sauvola_pgm.cc 2.07 KB
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// Copyright (C) 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/io/pgm/load.hh>
#include <mln/io/pbm/save.hh>

#include <scribo/binarization/sauvola.hh>
#include <scribo/debug/usage.hh>

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#include <mln/util/timer.hh>
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const char *args_desc[][2] =
{
  { "input.pgm", "A gray level image." },
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  { "w", "Window size." },
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  {0, 0}
};


int main(int argc, char *argv[])
{
  using namespace mln;
  using value::int_u8;

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  if (argc != 4)
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    return scribo::debug::usage(argv,
				"Binarization of a gray level image based on Sauvola's algorithm.",
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				"input.pgm w output.pbm",
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				args_desc, "A binary image.");

  trace::entering("main");

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  unsigned w = atoi(argv[2]);

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  image2d<int_u8> input;
  io::pgm::load(input, argv[1]);

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  util::timer t;
  t.start();
  image2d<bool> out = scribo::binarization::sauvola(input, w);
  t.stop();
  std::cout << t << std::endl;


  io::pbm::save(out, argv[3]);
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  trace::exiting("main");
}