/usr/include/ITK-4.5/itkForwardDifferenceOperator.h is in libinsighttoolkit4-dev 4.5.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 | /*=========================================================================
*
* 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.
*
*=========================================================================*/
#ifndef __itkForwardDifferenceOperator_h
#define __itkForwardDifferenceOperator_h
#include "itkNeighborhoodOperator.h"
namespace itk
{
/**
* \class ForwardDifferenceOperator
* \brief Operator whose inner product with a neighborhood returns
* a "half" derivative at the center of the neighborhood.
*
* ForwardDifferenceOperator uses forward differences
* i.e. F(x+1) - F(x) to calculate a "half" derivative useful, among
* other things, in solving differential equations. It is a directional
* NeighborhoodOperator that should be applied to a Neighborhood using the
* inner product.
*
* \ingroup Operators
* \ingroup ITKCommon
*
* \wiki
* \wikiexample{Operators/ForwardDifferenceOperator,Create a forward difference kernel}
* \endwiki
*/
template< typename TPixel, unsigned int VDimension = 2,
typename TAllocator = NeighborhoodAllocator< TPixel > >
class ForwardDifferenceOperator:
public NeighborhoodOperator< TPixel, VDimension, TAllocator >
{
public:
/** Standard class typedefs. */
typedef ForwardDifferenceOperator Self;
typedef NeighborhoodOperator< TPixel, VDimension, TAllocator > Superclass;
typedef typename Superclass::PixelType PixelType;
/** Constructor. */
ForwardDifferenceOperator() {}
/** Copy constructor */
ForwardDifferenceOperator(const Self & other):
NeighborhoodOperator< TPixel, VDimension, TAllocator >(other) {}
/** Assignment operator */
Self & operator=(const Self & other)
{
Superclass::operator=(other);
return *this;
}
protected:
/** Necessary to work around VC++ compiler bug. */
typedef typename Superclass::CoefficientVector CoefficientVector;
/** Calculates operator coefficients. */
CoefficientVector GenerateCoefficients();
/** Arranges coefficients spatially in the memory buffer. */
void Fill(const CoefficientVector & coeff)
{ this->FillCenteredDirectional(coeff); }
};
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkForwardDifferenceOperator.hxx"
#endif
#endif
|