/usr/include/InsightToolkit/Common/itkBSplineInterpolationWeightFunction.h is in libinsighttoolkit3-dev 3.20.1-1.
This file is owned by root:root, with mode 0o644.
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Program: Insight Segmentation & Registration Toolkit
Module: itkBSplineInterpolationWeightFunction.h
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef __itkBSplineInterpolationWeightFunction_h
#define __itkBSplineInterpolationWeightFunction_h
#include "itkFunctionBase.h"
#include "itkContinuousIndex.h"
#include "itkBSplineKernelFunction.h"
#include "itkArray.h"
#include "itkArray2D.h"
namespace itk
{
/** \class BSplineInterpolationWeightFunction
* \brief Returns the weights over the support region used for B-spline
* interpolation/reconstruction.
*
* Computes/evaluate the B-spline interpolation weights over the
* support region of the B-spline.
*
* This class is templated over the coordinate representation type,
* the space dimension and the spline order.
*
* \sa Point
* \sa Index
* \sa ContinuousIndex
*
* \ingroup Functions ImageInterpolators
*/
template <
class TCoordRep = float,
unsigned int VSpaceDimension = 2,
unsigned int VSplineOrder = 3
>
class ITK_EXPORT BSplineInterpolationWeightFunction :
public FunctionBase< ContinuousIndex<TCoordRep,VSpaceDimension>,
Array<double> >
{
public:
/** Standard class typedefs. */
typedef BSplineInterpolationWeightFunction Self;
typedef FunctionBase< ContinuousIndex<TCoordRep,VSpaceDimension>,
Array<double> > Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** New macro for creation of through the object factory. */
itkNewMacro( Self );
/** Run-time type information (and related methods). */
itkTypeMacro(BSplineInterpolationWeightFunction, FunctionBase);
/** Space dimension. */
itkStaticConstMacro(SpaceDimension, unsigned int, VSpaceDimension);
/** Spline order. */
itkStaticConstMacro(SplineOrder, unsigned int, VSplineOrder);
/** OutputType typedef support. */
typedef Array<double> WeightsType;
/** Index and size typedef support. */
typedef Index<VSpaceDimension> IndexType;
typedef Size<VSpaceDimension> SizeType;
/** ContinuousIndex typedef support. */
typedef ContinuousIndex<TCoordRep,VSpaceDimension> ContinuousIndexType;
/** Evaluate the weights at specified ContinousIndex position.
* Subclasses must provide this method. */
virtual WeightsType Evaluate( const ContinuousIndexType & index ) const;
/** Evaluate the weights at specified ContinousIndex position.
* The weights are returned in the user specified container.
* This function assume that weights can hold
* (SplineOrder + 1)^(SpaceDimension) elements. For efficiency,
* no size checking is done.
* On return, startIndex contains the start index of the
* support region over which the weights are defined.
*/
virtual void Evaluate( const ContinuousIndexType & index,
WeightsType & weights, IndexType & startIndex ) const;
/** Get support region size. */
itkGetConstMacro( SupportSize, SizeType );
/** Get number of weights. */
itkGetConstMacro( NumberOfWeights, unsigned long );
protected:
BSplineInterpolationWeightFunction();
~BSplineInterpolationWeightFunction() {}
void PrintSelf(std::ostream& os, Indent indent) const;
private:
BSplineInterpolationWeightFunction(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
/** Number of weights. */
unsigned long m_NumberOfWeights;
/** Size of support region. */
SizeType m_SupportSize;
/** Lookup table type. */
typedef Array2D<unsigned long> TableType;
/** Table mapping linear offset to indices. */
TableType m_OffsetToIndexTable;
/** Interpolation kernel type. */
typedef BSplineKernelFunction<itkGetStaticConstMacro(SplineOrder)> KernelType;
/** Interpolation kernel. */
typename KernelType::Pointer m_Kernel;
};
} // end namespace itk
// Define instantiation macro for this template.
#define ITK_TEMPLATE_BSplineInterpolationWeightFunction(_, EXPORT, x, y) namespace itk { \
_(3(class EXPORT BSplineInterpolationWeightFunction< ITK_TEMPLATE_3 x >)) \
namespace Templates { typedef BSplineInterpolationWeightFunction< ITK_TEMPLATE_3 x > BSplineInterpolationWeightFunction##y; } \
}
#if ITK_TEMPLATE_EXPLICIT
# include "Templates/itkBSplineInterpolationWeightFunction+-.h"
#endif
#if ITK_TEMPLATE_TXX
# include "itkBSplineInterpolationWeightFunction.txx"
#endif
#endif
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