threshold.h

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// Copyright (c) 2012-2019 University of Lyon and CNRS (France).
// All rights reserved.
//
// This file is part of MEPP2; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 3 of
// the License, or (at your option) any later version.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#pragma once
 
#include "genericparametricmodel.h"
 
#include "contrastmasking.h"
#include "contrastsensitivity.h"
 
//-----------------------------------------------------------------------------------
 
struct NWHWD16_Param
{
  SarkisonCSF csf;
  DalyMasking masking;
};
 
 
class NWHWD16_Threshold
    : public GenericParametricModel< NWHWD16_Param, Eigen::Vector2d, double >
{
 
  //-----------------------------------------------------------------------------------
 
public:
  NWHWD16_Threshold()
      : GenericParametricModel< ParameterType, InputType, OutputType >()
  {
    default_params();
  }
 
  NWHWD16_Threshold(const ParameterType &param)
      : GenericParametricModel< ParameterType, InputType, OutputType >(param)
  {
  }
 
  virtual ~NWHWD16_Threshold() {}
 
  //-----------------------------------------------------------------------------------
 
public:
  virtual void compute(const InputType &in, OutputType &out) const
  {
    double c = in(0);
    double f = in(1);
    double _csf = m_param.csf(f);
    out = m_param.masking(c * _csf) / _csf;
  }
 
  //-----------------------------------------------------------------------------------
 
protected:
  virtual void default_params()
  {
    m_param.csf = SarkisonCSF(SarkisonCSF::ParameterType(-15.13, 0.0096, 0.64));
    m_param.masking =
        DalyMasking(DalyMasking::ParameterType(0.0078, 88.29, 1.0, 4.207));
  }
};
 
//=================================================================================//