otbMaximumAutocorrelationFactorImageFilter.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 otbMaximumAutocorrelationFactorImageFilter_h
#define otbMaximumAutocorrelationFactorImageFilter_h
 
 
#include "otbStreamingStatisticsVectorImageFilter.h"
#include "otbConcatenateVectorImageFilter.h"
#include "itkNumericTraits.h"
 
#include "vnl/vnl_vector.h"
#include "vnl/vnl_matrix.h"
 
namespace otb
{
 
template <class TInputImage, class TOutputImage>
class ITK_EXPORT MaximumAutocorrelationFactorImageFilter : public itk::ImageToImageFilter<TInputImage, TOutputImage>
{
public:
  typedef MaximumAutocorrelationFactorImageFilter Self;
  typedef itk::ImageToImageFilter<TInputImage, TOutputImage> Superclass;
  typedef itk::SmartPointer<Self>       Pointer;
  typedef itk::SmartPointer<const Self> ConstPointer;
 
  itkNewMacro(Self);
 
  itkTypeMacro(MaximumAutocorrelationFactorImageFilter, ImageToImageFilter);
 
  typedef TInputImage                                                   InputImageType;
  typedef typename InputImageType::Pointer                              InputImagePointer;
  typedef typename InputImageType::ConstPointer                         InputImageConstPointer;
  typedef typename InputImageType::RegionType                           InputImageRegionType;
  typedef typename InputImageRegionType::SizeType                       InputImageSizeType;
  typedef typename InputImageRegionType::IndexType                      InputImageIndexType;
  typedef typename InputImageType::PixelType                            InputImagePixelType;
  typedef typename InputImageType::ValueType                            InputImageValueType;
  typedef TOutputImage                                                  OutputImageType;
  typedef typename OutputImageType::Pointer                             OutputImagePointer;
  typedef typename OutputImageType::RegionType                          OutputImageRegionType;
  typedef typename OutputImageType::PixelType                           OutputImagePixelType;
  typedef typename InputImageType::InternalPixelType                    InputInternalPixelType;
  typedef typename itk::NumericTraits<InputInternalPixelType>::RealType InternalPixelType;
 
  typedef VectorImage<InternalPixelType, 2> InternalImageType;
 
 
  typedef StreamingStatisticsVectorImageFilter<InternalImageType> CovarianceEstimatorType;
  typedef typename CovarianceEstimatorType::Pointer               CovarianceEstimatorPointer;
  typedef typename CovarianceEstimatorType::MatrixObjectType      MatrixObjectType;
  typedef typename MatrixObjectType::ComponentType                MatrixType;
  typedef typename MatrixType::InternalMatrixType                 InternalMatrixType;
  typedef typename CovarianceEstimatorType::RealPixelType         VectorType;
 
  typedef typename VectorType::ValueType RealType;
  typedef vnl_vector<RealType>           VnlVectorType;
  typedef vnl_matrix<RealType>           VnlMatrixType;
 
  itkGetMacro(V, VnlMatrixType);
 
  itkGetMacro(AutoCorrelation, VnlVectorType);
 
  itkGetObjectMacro(CovarianceEstimator, CovarianceEstimatorType);
 
  itkGetObjectMacro(CovarianceEstimatorH, CovarianceEstimatorType);
 
  itkGetObjectMacro(CovarianceEstimatorV, CovarianceEstimatorType);
 
protected:
  MaximumAutocorrelationFactorImageFilter();
  ~MaximumAutocorrelationFactorImageFilter() override
  {
  }
 
  void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread, itk::ThreadIdType threadId) override;
 
  void GenerateOutputInformation() override;
 
private:
  MaximumAutocorrelationFactorImageFilter(const Self&) = delete;
  void operator=(const Self&) = delete;
 
  CovarianceEstimatorPointer m_CovarianceEstimator;
 
  CovarianceEstimatorPointer m_CovarianceEstimatorH;
 
  CovarianceEstimatorPointer m_CovarianceEstimatorV;
 
  VnlMatrixType m_V;
 
  VnlVectorType m_Mean;
 
  VnlVectorType m_AutoCorrelation;
};
 
} // end namespace otb
 
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbMaximumAutocorrelationFactorImageFilter.hxx"
#endif
 
#endif