter
* \brief Uses B-Spline interpolation to upsample an image by a factor of 2.
* This class is the public interface for spline upsampling as defined by the
* ResamplerType.
*
* Requires the use of a resampler type. If in doubt, the basic itkBSplineResampleImageFilterBase
* should work fine for most applications.
*
* This class defines N-Dimension B-Spline transformation.
* It is based on:
* [1] M. Unser,
* "Splines: A Perfect Fit for Signal and Image Processing,"
* IEEE Signal Processing Magazine, vol. 16, no. 6, pp. 22-38,
* November 1999.
* [2] M. Unser, A. Aldroubi and M. Eden,
* "B-Spline Signal Processing: Part I--Theory,"
* IEEE Transactions on Signal Processing, vol. 41, no. 2, pp. 821-832,
* February 1993.
* [3] M. Unser, A. Aldroubi and M. Eden,
* "B-Spline Signal Processing: Part II--Efficient Design and Applications,"
* IEEE Transactions on Signal Processing, vol. 41, no. 2, pp. 834-848,
* February 1993.
* And code obtained from bigwww.epfl.ch by Philippe Thevenaz
*
* Limitations: This class requires specification of a resampler type which may
* be one of:
* BSplineResampleImageFilterBase,
* BSplineL2ResampleImageFilterBase
* BSplineSplineCenteredResampleImageFilterBase,
* BSplineCenteredL2ResampleImageFilterBase
* The limitations of these resampler types will apply to this filter.
* Upsamples only by a factor of 2.
*
* \sa BSplineDownsampleImageFilter
* \sa BSplineL2ResampleImageFilter
* \sa BSplineResampleImageFilterBase
* \sa BSplineCenteredResampleImageFilterBase
* \sa BSplineCenteredL2ResampleImageFilterBase
*
* \ingroup GeometricTransformationFilters
* \ingroup SingleThreaded
* \ingroup CannotBeStreamed
* \ingroup ITKImageGrid
*/
template <typename TInputImage,
typename TOutputImage,
typename ResamplerType = BSplineResampleImageFilterBase<TInputImage, TOutputImage>>
class ITK_TEMPLATE_EXPORT BSplineUpsampleImageFilter : public ResamplerType
{
public:
ITK_DISALLOW_COPY_AND_MOVE(BSplineUpsampleImageFilter);
/** Standard class type aliases. */
using Self = BSplineUpsampleImageFilter;
using Superclass = ResamplerType;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(BSplineUpsampleImageFilter);
/** New macro for creation of through a Smart Pointer */
itkNewMacro(Self);
/** InputImageType type alias support */
using typename Superclass::InputImageType;
/** InputImagePointer type alias support */
using typename Superclass::InputImagePointer;
/** OutputImageIterator type alias support */
using typename Superclass::OutputImageIterator;
/** OutputImagePointer type alias support */
using typename Superclass::OutputImagePointer;
/** Creates an image twice the size of the input image with spacing half the
* input image. */
void
GenerateOutputInformation() override;
/** This filter requires all of the input image */
void
GenerateInputRequestedRegion() override;
#ifdef ITK_USE_CONCEPT_CHECKING
// Begin concept checking
itkConceptMacro(DoubleConvertibleToOutputCheck, (Concept::Convertible<double, typename TOutputImage::PixelType>));
// End concept checking
#endif
protected:
void
GenerateData() override;
void
EnlargeOutputRequestedRegion(DataObject * output) override;
BSplineUpsampleImageFilter() = default;
~BSplineUpsampleImageFilter() override = default;
void
PrintSelf(std::ostream & os, Indent indent) const override;
};
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkBSplineUpsampleImageFilter.hxx"
#endif
#endif
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