otbEstimateInnerProductPCAImageFilter.h

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/*
 * Copyright (C) 2005-2022 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 otbEstimateInnerProductPCAImageFilter_h
#define otbEstimateInnerProductPCAImageFilter_h
 
#include "itkImageToImageFilter.h"
#include "otbStreamingInnerProductVectorImageFilter.h"
 
namespace otb
{
template <class TInputImage, class TOutputImage>
class ITK_EXPORT EstimateInnerProductPCAImageFilter : public itk::ImageToImageFilter<TInputImage, TOutputImage>
{
public:
  typedef EstimateInnerProductPCAImageFilter Self;
  typedef typename itk::ImageToImageFilter<TInputImage, TOutputImage> Superclass;
  typedef itk::SmartPointer<Self>       Pointer;
  typedef itk::SmartPointer<const Self> ConstPointer;
 
  itkNewMacro(Self);
 
  itkTypeMacro(EstimateInnerProductPCAImageFilter, ImageToImageFilter);
 
  typedef TInputImage                                 InputImageType;
  typedef typename InputImageType::Pointer            InputImagePointer;
  typedef typename InputImageType::PixelType          InputPixelType;
  typedef typename InputImageType::RegionType         InputImageRegionType;
  typedef TOutputImage                                OutputImageType;
  typedef typename OutputImageType::Pointer           OutputImagePointer;
  typedef typename OutputImageType::RegionType        OutputImageRegionType;
  typedef typename OutputImageType::PixelType         OutputPixelType;
  typedef typename OutputImageType::InternalPixelType OutputInternalPixelType;
 
  typedef StreamingInnerProductVectorImageFilter<InputImageType> StreamingInnerProductType;
  typedef typename StreamingInnerProductType::Pointer            StreamingInnerProductPointer;
  typedef typename StreamingInnerProductType::MatrixType         MatrixType;
  typedef typename StreamingInnerProductType::MatrixObjectType   MatrixObjectType;
 
  itkSetMacro(NumberOfPrincipalComponentsRequired, unsigned int);
  itkGetMacro(NumberOfPrincipalComponentsRequired, unsigned int);
 
  itkSetMacro(CenterData, bool);
  itkGetMacro(CenterData, bool);
  itkBooleanMacro(CenterData);
 
protected:
  EstimateInnerProductPCAImageFilter();
  ~EstimateInnerProductPCAImageFilter() override
  {
  }
 
  void GenerateOutputInformation(void) override;
 
  void BeforeThreadedGenerateData() override;
 
  void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread, itk::ThreadIdType threadId) override;
  void PrintSelf(std::ostream& os, itk::Indent indent) const override;
 
private:
  EstimateInnerProductPCAImageFilter(const Self&) = delete;
  void operator=(const Self&) = delete;
 
  unsigned int m_NumberOfPrincipalComponentsRequired;
 
  bool m_CenterData;
 
  MatrixType m_InnerProduct;
 
  MatrixType m_EigenVectorsOfInnerProductMatrix;
};
 
} // end namespace otb
 
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbEstimateInnerProductPCAImageFilter.hxx"
#endif
 
#endif