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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.
*
*=========================================================================*/
/*=========================================================================
*
* 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 itkBSplineCenteredL2ResampleImageFilterBase_h
#define itkBSplineCenteredL2ResampleImageFilterBase_h
#include <vector>
#include "itkBSplineCenteredResampleImageFilterBase.h"
namespace itk
{
/** \class itkBSplineCenteredL2ResampleImageFilterBase
* \brief Uses the "Centered L2" B-Spline pyramid implementation of B-Spline Filters
* to up/down sample an image by a factor of 2.
*
* This class defines N-Dimension Centered L2 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.
* [4] P. Brigger, F. Miller, K. Illgner, M. Unser, "Centered Pyramids,"
* IEEE Transactions on Image Processing, vol. 8, no. 9, pp. 1254-1264,
* September 1999.
* And code obtained from bigwww.epfl.ch by Philippe Thevenaz
*
* Limitations: Spline order for the centered L2 pyramid must be between 0 and 4.
* This code cannot be multi-threaded since the entire image must be
* traversed in the proper order.
* This code cannot be streamed and requires the all of the input image.
* Only up/down samples by a factor of 2.
* This is a base class and is not meant to be instantiated on its own.
* It requires one of the itkBSplineDownsampleImageFilter or
* itkBSplineUpsampleImageFilter classes.
* Spline order must be set before setting the image.
* Uses mirror boundary conditions.
* Requires the same order of Spline for each dimension.
*
* \sa itkBSplineDownsampleImageFilter
* \sa itkBSplineUpsampleImageFilter
* \sa itkBSplineResampleImageFilterBase
* \sa itkBSplineCenteredResampleImageFilterBase
* \sa itkBSplineL2ResampleImageFilterBase
*
* \ingroup GeometricTransformationFilters
* \ingroup SingleThreaded
* \ingroup CannotBeStreamed
* \ingroup ITKImageGrid
*/
template< typename TInputImage, typename TOutputImage >
class ITK_TEMPLATE_EXPORT BSplineCenteredL2ResampleImageFilterBase:
public BSplineCenteredResampleImageFilterBase< TInputImage, TOutputImage >
{
public:
/** Standard class typedefs. */
typedef BSplineCenteredL2ResampleImageFilterBase Self;
typedef BSplineCenteredResampleImageFilterBase< TInputImage, TOutputImage > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Run-time type information (and related methods). */
itkTypeMacro(BSplineCenteredL2ResampleImageFilterBase, BSplineCenteredResampleImageFilterBase);
protected:
virtual void InitializePyramidSplineFilter(int SplineOrder) ITK_OVERRIDE;
BSplineCenteredL2ResampleImageFilterBase();
virtual ~BSplineCenteredL2ResampleImageFilterBase() ITK_OVERRIDE {}
void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(BSplineCenteredL2ResampleImageFilterBase);
};
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkBSplineCenteredL2ResampleImageFilterBase.hxx"
#endif
#endif
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