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/*
* Copyright (C) 2005-2017 Centre National d'Etudes Spatiales (CNES)
*
* This file is part of Orfeo Toolbox
*
* https://www.orfeo-toolbox.org/
*
* 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
*
* 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 otbNAPCAImageFilter_h
#define otbNAPCAImageFilter_h
#include "otbMNFImageFilter.h"
namespace otb {
/** \class NAPCAImageFilter
* \brief Performs a Noise Adjusted PCA analysis of a vector image.
*
* The internal structure of this filter is a filter-to-filter like structure.
* The estimation of the covariance matrix has persistent capabilities...
*
* The high pass filter which has to be used for the noise estimation is templated
* for a better scalability...
*
* This class is very similar to the MNFImageFilter one since only the projection
* matrix definition (through GenerateTransformationMatrix function)
* differs.
*
* TODO? Use a 2nd input to give a noise image directly?
*
* \sa otbStreamingStatisticsVectorImageFilter
* \sa MNFImageFilter
*
* \ingroup OTBDimensionalityReduction
*/
template <class TInputImage, class TOutputImage,
class TNoiseImageFilter,
Transform::TransformDirection TDirectionOfTransformation >
class ITK_EXPORT NAPCAImageFilter
: public MNFImageFilter< TInputImage, TOutputImage, TNoiseImageFilter, TDirectionOfTransformation >
{
public:
typedef NAPCAImageFilter Self;
typedef MNFImageFilter< TInputImage, TOutputImage,
TNoiseImageFilter, TDirectionOfTransformation > Superclass;
typedef itk::SmartPointer<Self> Pointer;
typedef itk::SmartPointer<const Self> ConstPointer;
/** Type macro */
itkNewMacro(Self);
/** Creation through object factory macro */
itkTypeMacro(NAPCAImageFilter, MNFImageFilter);
/** Template parameters typedefs */
typedef typename Superclass::InputImageType InputImageType;
typedef typename Superclass::OutputImageType OutputImageType;
typedef typename Superclass::CovarianceEstimatorFilterType CovarianceEstimatorFilterType;
typedef typename Superclass::CovarianceEstimatorFilterPointerType CovarianceEstimatorFilterPointerType;
typedef typename Superclass::RealType RealType;
typedef typename Superclass::VectorType VectorType;
typedef typename Superclass::MatrixObjectType MatrixObjectType;
typedef typename Superclass::MatrixType MatrixType;
typedef typename Superclass::InternalMatrixType InternalMatrixType;
typedef typename Superclass::MatrixElementType MatrixElementType;
typedef typename Superclass::TransformFilterType TransformFilterType;
typedef typename Superclass::TransformFilterPointerType TransformFilterPointerType;
typedef typename Superclass::NoiseImageFilterType NoiseImageFilterType;
typedef typename Superclass::NoiseImageFilterPointerType NoiseImageFilterPointerType;
typedef typename Superclass::NormalizeFilterType NormalizeFilterType;
typedef typename Superclass::NormalizeFilterPointerType NormalizeFilterPointerType;
protected:
NAPCAImageFilter() { }
~NAPCAImageFilter () override { }
/** Specific functionality of NAPCA */
void GenerateTransformationMatrix() override;
}; // end of class
} // end of namespace otb
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbNAPCAImageFilter.txx"
#endif
#endif
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