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Olena
User documentation 2.1
An Image Processing Platform
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sauvola.cc
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// Copyright (C) 2011 EPITA Research and Development Laboratory (LRDE)
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//
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// This file is part of Olena.
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//
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// Olena is free software: you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation, version 2 of the License.
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//
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// Olena is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Olena. If not, see <http://www.gnu.org/licenses/>.
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//
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// As a special exception, you may use this file as part of a free
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// software project without restriction. Specifically, if other files
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// instantiate templates or use macros or inline functions from this
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// file, or you compile this file and link it with other files to produce
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// an executable, this file does not by itself cause the resulting
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// executable to be covered by the GNU General Public License. This
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// exception does not however invalidate any other reasons why the
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// executable file might be covered by the GNU General Public License.
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#include <mln/core/image/image2d.hh>
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#include <mln/data/compare.hh>
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#include <mln/value/int_u8.hh>
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#include <mln/io/pgm/load.hh>
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#include <mln/io/pbm/load.hh>
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#include <scribo/binarization/sauvola.hh>
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#include "tests/data.hh"
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int
main()
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{
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using namespace
mln;
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// even height and width
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{
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image2d<value::int_u8>
input;
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io::pgm::load
(input, MILENA_IMG_DIR
"/lena.pgm"
);
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image2d<bool>
bin =
scribo::binarization::sauvola
(input, 101);
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image2d<bool>
ref;
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io::pbm::load
(ref, SCRIBO_TESTS_DIR
"binarization/sauvola.ref.pbm"
);
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mln_assertion(bin == ref);
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}
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// even height and odd width
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{
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image2d<value::int_u8>
input;
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io::pgm::load
(input, SCRIBO_IMG_DIR
"/lena_wodd_heven.pgm"
);
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image2d<bool>
bin =
scribo::binarization::sauvola
(input, 101);
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image2d<bool>
ref;
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io::pbm::load
(ref, SCRIBO_TESTS_DIR
"binarization/sauvola_wodd_heven.ref.pbm"
);
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mln_assertion(bin == ref);
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}
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// odd height and even width
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{
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image2d<value::int_u8>
input;
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io::pgm::load
(input, SCRIBO_IMG_DIR
"/lena_weven_hodd.pgm"
);
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image2d<bool>
bin =
scribo::binarization::sauvola
(input, 101);
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image2d<bool>
ref;
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io::pbm::load
(ref, SCRIBO_TESTS_DIR
"binarization/sauvola_weven_hodd.ref.pbm"
);
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mln_assertion(bin == ref);
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}
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// odd height and width
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{
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image2d<value::int_u8>
input;
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io::pgm::load
(input, SCRIBO_IMG_DIR
"/lena_wodd_hodd.pgm"
);
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image2d<bool>
bin =
scribo::binarization::sauvola
(input, 101);
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image2d<bool>
ref;
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io::pbm::load
(ref, SCRIBO_TESTS_DIR
"binarization/sauvola_wodd_hodd.ref.pbm"
);
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mln_assertion(bin == ref);
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}
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}
scribo
tests
binarization
sauvola.cc
Copyright (C) 2012 EPITA Research and Development Laboratory (LRDE)