rgb_to_hsl.cc

// Copyright (C) 2008, 2009 EPITA Research and Development Laboratory (LRDE)
//
// This file is part of Olena.
//
// Olena is free software: you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation, version 2 of the License.
//
// Olena 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
// along with Olena.  If not, see <http://www.gnu.org/licenses/>.
//
// As a special exception, you may use this file as part of a free
// software project without restriction.  Specifically, if other files
// instantiate templates or use macros or inline functions from this
// file, or you compile this file and link it with other files to produce
// an executable, this file does not by itself cause the resulting
// executable to be covered by the GNU General Public License.  This
// exception does not however invalidate any other reasons why the
// executable file might be covered by the GNU General Public License.

#include <mln/core/image/image2d.hh>

#include <mln/value/hsl.hh>
#include <mln/value/rgb8.hh>

#include <mln/fun/v2v/rgb_to_hsl.hh>

#include <mln/data/compare.hh>
#include <mln/data/transform.hh>

#include <mln/make/image.hh>

#include <mln/debug/println.hh>

using mln::value::rgb8;
using mln::value::hsl_f;

rgb8 dat[][2] = { { rgb8(0,0,0), rgb8(255,255,255) },
                  { rgb8(128,128,128), rgb8(90,90, 90) } };

hsl_f ref[][2] = { { hsl_f(0,0,0), hsl_f(0,0,1.0) },
                   { hsl_f(0,0,128.0 / 255.0), hsl_f(0,0,90.0 / 255.0) } };

int main()
{
  using namespace mln;

  image2d<value::rgb8> ima = make::image(dat);
  image2d<hsl_f> ref_ima = make::image(ref);
  image2d<hsl_f> ima_hsl = data::transform(ima,
                                            fun::v2v::f_rgb_to_hsl_f);

  mln_assertion(ima_hsl == ref_ima);
}