otbFastICAInternalOptimizerVectorImageFilter.h

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/*
 * Copyright (C) 2005-2024 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 otbFastICAInternalOptimizerVectorImageFilter_h
#define otbFastICAInternalOptimizerVectorImageFilter_h
 
#include "otbMacro.h"
#include "otbMatrixImageFilter.h"
#include "otbStreamingStatisticsVectorImageFilter.h"
#include "otbPersistentImageFilter.h"
#include <functional>
 
namespace otb
{
template <class TInputImage, class TOutputImage>
class ITK_EXPORT FastICAInternalOptimizerVectorImageFilter : public PersistentImageFilter<TInputImage, TOutputImage>
{
public:
  typedef FastICAInternalOptimizerVectorImageFilter Self;
  typedef itk::ImageToImageFilter<TInputImage, TOutputImage> Superclass;
  typedef itk::SmartPointer<Self>       Pointer;
  typedef itk::SmartPointer<const Self> ConstPointer;
 
  itkNewMacro(Self);
 
  itkTypeMacro(FastICAInternalOptimizerVectorImageFilter, ImageToImageFilter);
 
  itkStaticConstMacro(InputImageDimension, unsigned int, TInputImage::ImageDimension);
  itkStaticConstMacro(OutputImageDimension, unsigned int, TOutputImage::ImageDimension);
 
  typedef TInputImage                         InputImageType;
  typedef typename InputImageType::RegionType InputRegionType;
 
  typedef TOutputImage                         OutputImageType;
  typedef typename OutputImageType::RegionType OutputRegionType;
 
  typedef StreamingStatisticsVectorImageFilter<InputImageType> CovarianceEstimatorFilterType;
  typedef typename CovarianceEstimatorFilterType::Pointer      CovarianceEstimatorFilterPointerType;
 
  typedef typename CovarianceEstimatorFilterType::RealType         RealType;
  typedef typename CovarianceEstimatorFilterType::RealPixelType    VectorType;
  typedef typename CovarianceEstimatorFilterType::MatrixObjectType MatrixObjectType;
  typedef typename MatrixObjectType::ComponentType                 MatrixType;
  typedef typename MatrixType::InternalMatrixType                  InternalMatrixType;
  typedef typename InternalMatrixType::element_type                MatrixElementType;
 
  typedef MatrixImageFilter<TInputImage, TOutputImage> TransformFilterType;
  typedef typename TransformFilterType::Pointer TransformFilterPointerType;
 
  typedef std::function<double(double)> NonLinearityType;
 
  itkSetMacro(CurrentBandForLoop, unsigned int);
  itkGetMacro(CurrentBandForLoop, unsigned int);
 
  itkGetMacro(W, InternalMatrixType);
  itkSetMacro(W, InternalMatrixType);
 
  void SetNonLinearity(NonLinearityType NonLinearity, NonLinearityType NonLinearityDerivative)
  {
    m_NonLinearity           = NonLinearity;
    m_NonLinearityDerivative = NonLinearityDerivative;
    this->Modified();
  }
 
  itkGetMacro(Beta, double);
  itkGetMacro(Den, double);
 
  virtual void Reset() override;
 
  virtual void Synthetize() override;
 
protected:
  FastICAInternalOptimizerVectorImageFilter();
  ~FastICAInternalOptimizerVectorImageFilter() override
  {
  }
 
  void GenerateOutputInformation() override;
  void ThreadedGenerateData(const OutputRegionType&, itk::ThreadIdType) override;
 
  unsigned int m_CurrentBandForLoop;
 
  std::vector<double> m_BetaVector;
  std::vector<double> m_DenVector;
  std::vector<double> m_NbSamples;
 
  double m_Beta;
  double m_Den;
 
  InternalMatrixType         m_W;
  NonLinearityType           m_NonLinearity;
  NonLinearityType           m_NonLinearityDerivative;
  TransformFilterPointerType m_TransformFilter;
 
private:
  FastICAInternalOptimizerVectorImageFilter(const Self&); // not implemented
  void operator=(const Self&);                            // not implemented
};                                                        // end of class
 
} // end of namespace otb
 
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbFastICAInternalOptimizerVectorImageFilter.hxx"
#endif
 
 
#endif