otbMDMDNMFImageFilter.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 otbMDMDNMFImageFilter_h
#define otbMDMDNMFImageFilter_h
 
#include "itkImageToImageFilter.h"
#include "otbVectorImageToMatrixImageFilter.h"
 
#include "vnl/vnl_matrix.h"
#include "vnl/vnl_vector.h"
 
namespace otb
{
template <class TInputImage, class TOutputImage>
class ITK_EXPORT MDMDNMFImageFilter : public itk::ImageToImageFilter<TInputImage, TOutputImage>
{
public:
  typedef MDMDNMFImageFilter Self;
  typedef itk::ImageToImageFilter<TInputImage, TOutputImage> Superclass;
  typedef itk::SmartPointer<Self>       Pointer;
  typedef itk::SmartPointer<const Self> ConstPointer;
 
  itkNewMacro(Self);
 
  itkTypeMacro(MDMDNMFImageFilter, ImageToImageFilter);
 
  typedef TInputImage                           InputImageType;
  typedef typename InputImageType::Pointer      InputPointerType;
  typedef typename InputImageType::ConstPointer InputConstPointerType;
  typedef typename InputImageType::IndexType    InputIndexType;
  typedef typename InputImageType::SizeType     InputSizeType;
  typedef typename InputImageType::PixelType    InputPixelType;
 
  typedef TOutputImage                         OutputImageType;
  typedef typename OutputImageType::Pointer    OutputPointerType;
  typedef typename OutputImageType::IndexType  OutputIndexType;
  typedef typename OutputImageType::OffsetType OutputOffsetType;
  typedef typename OutputImageType::SizeType   OutputSizeType;
  typedef typename OutputImageType::RegionType OutputImageRegionType;
  typedef typename OutputImageType::PixelType  OutputPixelType;
 
  /* Matrix type */
  typedef double                                                       PrecisionType;
  typedef vnl_matrix<PrecisionType>                                    MatrixType;
  typedef typename otb::VectorImageToMatrixImageFilter<InputImageType> VectorImageToMatrixImageFilterType;
 
  /* vector type */
  typedef vnl_vector<double> VectorType;
 
  MatrixType GetEndmembersMatrix() const
  {
    return m_Endmembers;
  }
  void SetEndmembersMatrix(const MatrixType& m)
  {
    m_Endmembers = m;
  }
 
  itkSetMacro(MaxIter, unsigned int);
  itkGetMacro(MaxIter, unsigned int);
 
  itkSetMacro(CritStopValue, double);
  itkGetMacro(CritStopValue, double);
 
  itkSetMacro(Delt, double);
  itkGetMacro(Delt, double);
 
  itkSetMacro(LambdD, double);
  itkGetMacro(LambdD, double);
 
  itkSetMacro(LambdS, double);
  itkGetMacro(LambdS, double);
 
protected:
  MDMDNMFImageFilter();
  ~MDMDNMFImageFilter() override
  {
  }
  void PrintSelf(std::ostream& os, itk::Indent indent) const override;
 
  void GenerateInputRequestedRegion() override;
 
  void GenerateOutputInformation() override;
 
  void GenerateData() override;
 
 
private:
  MDMDNMFImageFilter(const Self&) = delete;
  void operator=(const Self&) = delete;
 
  static void AddOneRowOfOnes(const MatrixType& m, MatrixType& M);
 
  static double Criterion(const MatrixType& X, const MatrixType& A, const MatrixType& S, const double& delt, const double& lambdS, const double& lambdD);
 
  static void EvalGradS(const MatrixType& X, const MatrixType& A, const MatrixType& S, const double& delt, const double& lambdS, MatrixType& gradS);
 
  static void EvalGradA(const MatrixType& X, const MatrixType& A, const MatrixType& S, const double& delt, const double& lambdD, MatrixType& gradA);
 
  static double Call(const MatrixType& variMat, const MatrixType& fixedMat, const MatrixType& X, const double& delt, const double& lambdS, const double& lambdD,
                     const bool isDirectEvalDirection);
 
  static void ProjGradOneStep(const MatrixType& X, const MatrixType& fixedMat, const MatrixType& gradVariMat, const double& sig, const double& betinit,
                              const double& delt, const double& lambdS, const double& lambdD, MatrixType& variMat, double& alph,
                              const bool isDirectEvalDirection);
 
  static void SetNegativeCoefficientsToZero(MatrixType& M);
 
  static MatrixType TermByTermMatrixProduct(const MatrixType& M1, const MatrixType& M2);
 
  static double SumMatrixElements(const MatrixType& M);
 
  static bool ArmijoTest(const double& sig, const MatrixType variMat, const MatrixType& newVariMat, const double& evalf, const double& newEvalf,
                         const MatrixType& gradVariMat, const double& alph);
 
  // attributes
  MatrixType   m_Endmembers;
  unsigned int m_MaxIter;
  double       m_CritStopValue;
 
  // Optimized function parameters
  double m_Delt;
  double m_LambdD;
  double m_LambdS;
};
 
} // end namespace otb
 
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbMDMDNMFImageFilter.hxx"
#endif
 
#endif