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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.
*
*=========================================================================*/
#ifndef itkNeighborhoodInnerProduct_h
#define itkNeighborhoodInnerProduct_h
#include "itkNeighborhoodIterator.h"
#include "itkConstSliceIterator.h"
#include "itkImageBoundaryCondition.h"
namespace itk
{
/** \class NeighborhoodInnerProduct
* \brief Defines the inner product operation between an
* Neighborhood and a NeighborhoodOperator.
*
* This class defines the inner product operation between an
* itk::Neighborhood and an itk::NeighborhoodOperator. The
* operator() method is overloaded to support various types of
* neighborhoods as well as inner products with slices of
* neighborhoods.
*
* \tparam TImage Type of image on which the class operates.
* \tparam TOperator The value type of the operator (defaults to
* the image pixel type).
* \tparam TComputation The value type used as the return type of the
* inner product calculation (defaults to the operator type).
*
* \ingroup Operators
* \ingroup ITKCommon
*/
template <typename TImage, typename TOperator = typename TImage::PixelType, typename TComputation = TOperator>
class ITK_TEMPLATE_EXPORT NeighborhoodInnerProduct
{
public:
/** Standard type alias */
using Self = NeighborhoodInnerProduct;
/** Capture some type alias from the template parameters. */
using ImagePixelType = typename TImage::PixelType;
using OperatorPixelType = TOperator;
using OutputPixelType = TComputation;
/** Capture some type alias from the template parameters. */
static constexpr unsigned int ImageDimension = TImage::ImageDimension;
/** Operator type alias */
using OperatorType = Neighborhood<OperatorPixelType, Self::ImageDimension>;
using NeighborhoodType = Neighborhood<ImagePixelType, Self::ImageDimension>;
static OutputPixelType
Compute(const ConstNeighborhoodIterator<TImage> & it,
const OperatorType & op,
const unsigned int start = 0,
const unsigned int stride = 1);
static OutputPixelType
Compute(const NeighborhoodType & N,
const OperatorType & op,
const unsigned int start = 0,
const unsigned int stride = 1);
/** Reference oeprator. */
OutputPixelType
operator()(const std::slice & s, const ConstNeighborhoodIterator<TImage> & it, const OperatorType & op) const
{
return Self::Compute(it, op, s.start(), s.stride());
}
OutputPixelType
operator()(const ConstNeighborhoodIterator<TImage> & it, const OperatorType & op) const
{
return Self::Compute(it, op);
}
OutputPixelType
operator()(const std::slice & s, const NeighborhoodType & N, const OperatorType & op) const
{
return Self::Compute(N, op, s.start(), s.stride());
}
OutputPixelType
operator()(const NeighborhoodType & N, const OperatorType & op) const
{
return Self::Compute(N, op);
}
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkNeighborhoodInnerProduct.hxx"
#endif
/*
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkNeighborhoodInnerProduct.hxx"
#endif
*/
#endif
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