/*
 * Copyright (C) 2005-2020 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 otbLandsatTMIndices_h
#define otbLandsatTMIndices_h

#include "otbMath.h"
#include "otbBandName.h"
#include "itkVariableLengthVector.h"
#include "otbFuzzyVariable.h"
#include <vector>
#include <algorithm>
#include <string>

namespace otb
{

namespace Functor
{

namespace LandsatTM
{

/// Landsat 5 or 7
enum SATType
{
  L5,
  L7
};
/// Thermal band in Kelvin or Celsius
enum DegreeType
{
  Kelvin,
  HundredsKelvin,
  Celsius
};
/// Reflectances in thousands or in (0-1)
enum ReflectanceType
{
  Thousands,
  Normalized
};
/**
   * \class LandsatTMIndexBase
   * \brief Base class for Landsat-TM indices
   *
   *  Implement operators for UnaryFunctorImageFilter templated with a
   *  vector pixel having 8 components. The order of the components
   *  defaults to the one of Lansat 7, but the Landsat 5 order is also
   *  available. Any other order of bands can be manually selected.
   *  Subclasses should overload operator(). This class assumes
   *  that the input image is calibrated in reflectances and in
   *  temperature. The reflectances can be given in the 0-1 range
   *  (Normalized) or in 0-1000 (Thousands). Temperatures can be given
   *  in Kelvin, in Kelvin*100 or in Celsius. Appropriate accessors
   *  are available for setting these units.
   *
   * \ingroup Radiometry
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class LandsatTMIndexBase
{
public:
  // operators !=
  bool operator!=(const LandsatTMIndexBase&) const
  {
    return false;
  }
  // operator ==
  bool operator==(const LandsatTMIndexBase& other) const
  {
    return !(*this != other);
  }

  /// Constructor
  LandsatTMIndexBase()
    : m_EpsilonToBeConsideredAsZero(0.0000001),
      m_TM1(0),
      m_TM2(1),
      m_TM3(2),
      m_TM4(3),
      m_TM5(4),
      m_TM60(5),
      m_TM61(5),
      m_TM62(6),
      m_TM7(7),
      m_SAT(L7),
      m_Degree(Celsius),
      m_Reflectance(Normalized)
  {
  }
  /// Desctructor
  virtual ~LandsatTMIndexBase()
  {
  }

  /** Set index, generic method */
  void SetIndex(BandName::LandsatTMBandNames band, unsigned int channel)
  {
    switch (band)
    {
    case BandName::TM1:
      m_TM1 = channel;
      break;
    case BandName::TM2:
      m_TM2 = channel;
      break;
    case BandName::TM3:
      m_TM3 = channel;
      break;
    case BandName::TM4:
      m_TM4 = channel;
      break;
    case BandName::TM5:
      m_TM5 = channel;
      break;
    case BandName::TM60:
      m_TM60 = channel;
      break;
    case BandName::TM61:
      m_TM61 = channel;
      break;
    case BandName::TM62:
      m_TM62 = channel;
      break;
    case BandName::TM7:
      m_TM7 = channel;
      break;
    }
  }
  /** Get index, generic method */
  unsigned int GetIndex(BandName::LandsatTMBandNames band) const
  {
    switch (band)
    {
    case BandName::TM1:
      return m_TM1;
      break;
    case BandName::TM2:
      return m_TM2;
      break;
    case BandName::TM3:
      return m_TM3;
      break;
    case BandName::TM4:
      return m_TM4;
      break;
    case BandName::TM5:
      return m_TM5;
      break;
    case BandName::TM60:
      return m_TM60;
      break;
    case BandName::TM61:
      return m_TM61;
      break;
    case BandName::TM62:
      return m_TM62;
      break;
    case BandName::TM7:
      return m_TM7;
      break;
    }
    return m_TM1;
  }

  unsigned int GetTM1() const
  {
    return this->m_TM1;
  }

  unsigned int GetTM2() const
  {
    return this->m_TM2;
  }

  unsigned int GetTM3() const
  {
    return this->m_TM3;
  }

  unsigned int GetTM4() const
  {
    return this->m_TM4;
  }

  unsigned int GetTM5() const
  {
    return this->m_TM5;
  }

  unsigned int GetTM60() const
  {
    return this->m_TM60;
  }

  unsigned int GetTM61() const
  {
    return this->m_TM61;
  }

  unsigned int GetTM62() const
  {
    return this->m_TM62;
  }

  unsigned int GetTM7() const
  {
    return this->m_TM7;
  }

  void SetSAT(SATType sat)
  {

    this->m_SAT = sat;

    if (sat == L5)
    {
      m_TM1  = 0;
      m_TM2  = 1;
      m_TM3  = 2;
      m_TM4  = 3;
      m_TM5  = 4;
      m_TM60 = 5;
      m_TM7  = 6;
      m_SAT  = L5;
    }
    else
    {
      m_TM1  = 0;
      m_TM2  = 1;
      m_TM3  = 2;
      m_TM4  = 3;
      m_TM5  = 4;
      m_TM61 = 5;
      m_TM62 = 6;
      m_TM7  = 7;
      m_SAT  = L7;
    }
  }

  SATType GetSAT() const
  {
    return this->m_SAT;
  }

  void SetDegree(DegreeType deg)
  {
    this->m_Degree = deg;
  }

  DegreeType GetDegre() const
  {
    return this->m_Degree;
  }

  void SetReflectance(ReflectanceType ref)
  {
    this->m_Reflectance = ref;
  }

  ReflectanceType GetReflectance() const
  {
    return this->m_Reflectance;
  }

  double GetEpsilonToBeConsideredAsZero() const
  {
    return this->m_EpsilonToBeConsideredAsZero;
  }

protected:
  /// Prepare the values so they are normalized and in C

  TInput PrepareValues(const TInput& inputPixel)
  {

    TInput newPix(inputPixel);
    if (this->m_Degree == Kelvin)
    {
      if (this->m_SAT == L5)
      {
        newPix[this->m_TM60] = newPix[this->m_TM60] - 273.15;
      }
      else
      {
        newPix[this->m_TM61] = newPix[this->m_TM61] - 273.15;
        newPix[this->m_TM62] = newPix[this->m_TM62] - 273.15;
      }
    }
    else if (this->m_Degree == HundredsKelvin)
    {
      if (this->m_SAT == L5)
      {
        newPix[this->m_TM60] = newPix[this->m_TM60] / 100. - 273.15;
      }
      else
      {
        newPix[this->m_TM61] = newPix[this->m_TM61] / 100. - 273.15;
        newPix[this->m_TM62] = newPix[this->m_TM62] / 100. - 273.15;
      }
    }
    if (this->m_Reflectance == Thousands)
    {
      newPix[this->m_TM1] = newPix[this->m_TM1] / 1000.;
      newPix[this->m_TM2] = newPix[this->m_TM2] / 1000.;
      newPix[this->m_TM3] = newPix[this->m_TM3] / 1000.;
      newPix[this->m_TM4] = newPix[this->m_TM4] / 1000.;
      newPix[this->m_TM5] = newPix[this->m_TM5] / 1000.;
      newPix[this->m_TM7] = newPix[this->m_TM7] / 1000.;
    }

    return newPix;
  }


  double m_EpsilonToBeConsideredAsZero;

  unsigned int m_TM1;
  unsigned int m_TM2;
  unsigned int m_TM3;
  unsigned int m_TM4;
  unsigned int m_TM5;
  unsigned int m_TM60;
  unsigned int m_TM61;
  unsigned int m_TM62;
  unsigned int m_TM7;

  SATType         m_SAT;
  DegreeType      m_Degree;
  ReflectanceType m_Reflectance;
};


/** \class LandsatTMIndex
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class LandsatTMIndex : public LandsatTMIndexBase<TInput, TOutput>
{
public:
  // Operator performing the work
  inline TOutput operator()(const TInput& inputPixel) const;

  /** Return the index name */
  virtual std::string GetName() const = 0;

  LandsatTMIndex()
  {
  }
  ~LandsatTMIndex() override
  {
  }
};

/** \class Bright
 *  Brightness index for LandsatTM. Computes a weighted mean of the
 *  non thermal bands as follows :
 *  \f[
 *    \frac{1}{8}\left( TM1 + TM2 + 2\times TM3 + 2\times TM4 + TM5 + TM7\right)
 *  \f]
 *  This expression is the one used in Baraldi et al. 2006, "Automatic
 *  Spectral Rule-Based Preliminary Mapping of Calibrated Landsat TM
 *  and ETM+ Images", IEEE Trans. on Geoscience and Remote Sensing,
 *  vol 44, no 9.
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class Bright : public LandsatTMIndex<TInput, TOutput>
{
public:
  /** Return the index name */
  std::string GetName() const override
  {
    return "Bright";
  }

  Bright()
  {
  }
  ~Bright() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {

    TInput newPixel(this->PrepareValues(inputPixel));
    double result = (newPixel[this->m_TM1] + newPixel[this->m_TM2] + 2 * newPixel[this->m_TM3] + 2 * newPixel[this->m_TM4] + newPixel[this->m_TM5] +
                     newPixel[this->m_TM7]) /
                    8.0;
    return static_cast<TOutput>(result);
  }
};

/** \class Vis
 *  Visible index for LandsatTM. Computes a mean of the 3 visible
 *  bands as follows:
 *  \f[
 *    \frac{1}{3}\left( TM1 + TM2 + TM3 \right)}
 *  \f]
 *  This expression is the one used in Baraldi et al. 2006, "Automatic
 *  Spectral Rule-Based Preliminary Mapping of Calibrated Landsat TM
 *  and ETM+ Images", IEEE Trans. on Geoscience and Remote Sensing,
 *  vol 44, no 9.
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class Vis : public LandsatTMIndex<TInput, TOutput>
{
public:
  /** Return the index name */
  std::string GetName() const override
  {
    return "Vis";
  }

  Vis()
  {
  }
  ~Vis() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    double result = (newPixel[this->m_TM1] + newPixel[this->m_TM2] + newPixel[this->m_TM3]) / 3.0;
    return static_cast<TOutput>(result);
  }
};


/** \class NIR
 *  NIR index for LandsatTM. Alias for the TM4 band.
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class NIR : public LandsatTMIndex<TInput, TOutput>
{
public:
  /** Return the index name */
  std::string GetName() const override
  {
    return "NIR";
  }

  NIR()
  {
  }
  ~NIR() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    double result = newPixel[this->m_TM4];
    return static_cast<TOutput>(result);
  }
};

/** \class MIR1
 *  MIR1 index for LandsatTM. Alias for the TM5 band.
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class MIR1 : public LandsatTMIndex<TInput, TOutput>
{
public:
  /** Return the index name */
  std::string GetName() const override
  {
    return "MIR1";
  }

  MIR1()
  {
  }
  ~MIR1() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    double result = newPixel[this->m_TM5];
    return static_cast<TOutput>(result);
  }
};

/** \class MIR2
 *  MIR2 index for LandsatTM. Alias for the TM7 band.
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class MIR2 : public LandsatTMIndex<TInput, TOutput>
{
public:
  /** Return the index name */
  std::string GetName() const override
  {
    return "MIR2";
  }

  MIR2()
  {
  }
  ~MIR2() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    double result = newPixel[this->m_TM7];
    return static_cast<TOutput>(result);
  }
};

/** \class TIR
 *  TIR index for LandsatTM. This is TM60 for Landsat 5 and TM62 for Landsat 7.
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class TIR : public LandsatTMIndex<TInput, TOutput>
{
public:
  /** Return the index name */
  std::string GetName() const override
  {
    return "TIR";
  }

  TIR()
  {
  }
  ~TIR() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    double result = newPixel[this->m_TM62];

    if (this->m_SAT == L5)
      result = newPixel[this->m_TM60];

    return static_cast<TOutput>(result);
  }
};

/** \class MIRTIR
 *
 *  MIRTIR index for LandsatTM.
 *
 *  In general, clouds tend
 *  to be colder and feature a higher reflectance at the 1700 nm
 *  wavelength (TM5) than cold and highly reflective barren land. To
 *  enhance this difference, a well known TM band 5/6 composite is
 *  specifically designed for cloud detection in :
 *
 *  R. Irish, "Landsat 7 automatic cloud cover assessment (ACCA)",
 *  Poc. of SPIE, vol 4049, pp. 348-355, 2000.
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class MIRTIR : public LandsatTMIndex<TInput, TOutput>
{
public:
  /** Return the index name */
  std::string GetName() const override
  {
    return "MIRTIR";
  }

  MIRTIR()
  {
  }
  ~MIRTIR() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    double tir  = newPixel[this->m_TM62];
    double mir1 = newPixel[this->m_TM5];

    if (this->m_SAT == L5)
      tir = newPixel[this->m_TM60];

    double result = 255 * (1 - mir1) * (tir + 100) / 100.;

    return static_cast<TOutput>(result);
  }
};

/** \class NDVI
 *
 *  NDVI index for LandsatTM.
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class NDVI : public LandsatTMIndex<TInput, TOutput>
{
public:
  /** Return the index name */
  std::string GetName() const override
  {
    return "NDVI";
  }

  NDVI()
  {
  }
  ~NDVI() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    double result = (newPixel[this->m_TM4] - newPixel[this->m_TM3]) / (newPixel[this->m_TM4] + newPixel[this->m_TM3] + this->m_EpsilonToBeConsideredAsZero);

    return static_cast<TOutput>(result);
  }
};

/** \class NDBSI
 *
 *  Normalized Difference Bare Soil index for LandsatTM.
 *
 *  \f[
 *    \frac{\left( TM5 - TM4 \right)}{\left( TM5 + TM4 + \epsilon \right)}
 *  \f]
 *
 *  This expression is the one used in Baraldi et al. 2006, "Automatic
 *  Spectral Rule-Based Preliminary Mapping of Calibrated Landsat TM
 *  and ETM+ Images", IEEE Trans. on Geoscience and Remote Sensing,
 *  vol 44, no 9.
 *
 *  NDBSI > -0.2 is a strong (necessary, but not sufficient)
 *  indication of the presence of bare soil areas.
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class NDBSI : public LandsatTMIndex<TInput, TOutput>
{
public:
  /** Return the index name */
  std::string GetName() const override
  {
    return "NDBSI";
  }

  NDBSI()
  {
  }
  ~NDBSI() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    double result = (newPixel[this->m_TM5] - newPixel[this->m_TM4]) / (newPixel[this->m_TM5] + newPixel[this->m_TM4] + this->m_EpsilonToBeConsideredAsZero);

    return static_cast<TOutput>(result);
  }
};

/** \class BIO
 *
 *  Another Bare Soil index for LandsatTM.
 *
 *  \f[
 *    \frac{\left( (TM5 + TM3) - (TM4 + TM1)  \right)}{\left( (TM5 + TM3) + (TM4 + TM1) \right)}
 *  \f]
 *
 *  This expression is the one used in: Roy PS, Miyatake S and Rikimaru
 *  A (1997) Biophysical Spectral Response Modelling Approach for
 *  Forest Density Stratification. FCD Mapper Users Guide.
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class BIO : public LandsatTMIndex<TInput, TOutput>
{
public:
  /** Return the index name */
  std::string GetName() const override
  {
    return "BIO";
  }

  BIO()
  {
  }
  ~BIO() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    double result = ((newPixel[this->m_TM5] + newPixel[this->m_TM3]) - (newPixel[this->m_TM4] + newPixel[this->m_TM1])) /
                    ((newPixel[this->m_TM5] + newPixel[this->m_TM3]) + (newPixel[this->m_TM4] + newPixel[this->m_TM1]));

    return static_cast<TOutput>(result);
  }
};


/** \class NDSI
 *
 *  Normalized Difference Snow index for LandsatTM.
 *
 *  \f[
 *    \frac{\left( TM2 - TM5 \right)}{\left( TM2 + TM5 + \epsilon \right)}
 *  \f]
 *
 *  This expression is the one used in R. Irish, "Landsat 7 automatic
 *  cloud cover assessment (ACCA)", Poc. of SPIE, vol 4049,
 *  pp. 348-355, 2000.
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class NDSI : public LandsatTMIndex<TInput, TOutput>
{
public:
  /** Return the index name */
  std::string GetName() const override
  {
    return "NDSI";
  }

  NDSI()
  {
  }
  ~NDSI() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    double result = (newPixel[this->m_TM2] - newPixel[this->m_TM5]) / (newPixel[this->m_TM2] + newPixel[this->m_TM5] + this->m_EpsilonToBeConsideredAsZero);

    return static_cast<TOutput>(result);
  }
};

/** \class NDSIVis
 *
 *  Baraldi's Normalized Difference Snow index for LandsatTM.
 *
 *  \f[
 *    \frac{\left( Vis - TM5 \right)}{\left( Vis + TM5 + \epsilon \right)}
 *  \f]
 *
 *  where
 *
 *  \f[
 *    Vis = \frac{1}{3}\left( TM1 + TM2 + TM3 \right)}
 *  \f]
 *
 *  This expression is the one used in Baraldi et al. 2006, "Automatic
 *  Spectral Rule-Based Preliminary Mapping of Calibrated Landsat TM
 *  and ETM+ Images", IEEE Trans. on Geoscience and Remote Sensing,
 *  vol 44, no 9.
 *
 *  and is an adaptation of the one given in R. Irish, "Landsat 7
 *  automatic cloud cover assessment (ACCA)", Poc. of SPIE, vol 4049,
 *  pp. 348-355, 2000.
 *
 *  NDSIVis > 0.5 is a strong (necessary, but not sufficient)
 *  indication of the presence of snow areas.
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class NDSIVis : public LandsatTMIndex<TInput, TOutput>
{
public:
  /** Return the index name */
  std::string GetName() const override
  {
    return "NDSIVis";
  }

  NDSIVis()
  {
  }
  ~NDSIVis() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    double vis    = (newPixel[this->m_TM1] + newPixel[this->m_TM2] + newPixel[this->m_TM3]) / 3.0;
    double result = (vis - newPixel[this->m_TM5]) / (vis + newPixel[this->m_TM5] + this->m_EpsilonToBeConsideredAsZero);

    return static_cast<TOutput>(result);
  }
};

/** \class NDBBBI
 *
 *  Normalized Difference Blue-band component in Built-up areas and
 *  Barren land index for LandsatTM.
 *
 *  \f[
 *    \frac{\left( TM1 - TM5 \right)}{\left( TM1 + TM5 + \epsilon \right)}
 *  \f]
 *
 *  This expression is the one used in Baraldi et al. 2006, "Automatic
 *  Spectral Rule-Based Preliminary Mapping of Calibrated Landsat TM
 *  and ETM+ Images", IEEE Trans. on Geoscience and Remote Sensing,
 *  vol 44, no 9.
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class NDBBBI : public LandsatTMIndex<TInput, TOutput>
{
public:
  /** Return the index name */
  std::string GetName() const override
  {
    return "NDBBBI";
  }

  NDBBBI()
  {
  }
  ~NDBBBI() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    double result = (newPixel[this->m_TM1] - newPixel[this->m_TM5]) / (newPixel[this->m_TM1] + newPixel[this->m_TM5] + this->m_EpsilonToBeConsideredAsZero);
    return static_cast<TOutput>(result);
  }
};

/** \class LandsatTMLinguisticVariables
 *
 * Implementation of the linguistic labels assigned to fuzzy sets
 *  providing a complete partition of a feature space consisting of
 *  scalar variables representing specific Landsat TM indices as
 *  described in Baraldi et al. 2006, "Automatic Spectral Rule-Based
 *  Preliminary Mapping of Calibrated Landsat TM and ETM+ Images",
 *  IEEE Trans. on Geoscience and Remote Sensing, vol 44, no 9.
 *
 * The hard coded thresholds are taken from table III of the paper.
 * The implementation proposed here is not at all optimal in the sense
 * that otb::FuzzyVariables are used where simple thresholds would be
 * enough. This is done like this so this class can also provide (TODO)
 * membership values instead of crisp ones.
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput>
class LinguisticVariables : public LandsatTMIndexBase<TInput, itk::FixedArray<unsigned int, 11>>
{
public:
  typedef typename TInput::ValueType PrecisionType;
  typedef typename itk::FixedArray<unsigned int, 11>        OutputPixelType;
  typedef otb::FuzzyVariable<unsigned short, PrecisionType> FuzzyVarType;

  enum LinguisticValues
  {
    MINlv = 0,
    Low   = MINlv,
    Medium,
    MAXlv = 2,
    High  = MAXlv
  };
  enum Indices
  {
    MINid  = 0,
    bright = MINid,
    vis,
    nir,
    mir1,
    mir2,
    tir,
    mirtir,
    ndsivis,
    ndbbbi,
    ndvi,
    MAXid = 10,
    ndbsi = MAXid
  };

  /** Return the index name */
  virtual std::string GetName() const
  {
    return "LandsatTM Linguistic Variables";
  }

  LinguisticVariables()
  {
    m_FvBright  = FuzzyVarType::New();
    m_FvVis     = FuzzyVarType::New();
    m_FvNIR     = FuzzyVarType::New();
    m_FvMIR1    = FuzzyVarType::New();
    m_FvMIR2    = FuzzyVarType::New();
    m_FvTIR     = FuzzyVarType::New();
    m_FvMIRTIR  = FuzzyVarType::New();
    m_FvNDSIVis = FuzzyVarType::New();
    m_FvNDBBBI  = FuzzyVarType::New();
    m_FvNDVI    = FuzzyVarType::New();
    m_FvNDBSI   = FuzzyVarType::New();

    PrecisionType maximumValue = itk::NumericTraits<PrecisionType>::max();
    PrecisionType minimumValue = itk::NumericTraits<PrecisionType>::NonpositiveMin();

    // the thresholds are computed wrt Baraldi's paper (normalized 0-255 values)
    m_FvBright->SetMembership(Low, minimumValue, minimumValue, 40 / 255., 40 / 255.);
    m_FvBright->SetMembership(Medium, 40 / 255., 40 / 255., 60 / 255., 60 / 255.);
    m_FvBright->SetMembership(High, 60 / 255., 60 / 255., maximumValue, maximumValue);

    m_FvVis->SetMembership(Low, minimumValue, minimumValue, 30 / 255., 30 / 255.);
    m_FvVis->SetMembership(Medium, 30 / 255., 30 / 255., 50 / 255., 50 / 255.);
    m_FvVis->SetMembership(High, 50 / 255., 50 / 255., maximumValue, maximumValue);

    m_FvNIR->SetMembership(Low, minimumValue, minimumValue, 40 / 255., 40 / 255.);
    m_FvNIR->SetMembership(Medium, 40 / 255., 40 / 255., 60 / 255., 60 / 255.);
    m_FvNIR->SetMembership(High, 60 / 255., 60 / 255., maximumValue, maximumValue);

    m_FvMIR1->SetMembership(Low, minimumValue, minimumValue, 40 / 255., 40 / 255.);
    m_FvMIR1->SetMembership(Medium, 40 / 255., 40 / 255., 60 / 255., 60 / 255.);
    m_FvMIR1->SetMembership(High, 60 / 255., 60 / 255., maximumValue, maximumValue);

    m_FvMIR2->SetMembership(Low, minimumValue, minimumValue, 30 / 255., 30 / 255.);
    m_FvMIR2->SetMembership(Medium, 30 / 255., 30 / 255., 50 / 255., 50 / 255.);
    m_FvMIR2->SetMembership(High, 50 / 255., 50 / 255., maximumValue, maximumValue);

    m_FvTIR->SetMembership(Low, minimumValue, minimumValue, 0, 0);
    m_FvTIR->SetMembership(Medium, 0, 0, 28, 28);
    m_FvTIR->SetMembership(High, 28, 28, maximumValue, maximumValue);

    m_FvMIRTIR->SetMembership(Low, minimumValue, minimumValue, 180, 180);
    m_FvMIRTIR->SetMembership(Medium, 180, 180, 220, 220);
    m_FvMIRTIR->SetMembership(High, 220, 220, maximumValue, maximumValue);

    m_FvNDSIVis->SetMembership(Low, minimumValue, minimumValue, 0, 0);
    m_FvNDSIVis->SetMembership(Medium, 0, 0, 0.5, 0.5);
    m_FvNDSIVis->SetMembership(High, 0.5, 0.5, maximumValue, maximumValue);

    m_FvNDBBBI->SetMembership(Low, minimumValue, minimumValue, -0.20, -0.20);
    m_FvNDBBBI->SetMembership(Medium, -0.20, -0.20, 0.10, 0.10);
    m_FvNDBBBI->SetMembership(High, 0.10, 0.10, maximumValue, maximumValue);

    m_FvNDVI->SetMembership(Low, minimumValue, minimumValue, 0.35, 0.35);
    m_FvNDVI->SetMembership(Medium, 0.35, 0.35, 0.6, 0.6);
    m_FvNDVI->SetMembership(High, 0.6, 0.6, maximumValue, maximumValue);

    m_FvNDBSI->SetMembership(Low, minimumValue, minimumValue, -0.20, -0.20);
    m_FvNDBSI->SetMembership(Medium, -0.20, -0.20, 0.0, 0.0);
    m_FvNDBSI->SetMembership(High, 0.0, 0.0, maximumValue, maximumValue);
  }
  ~LinguisticVariables() override
  {
  }

  inline itk::FixedArray<unsigned int, 11> operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    itk::FixedArray<unsigned int, 11> result;

    result[bright] = m_FvBright->GetMaxVar(Bright<TInput, PrecisionType>()(newPixel));
    result[vis]    = m_FvVis->GetMaxVar(Vis<TInput, PrecisionType>()(newPixel));
    result[nir]    = m_FvNIR->GetMaxVar(NIR<TInput, PrecisionType>()(newPixel));
    result[mir1]   = m_FvMIR1->GetMaxVar(MIR1<TInput, PrecisionType>()(newPixel));

    MIR2<TInput, PrecisionType> mir2F;
    mir2F.SetSAT(this->m_SAT);
    result[mir2] = m_FvMIR2->GetMaxVar(mir2F(newPixel));

    TIR<TInput, PrecisionType> tirF;
    tirF.SetSAT(this->m_SAT);
    result[tir] = m_FvTIR->GetMaxVar(tirF(newPixel));

    MIRTIR<TInput, PrecisionType> mirtirF;
    mirtirF.SetSAT(this->m_SAT);
    result[mirtir] = m_FvMIRTIR->GetMaxVar(mirtirF(newPixel));

    result[ndsivis] = m_FvNDSIVis->GetMaxVar(NDSIVis<TInput, PrecisionType>()(newPixel));

    result[ndbbbi] = m_FvNDBBBI->GetMaxVar(NDBBBI<TInput, PrecisionType>()(newPixel));

    result[ndvi] = m_FvNDVI->GetMaxVar(NDVI<TInput, PrecisionType>()(newPixel));

    result[ndbsi] = m_FvNDBSI->GetMaxVar(NDBSI<TInput, PrecisionType>()(newPixel));

    return result;
  }

protected:
  typename FuzzyVarType::Pointer m_FvBright;
  typename FuzzyVarType::Pointer m_FvVis;
  typename FuzzyVarType::Pointer m_FvNIR;
  typename FuzzyVarType::Pointer m_FvMIR1;
  typename FuzzyVarType::Pointer m_FvMIR2;
  typename FuzzyVarType::Pointer m_FvTIR;
  typename FuzzyVarType::Pointer m_FvMIRTIR;
  typename FuzzyVarType::Pointer m_FvNDSIVis;
  typename FuzzyVarType::Pointer m_FvNDBBBI;
  typename FuzzyVarType::Pointer m_FvNDVI;
  typename FuzzyVarType::Pointer m_FvNDBSI;
};


/** \class KernelSpectralRule
 *
 * Implementation of the Kernel Spectral rules for Landsat TM image
 *  land cover classification as described in table IV of Baraldi et
 *  al. 2006, "Automatic Spectral Rule-Based Preliminary Mapping of
 *  Calibrated Landsat TM and ETM+ Images", IEEE Trans. on Geoscience
 *  and Remote Sensing, vol 44, no 9.
 *
 * This is a virtual class defining the common accessors to the 14 spectral rules
 *
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class KernelSpectralRule : public LandsatTMIndexBase<TInput, TOutput>
{
public:
  typedef typename TInput::ValueType PrecisionType;
  typedef bool                       OutputPixelType;

  /** Return the index name */
  virtual std::string GetName() const
  {
    return "LandsatTM KernelSpectralRule";
  }

  KernelSpectralRule() : m_TV1(0.7), m_TV2(0.5)
  {
  }
  ~KernelSpectralRule() override
  {
  }

  void SetTV1(PrecisionType tv1)
  {
    this->m_TV1 = tv1;
  }

  void SetTV2(PrecisionType tv2)
  {
    this->m_TV2 = tv2;
  }

  PrecisionType GetTV1() const
  {
    return this->m_TV1;
  }

  PrecisionType GetTV2() const
  {
    return this->m_TV2;
  }

protected:
  /** Tolerance value 1*/
  PrecisionType m_TV1;
  /** Tolerance value 2*/
  PrecisionType m_TV2;

  void SetMinMax(const TInput& inputPixel, PrecisionType* max13, PrecisionType* min123, PrecisionType* max123, PrecisionType* min12347, PrecisionType* max12347,
                 PrecisionType* max234, PrecisionType* max45)
  {
    std::vector<PrecisionType> v13;
    v13.push_back(inputPixel[this->m_TM1]);
    v13.push_back(inputPixel[this->m_TM3]);

    *max13 = *(std::max_element(v13.begin(), v13.end()));


    std::vector<PrecisionType> v123;
    v123.push_back(inputPixel[this->m_TM1]);
    v123.push_back(inputPixel[this->m_TM2]);
    v123.push_back(inputPixel[this->m_TM3]);

    *max123 = *(std::max_element(v123.begin(), v123.end()));
    *min123 = *(std::min_element(v123.begin(), v123.end()));


    std::vector<PrecisionType> v12347;
    v12347.push_back(inputPixel[this->m_TM1]);
    v12347.push_back(inputPixel[this->m_TM2]);
    v12347.push_back(inputPixel[this->m_TM3]);
    v12347.push_back(inputPixel[this->m_TM4]);
    v12347.push_back(inputPixel[this->m_TM7]);

    *max12347 = *(std::max_element(v12347.begin(), v12347.end()));
    *min12347 = *(std::min_element(v12347.begin(), v12347.end()));

    std::vector<PrecisionType> v234;
    v234.push_back(inputPixel[this->m_TM2]);
    v234.push_back(inputPixel[this->m_TM3]);
    v234.push_back(inputPixel[this->m_TM4]);

    *max234 = *(std::max_element(v234.begin(), v234.end()));

    std::vector<PrecisionType> v45;
    v45.push_back(inputPixel[this->m_TM4]);
    v45.push_back(inputPixel[this->m_TM5]);

    *max45 = *(std::max_element(v45.begin(), v45.end()));
  }
};

/** \class ThickCloudsSpectralRule
 *
 * Implementation of the ThickCloudsSpectralRule for Landsat TM image
 *  land cover classification as described in table IV of Baraldi et
 *  al. 2006, "Automatic Spectral Rule-Based Preliminary Mapping of
 *  Calibrated Landsat TM and ETM+ Images", IEEE Trans. on Geoscience
 *  and Remote Sensing, vol 44, no 9.
 *
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class ThickCloudsSpectralRule : public KernelSpectralRule<TInput, TOutput>
{
public:
  typedef typename TInput::ValueType PrecisionType;
  typedef bool                       OutputPixelType;

  /** Return the index name */
  std::string GetName() const override
  {
    return "LandsatTM ThickCloudsSpectralRule";
  }

  ThickCloudsSpectralRule()
  {
  }
  ~ThickCloudsSpectralRule() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput        newPixel(this->PrepareValues(inputPixel));
    PrecisionType max13;
    PrecisionType max123;
    PrecisionType min123;
    PrecisionType max12347;
    PrecisionType min12347;
    PrecisionType max234;
    PrecisionType max45;
    this->SetMinMax(newPixel, &max13, &min123, &max123, &min12347, &max12347, &max234, &max45);

    bool result = (((min123 >= (this->m_TV1 * max123) && (max123 <= this->m_TV1 * newPixel[this->m_TM4])) ||
                    ((newPixel[this->m_TM2] >= this->m_TV1 * max13) && (max123 <= newPixel[this->m_TM4]))) &&
                   (newPixel[this->m_TM5] <= this->m_TV1 * newPixel[this->m_TM4]) && (newPixel[this->m_TM5] >= this->m_TV1 * max123) &&
                   (newPixel[this->m_TM7] <= this->m_TV1 * newPixel[this->m_TM4]));

    return static_cast<TOutput>(result);
  }
};

/** \class ThinCloudsSpectralRule
 *
 * Implementation of the ThinCloudsSpectralRule for Landsat TM image
 *  land cover classification as described in table IV of Baraldi et
 *  al. 2006, "Automatic Spectral Rule-Based Preliminary Mapping of
 *  Calibrated Landsat TM and ETM+ Images", IEEE Trans. on Geoscience
 *  and Remote Sensing, vol 44, no 9.
 *
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class ThinCloudsSpectralRule : public KernelSpectralRule<TInput, TOutput>
{
public:
  typedef typename TInput::ValueType PrecisionType;
  typedef bool                       OutputPixelType;

  /** Return the index name */
  std::string GetName() const override
  {
    return "LandsatTM ThinCloudsSpectralRule";
  }

  ThinCloudsSpectralRule()
  {
  }
  ~ThinCloudsSpectralRule() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput        newPixel(this->PrepareValues(inputPixel));
    PrecisionType max13;
    PrecisionType max123;
    PrecisionType min123;
    PrecisionType max12347;
    PrecisionType min12347;
    PrecisionType max234;
    PrecisionType max45;
    this->SetMinMax(newPixel, &max13, &min123, &max123, &min12347, &max12347, &max234, &max45);


    bool result = (min123 >= (this->m_TV1 * max123)) && (newPixel[this->m_TM4] >= max123) &&
                  !((newPixel[this->m_TM1] <= newPixel[this->m_TM2] && newPixel[this->m_TM2] <= newPixel[this->m_TM3] &&
                     newPixel[this->m_TM3] <= newPixel[this->m_TM4]) &&
                    (newPixel[this->m_TM3] >= this->m_TV1 * newPixel[this->m_TM4])) &&
                  (newPixel[this->m_TM4] >= this->m_TV1 * newPixel[this->m_TM5]) && (newPixel[this->m_TM5] >= this->m_TV1 * newPixel[this->m_TM4]) &&
                  (newPixel[this->m_TM5] >= this->m_TV1 * max123) && (newPixel[this->m_TM5] >= this->m_TV1 * newPixel[this->m_TM7]);

    return static_cast<TOutput>(result);
  }
};

/** \class SnowOrIceSpectralRule
 *
 * Implementation of the SnowOrIceSpectralRule for Landsat TM image
 *  land cover classification as described in table IV of Baraldi et
 *  al. 2006, "Automatic Spectral Rule-Based Preliminary Mapping of
 *  Calibrated Landsat TM and ETM+ Images", IEEE Trans. on Geoscience
 *  and Remote Sensing, vol 44, no 9.
 *
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class SnowOrIceSpectralRule : public KernelSpectralRule<TInput, TOutput>
{
public:
  typedef typename TInput::ValueType PrecisionType;
  typedef bool                       OutputPixelType;

  /** Return the index name */
  std::string GetName() const override
  {
    return "LandsatTM SnowOrIceSpectralRule";
  }

  SnowOrIceSpectralRule()
  {
  }
  ~SnowOrIceSpectralRule() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput        newPixel(this->PrepareValues(inputPixel));
    PrecisionType max13;
    PrecisionType max123;
    PrecisionType min123;
    PrecisionType max12347;
    PrecisionType min12347;
    PrecisionType max234;
    PrecisionType max45;
    this->SetMinMax(newPixel, &max13, &min123, &max123, &min12347, &max12347, &max234, &max45);


    bool result = (min123 >= (this->m_TV1 * max123)) && (newPixel[this->m_TM4] >= (this->m_TV1 * max123)) &&
                  (newPixel[this->m_TM5] <= this->m_TV2 * newPixel[this->m_TM4]) && (newPixel[this->m_TM5] <= this->m_TV1 * min123) &&
                  (newPixel[this->m_TM5] <= this->m_TV1 * max123) && (newPixel[this->m_TM7] <= this->m_TV2 * newPixel[this->m_TM4]) &&
                  (newPixel[this->m_TM7] <= this->m_TV1 * min123);

    return static_cast<TOutput>(result);
  }
};


/** \class WaterOrShadowSpectralRule
 *
 * Implementation of the WaterOrShadowSpectralRule for Landsat TM image
 *  land cover classification as described in table IV of Baraldi et
 *  al. 2006, "Automatic Spectral Rule-Based Preliminary Mapping of
 *  Calibrated Landsat TM and ETM+ Images", IEEE Trans. on Geoscience
 *  and Remote Sensing, vol 44, no 9.
 *
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class WaterOrShadowSpectralRule : public KernelSpectralRule<TInput, TOutput>
{
public:
  typedef typename TInput::ValueType PrecisionType;
  typedef bool                       OutputPixelType;

  /** Return the index name */
  std::string GetName() const override
  {
    return "LandsatTM WaterOrShadowSpectralRule";
  }

  WaterOrShadowSpectralRule()
  {
  }
  ~WaterOrShadowSpectralRule() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    bool   result = (newPixel[this->m_TM1] >= newPixel[this->m_TM2]) && (newPixel[this->m_TM2] >= newPixel[this->m_TM3]) &&
                  (newPixel[this->m_TM3] >= newPixel[this->m_TM4]) && (newPixel[this->m_TM4] >= newPixel[this->m_TM5]) &&
                  (newPixel[this->m_TM4] >= newPixel[this->m_TM7]);

    return static_cast<TOutput>(result);
  }
};


/** \class PitbogOrGreenhouseSpectralRule
 *
 * Implementation of the PitbogOrGreenhouseSpectralRule for Landsat TM image
 *  land cover classification as described in table IV of Baraldi et
 *  al. 2006, "Automatic Spectral Rule-Based Preliminary Mapping of
 *  Calibrated Landsat TM and ETM+ Images", IEEE Trans. on Geoscience
 *  and Remote Sensing, vol 44, no 9.
 *
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class PitbogOrGreenhouseSpectralRule : public KernelSpectralRule<TInput, TOutput>
{
public:
  typedef typename TInput::ValueType PrecisionType;
  typedef bool                       OutputPixelType;

  /** Return the index name */
  std::string GetName() const override
  {
    return "LandsatTM PitbogOrGreenhouseSpectralRule";
  }

  PitbogOrGreenhouseSpectralRule()
  {
  }
  ~PitbogOrGreenhouseSpectralRule() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput        newPixel(this->PrepareValues(inputPixel));
    PrecisionType max13;
    PrecisionType max123;
    PrecisionType min123;
    PrecisionType max12347;
    PrecisionType min12347;
    PrecisionType max234;
    PrecisionType max45;
    this->SetMinMax(newPixel, &max13, &min123, &max123, &min12347, &max12347, &max234, &max45);


    bool result = (newPixel[this->m_TM3] >= this->m_TV1 * newPixel[this->m_TM1]) && (newPixel[this->m_TM1] >= this->m_TV1 * newPixel[this->m_TM3]) &&
                  (max123 <= this->m_TV1 * newPixel[this->m_TM4]) && (newPixel[this->m_TM5] <= this->m_TV1 * newPixel[this->m_TM4]) &&
                  (newPixel[this->m_TM3] >= this->m_TV2 * newPixel[this->m_TM5]) && (min123 >= this->m_TV1 * newPixel[this->m_TM7]);


    return static_cast<TOutput>(result);
  }
};

/** \class DominantBlueSpectralRule
 *
 * Implementation of the DominantBlueSpectralRule for Landsat TM image
 *  land cover classification as described in table IV of Baraldi et
 *  al. 2006, "Automatic Spectral Rule-Based Preliminary Mapping of
 *  Calibrated Landsat TM and ETM+ Images", IEEE Trans. on Geoscience
 *  and Remote Sensing, vol 44, no 9.
 *
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class DominantBlueSpectralRule : public KernelSpectralRule<TInput, TOutput>
{
public:
  typedef typename TInput::ValueType PrecisionType;
  typedef bool                       OutputPixelType;

  /** Return the index name */
  std::string GetName() const override
  {
    return "LandsatTM DominantBlueSpectralRule";
  }

  DominantBlueSpectralRule()
  {
  }
  ~DominantBlueSpectralRule() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    bool   result = (newPixel[this->m_TM1] >= this->m_TV1 * newPixel[this->m_TM2]) && (newPixel[this->m_TM1] >= this->m_TV1 * newPixel[this->m_TM3]) &&
                  (newPixel[this->m_TM1] >= this->m_TV1 * newPixel[this->m_TM4]) && (newPixel[this->m_TM1] >= this->m_TV1 * newPixel[this->m_TM5]) &&
                  (newPixel[this->m_TM1] >= this->m_TV1 * newPixel[this->m_TM7]);


    return static_cast<TOutput>(result);
  }
};


/** \class VegetationSpectralRule
 *
 * Implementation of the VegetationSpectralRule for Landsat TM image
 *  land cover classification as described in table IV of Baraldi et
 *  al. 2006, "Automatic Spectral Rule-Based Preliminary Mapping of
 *  Calibrated Landsat TM and ETM+ Images", IEEE Trans. on Geoscience
 *  and Remote Sensing, vol 44, no 9.
 *
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class VegetationSpectralRule : public KernelSpectralRule<TInput, TOutput>
{
public:
  typedef typename TInput::ValueType PrecisionType;
  typedef bool                       OutputPixelType;

  /** Return the index name */
  std::string GetName() const override
  {
    return "LandsatTM VegetationSpectralRule";
  }

  VegetationSpectralRule()
  {
  }
  ~VegetationSpectralRule() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput        newPixel(this->PrepareValues(inputPixel));
    PrecisionType max13;
    PrecisionType max123;
    PrecisionType min123;
    PrecisionType max12347;
    PrecisionType min12347;
    PrecisionType max234;
    PrecisionType max45;
    this->SetMinMax(newPixel, &max13, &min123, &max123, &min12347, &max12347, &max234, &max45);


    bool result = (newPixel[this->m_TM2] >= this->m_TV2 * newPixel[this->m_TM1]) && (newPixel[this->m_TM2] >= this->m_TV1 * newPixel[this->m_TM3]) &&
                  (newPixel[this->m_TM3] < this->m_TV1 * newPixel[this->m_TM4]) && (newPixel[this->m_TM4] > max123) &&
                  (newPixel[this->m_TM5] < this->m_TV1 * newPixel[this->m_TM4]) && (newPixel[this->m_TM5] >= this->m_TV1 * newPixel[this->m_TM3]) &&
                  (newPixel[this->m_TM7] < this->m_TV1 * newPixel[this->m_TM5]);


    return static_cast<TOutput>(result);
  }
};


/** \class RangelandSpectralRule
 *
 * Implementation of the RangelandSpectralRule for Landsat TM image
 *  land cover classification as described in table IV of Baraldi et
 *  al. 2006, "Automatic Spectral Rule-Based Preliminary Mapping of
 *  Calibrated Landsat TM and ETM+ Images", IEEE Trans. on Geoscience
 *  and Remote Sensing, vol 44, no 9.
 *
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class RangelandSpectralRule : public KernelSpectralRule<TInput, TOutput>
{
public:
  typedef typename TInput::ValueType PrecisionType;
  typedef bool                       OutputPixelType;

  /** Return the index name */
  std::string GetName() const override
  {
    return "LandsatTM RangelandSpectralRule";
  }

  RangelandSpectralRule()
  {
  }
  ~RangelandSpectralRule() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput        newPixel(this->PrepareValues(inputPixel));
    PrecisionType max13;
    PrecisionType max123;
    PrecisionType min123;
    PrecisionType max12347;
    PrecisionType min12347;
    PrecisionType max234;
    PrecisionType max45;
    this->SetMinMax(newPixel, &max13, &min123, &max123, &min12347, &max12347, &max234, &max45);


    bool result = (newPixel[this->m_TM2] >= this->m_TV2 * newPixel[this->m_TM1]) && (newPixel[this->m_TM2] >= this->m_TV1 * newPixel[this->m_TM3]) &&
                  (newPixel[this->m_TM4] > max123) && (newPixel[this->m_TM3] < this->m_TV1 * newPixel[this->m_TM4]) &&
                  (newPixel[this->m_TM4] >= this->m_TV1 * newPixel[this->m_TM5]) && (newPixel[this->m_TM5] >= this->m_TV1 * newPixel[this->m_TM4]) &&
                  (newPixel[this->m_TM5] > max123) && (newPixel[this->m_TM7] < this->m_TV1 * max45) && (newPixel[this->m_TM5] >= newPixel[this->m_TM7]);


    return static_cast<TOutput>(result);
  }
};

/** \class BarrenLandOrBuiltUpOrCloudsSpectralRule
 *
 * Implementation of the BarrenLandOrBuiltUpOrCloudsSpectralRule for Landsat TM image
 *  land cover classification as described in table IV of Baraldi et
 *  al. 2006, "Automatic Spectral Rule-Based Preliminary Mapping of
 *  Calibrated Landsat TM and ETM+ Images", IEEE Trans. on Geoscience
 *  and Remote Sensing, vol 44, no 9.
 *
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class BarrenLandOrBuiltUpOrCloudsSpectralRule : public KernelSpectralRule<TInput, TOutput>
{
public:
  typedef typename TInput::ValueType PrecisionType;
  typedef bool                       OutputPixelType;

  /** Return the index name */
  std::string GetName() const override
  {
    return "LandsatTM BarrenLandOrBuiltUpOrCloudsSpectralRule";
  }

  BarrenLandOrBuiltUpOrCloudsSpectralRule()
  {
  }
  ~BarrenLandOrBuiltUpOrCloudsSpectralRule() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput        newPixel(this->PrepareValues(inputPixel));
    PrecisionType max13;
    PrecisionType max123;
    PrecisionType min123;
    PrecisionType max12347;
    PrecisionType min12347;
    PrecisionType max234;
    PrecisionType max45;
    this->SetMinMax(newPixel, &max13, &min123, &max123, &min12347, &max12347, &max234, &max45);


    bool result = (newPixel[this->m_TM3] >= this->m_TV2 * newPixel[this->m_TM1]) && (newPixel[this->m_TM3] >= this->m_TV1 * newPixel[this->m_TM2]) &&
                  (newPixel[this->m_TM4] >= this->m_TV1 * max123) && (newPixel[this->m_TM5] >= max123) &&
                  (newPixel[this->m_TM5] >= this->m_TV1 * newPixel[this->m_TM4]) && (newPixel[this->m_TM5] >= this->m_TV1 * newPixel[this->m_TM7]) &&
                  (newPixel[this->m_TM7] >= this->m_TV2 * max45);

    return static_cast<TOutput>(result);
  }
};

/** \class FlatResponseBarrenLandOrBuiltUpSpectralRule
 *
 * Implementation of the FlatResponseBarrenLandOrBuiltUpSpectralRule for Landsat TM image
 *  land cover classification as described in table IV of Baraldi et
 *  al. 2006, "Automatic Spectral Rule-Based Preliminary Mapping of
 *  Calibrated Landsat TM and ETM+ Images", IEEE Trans. on Geoscience
 *  and Remote Sensing, vol 44, no 9.
 *
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class FlatResponseBarrenLandOrBuiltUpSpectralRule : public KernelSpectralRule<TInput, TOutput>
{
public:
  typedef typename TInput::ValueType PrecisionType;
  typedef bool                       OutputPixelType;

  /** Return the index name */
  std::string GetName() const override
  {
    return "LandsatTM FlatResponseBarrenLandOrBuiltUpSpectralRule";
  }

  FlatResponseBarrenLandOrBuiltUpSpectralRule()
  {
  }
  ~FlatResponseBarrenLandOrBuiltUpSpectralRule() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput        newPixel(this->PrepareValues(inputPixel));
    PrecisionType max13;
    PrecisionType max123;
    PrecisionType min123;
    PrecisionType max12347;
    PrecisionType min12347;
    PrecisionType max234;
    PrecisionType max45;
    this->SetMinMax(newPixel, &max13, &min123, &max123, &min12347, &max12347, &max234, &max45);


    bool result = (newPixel[this->m_TM5] >= this->m_TV1 * max12347) && (min12347 >= this->m_TV2 * newPixel[this->m_TM5]);

    return static_cast<TOutput>(result);
  }
};


/** \class ShadowWithBarrenLandSpectralRule
 *
 * Implementation of the ShadowWithBarrenLandSpectralRule for Landsat TM image
 *  land cover classification as described in table IV of Baraldi et
 *  al. 2006, "Automatic Spectral Rule-Based Preliminary Mapping of
 *  Calibrated Landsat TM and ETM+ Images", IEEE Trans. on Geoscience
 *  and Remote Sensing, vol 44, no 9.
 *
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class ShadowWithBarrenLandSpectralRule : public KernelSpectralRule<TInput, TOutput>
{
public:
  typedef typename TInput::ValueType PrecisionType;
  typedef bool                       OutputPixelType;

  /** Return the index name */
  std::string GetName() const override
  {
    return "LandsatTM ShadowWithBarrenLandSpectralRule";
  }

  ShadowWithBarrenLandSpectralRule()
  {
  }
  ~ShadowWithBarrenLandSpectralRule() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    bool   result = (newPixel[this->m_TM1] >= newPixel[this->m_TM2]) && (newPixel[this->m_TM2] >= newPixel[this->m_TM3]) &&
                  (newPixel[this->m_TM3] >= this->m_TV1 * newPixel[this->m_TM4]) && (newPixel[this->m_TM1] >= newPixel[this->m_TM5]) &&
                  (newPixel[this->m_TM5] >= this->m_TV1 * newPixel[this->m_TM4]) && (newPixel[this->m_TM5] >= this->m_TV1 * newPixel[this->m_TM7]);

    return static_cast<TOutput>(result);
  }
};


/** \class ShadowWithVegetationSpectralRule
 *
 * Implementation of the ShadowWithVegetationSpectralRule for Landsat TM image
 *  land cover classification as described in table IV of Baraldi et
 *  al. 2006, "Automatic Spectral Rule-Based Preliminary Mapping of
 *  Calibrated Landsat TM and ETM+ Images", IEEE Trans. on Geoscience
 *  and Remote Sensing, vol 44, no 9.
 *
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class ShadowWithVegetationSpectralRule : public KernelSpectralRule<TInput, TOutput>
{
public:
  typedef typename TInput::ValueType PrecisionType;
  typedef bool                       OutputPixelType;

  /** Return the index name */
  std::string GetName() const override
  {
    return "LandsatTM ShadowWithVegetationSpectralRule";
  }

  ShadowWithVegetationSpectralRule()
  {
  }
  ~ShadowWithVegetationSpectralRule() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    bool   result = (newPixel[this->m_TM1] >= newPixel[this->m_TM2]) && (newPixel[this->m_TM2] >= newPixel[this->m_TM3]) &&
                  (newPixel[this->m_TM1] >= this->m_TV2 * newPixel[this->m_TM4]) && (newPixel[this->m_TM3] < this->m_TV1 * newPixel[this->m_TM4]) &&
                  (newPixel[this->m_TM5] < this->m_TV1 * newPixel[this->m_TM4]) && (newPixel[this->m_TM3] >= this->m_TV2 * newPixel[this->m_TM5]) &&
                  (newPixel[this->m_TM7] < this->m_TV1 * newPixel[this->m_TM4]);

    return static_cast<TOutput>(result);
  }
};


/** \class ShadowCloudOrSnowSpectralRule
 *
 * Implementation of the ShadowCloudOrSnowSpectralRule for Landsat TM image
 *  land cover classification as described in table IV of Baraldi et
 *  al. 2006, "Automatic Spectral Rule-Based Preliminary Mapping of
 *  Calibrated Landsat TM and ETM+ Images", IEEE Trans. on Geoscience
 *  and Remote Sensing, vol 44, no 9.
 *
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class ShadowCloudOrSnowSpectralRule : public KernelSpectralRule<TInput, TOutput>
{
public:
  typedef typename TInput::ValueType PrecisionType;
  typedef bool                       OutputPixelType;

  /** Return the index name */
  std::string GetName() const override
  {
    return "LandsatTM ShadowCloudOrSnowSpectralRule";
  }

  ShadowCloudOrSnowSpectralRule()
  {
  }
  ~ShadowCloudOrSnowSpectralRule() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput        newPixel(this->PrepareValues(inputPixel));
    PrecisionType max13;
    PrecisionType max123;
    PrecisionType min123;
    PrecisionType max12347;
    PrecisionType min12347;
    PrecisionType max234;
    PrecisionType max45;
    this->SetMinMax(newPixel, &max13, &min123, &max123, &min12347, &max12347, &max234, &max45);


    bool result = (newPixel[this->m_TM1] >= this->m_TV1 * max234) && (max234 >= this->m_TV1 * newPixel[this->m_TM1]) &&
                  (newPixel[this->m_TM5] < newPixel[this->m_TM1]) && (newPixel[this->m_TM7] < this->m_TV1 * newPixel[this->m_TM1]);

    return static_cast<TOutput>(result);
  }
};


/** \class WetlandSpectralRule
 *
 * Implementation of the WetlandSpectralRule for Landsat TM image
 *  land cover classification as described in table IV of Baraldi et
 *  al. 2006, "Automatic Spectral Rule-Based Preliminary Mapping of
 *  Calibrated Landsat TM and ETM+ Images", IEEE Trans. on Geoscience
 *  and Remote Sensing, vol 44, no 9.
 *
 *
 * \ingroup Functor
 * \ingroup Radiometry
 * \ingroup LandsatTMIndices
 *
 * \ingroup OTBIndices
 */
template <class TInput, class TOutput>
class WetlandSpectralRule : public KernelSpectralRule<TInput, TOutput>
{
public:
  typedef typename TInput::ValueType PrecisionType;
  typedef bool                       OutputPixelType;

  /** Return the index name */
  std::string GetName() const override
  {
    return "LandsatTM WetlandSpectralRule";
  }

  WetlandSpectralRule()
  {
  }
  ~WetlandSpectralRule() override
  {
  }

  inline TOutput operator()(const TInput& inputPixel)
  {
    TInput newPixel(this->PrepareValues(inputPixel));
    bool   result = (newPixel[this->m_TM1] >= newPixel[this->m_TM2]) && (newPixel[this->m_TM2] >= newPixel[this->m_TM3]) &&
                  (newPixel[this->m_TM1] >= this->m_TV1 * newPixel[this->m_TM4]) && (newPixel[this->m_TM3] < newPixel[this->m_TM4]) &&
                  (newPixel[this->m_TM4] >= this->m_TV1 * newPixel[this->m_TM5]) && (newPixel[this->m_TM5] >= this->m_TV1 * newPixel[this->m_TM4]) &&
                  (newPixel[this->m_TM3] >= this->m_TV2 * newPixel[this->m_TM5]) && (newPixel[this->m_TM5] >= newPixel[this->m_TM7]);

    return static_cast<TOutput>(result);
  }
};


} // namespace LandsatTM
} // namespace Functor
} // namespace otb

#endif
