ivl/details/image/impl/image_conversions.hpp

/* This file is part of the ivl C++ library <http://image.ntua.gr/ivl>.
   A C++ template library extending syntax towards mathematical notation.

   Copyright (C) 2012 Yannis Avrithis <iavr@image.ntua.gr>
   Copyright (C) 2012 Kimon Kontosis <kimonas@image.ntua.gr>

   ivl is free software; you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License 
   version 3 as published by the Free Software Foundation.

   Alternatively, you can redistribute it and/or modify it under the terms 
   of the GNU General Public License version 2 as published by the Free 
   Software Foundation.

   ivl is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
   See the GNU General Public License for more details.

   You should have received a copy of the GNU General Public License 
   and a copy of the GNU Lesser General Public License along 
   with ivl. If not, see <http://www.gnu.org/licenses/>. */

#ifndef IVL_IMAGE_DETAILS_IMAGE_CONVERSIONS_HPP
#define IVL_IMAGE_DETAILS_IMAGE_CONVERSIONS_HPP

namespace ivl {
namespace image_details {

// conversion between floating point <-> integer channel values
inline int value_conv(int x, int foo)
{
        return x;
}
inline double value_conv(int x, double foo)
{
        return (double)x / (double)255.0;
}
inline int value_conv(double x, int foo)
{
        return (int) ( 255.0 * x );
}
inline double value_conv(double x, double foo)
{
        return x;
}

} /* namespace image_details */
} /* namespace ivl */

#endif // IVL_IMAGE_DETAILS_IMAGE_CONVERSIONS_HPP