/usr/include/ITK-4.9/itkNeighborhoodOperator.hxx is in libinsighttoolkit4-dev 4.9.0-4ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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.
*
*=========================================================================*/
#ifndef itkNeighborhoodOperator_hxx
#define itkNeighborhoodOperator_hxx
#include "itkNeighborhoodOperator.h"
#include "itkIntTypes.h"
namespace itk
{
template< typename TPixel, unsigned int VDimension, typename TAllocator >
void
NeighborhoodOperator< TPixel, VDimension, TAllocator >
::ScaleCoefficients(PixelRealType s)
{
for ( unsigned i = 0; i < this->Size(); i++ )
{
this->operator[](i) = static_cast< TPixel >( this->operator[](i) * s );
}
}
template< typename TPixel, unsigned int VDimension, typename TAllocator >
void
NeighborhoodOperator< TPixel, VDimension, TAllocator >
::FlipAxes()
{
// To flip the operator across all of its axes, all we have to do is reverse
// the order of all coefficients.
const unsigned size = this->Size();
PixelType temp;
for ( unsigned i = 0; i < size / 2; ++i )
{
unsigned swap_with = size - 1 - i;
temp = this->operator[](i);
this->operator[](i) = this->operator[](swap_with);
this->operator[](swap_with) = temp;
}
}
template< typename TPixel, unsigned int VDimension, typename TAllocator >
void
NeighborhoodOperator< TPixel, VDimension, TAllocator >
::CreateDirectional()
{
SizeValueType k[VDimension];
CoefficientVector coefficients;
coefficients = this->GenerateCoefficients();
for ( unsigned int i = 0; i < VDimension; ++i )
{
if ( i == this->GetDirection() )
{
k[i] = static_cast< SizeValueType >( coefficients.size() ) >> 1;
}
else
{
k[i] = 0;
}
}
this->SetRadius(k);
this->Fill(coefficients);
}
template< typename TPixel, unsigned int VDimension, typename TAllocator >
void
NeighborhoodOperator< TPixel, VDimension, TAllocator >
::CreateToRadius(const SizeType & sz)
{
CoefficientVector coefficients;
coefficients = this->GenerateCoefficients();
this->SetRadius(sz);
this->Fill(coefficients);
}
template< typename TPixel, unsigned int VDimension, typename TAllocator >
void
NeighborhoodOperator< TPixel, VDimension, TAllocator >
::CreateToRadius(const SizeValueType sz)
{
SizeType k;
for ( unsigned int i = 0; i < VDimension; i++ )
{
k[i] = sz;
}
this->CreateToRadius(k);
}
template< typename TPixel, unsigned int VDimension, typename TAllocator >
void
NeighborhoodOperator< TPixel, VDimension, TAllocator >
::FillCenteredDirectional(const CoefficientVector & coeff)
{
// Initialize all coefficients to zero
this->InitializeToZero();
// Collect slice information
unsigned long start=0;
const unsigned long stride = this->GetStride(m_Direction);
const unsigned long size = this->GetSize(m_Direction);
for ( unsigned int i = 0; i < VDimension; ++i )
{
if ( i != m_Direction )
{
start += this->GetStride(i) * ( this->GetSize(i) >> 1 );
}
}
// Compare the neighborhood size with the coefficient array size..
const int sizediff = ( (int)size - (int)coeff.size() ) >> 1;
// Create a slice iterator centered in the neighborhood.
std::slice * temp_slice;
typename CoefficientVector::const_iterator it;
if ( sizediff >= 0 )
{
temp_slice = new std::slice(start + sizediff * stride, coeff.size(),
stride);
it = coeff.begin();
}
else
{
temp_slice = new std::slice(start, size, stride);
it = coeff.begin() - sizediff;
}
SliceIteratorType data(this, *temp_slice);
delete temp_slice;
// Copy the coefficients into the neighborhood, truncating them if there
// are too many.
for ( data = data.Begin(); data < data.End(); ++data, ++it )
{
*data = static_cast< TPixel >( *it );
}
}
} // namespace itk
#endif
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