otbImageDimensionalityReduction.cxx

/*
 * Copyright (C) 2005-2019 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.
 */
#include "otbWrapperApplication.h"
#include "otbWrapperApplicationFactory.h"

#include "itkUnaryFunctorImageFilter.h"
#include "otbChangeLabelImageFilter.h"
#include "otbStandardWriterWatcher.h"
#include "otbStatisticsXMLFileReader.h"
#include "otbShiftScaleVectorImageFilter.h"
#include "otbImageDimensionalityReductionFilter.h"
#include "otbMultiToMonoChannelExtractROI.h"
#include "otbImageToVectorImageCastFilter.h"
#include "otbDimensionalityReductionModelFactory.h"

namespace otb
{
namespace Functor
{
/**
 * simple affine function : y = ax+b
 */
template<class TInput, class TOutput>
class AffineFunctor
{
public:
  typedef double InternalType;
  
  // constructor
  AffineFunctor() : m_A(1.0),m_B(0.0) {}
  
  // destructor
  virtual ~AffineFunctor() {}
  
  void SetA(InternalType a)
    {
    m_A = a;
    }
  
  void SetB(InternalType b)
    {
    m_B = b;
    }
  
  inline TOutput operator()(const TInput & x) const
    {
    return static_cast<TOutput>( static_cast<InternalType>(x)*m_A + m_B);
    }
private:
  InternalType m_A;
  InternalType m_B;
};