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User documentation 2.1
An Image Processing Platform
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breadth_first_thinning.cc
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// Copyright (C) 2010, 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/core/alias/neighb2d.hh>
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#include <mln/topo/skeleton/breadth_first_thinning.hh>
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#include <mln/topo/is_simple_point2d.hh>
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#include <mln/topo/detach_point.hh>
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#include <mln/io/pbm/all.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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typedef
image2d<bool>
I;
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typedef
neighb2d
N;
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// Add a border of (at least) 1 pixel, to a guarantee a meaningful
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// result of the computation of connectivity numbers (called within
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// is_simple_2d); indeed, this computation always expects each pixel
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// to have 8 neighboring sites.
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border::thickness
= 1;
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I input =
io::pbm::load
(MLN_IMG_DIR
"/small.pbm"
);
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// FIXME: Use a dual neighborhood instead?
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// Foreground neighborhood.
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neighb2d
nbh_fg =
c4
();
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// Background neighborhood.
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neighb2d
nbh_bg =
c8
();
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// Simplicity criterion functor.
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topo::is_simple_point2d<I, N>
is_simple(nbh_fg, nbh_bg);
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// Simple point detach procedure.
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topo::detach_point<I>
detach;
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I output =
topo::skeleton::breadth_first_thinning
(input, nbh_fg,
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is_simple,
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detach);
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io::pbm::save
(output,
"breadth_first_thinning-small.pbm"
);
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}
tests
topo
skeleton
breadth_first_thinning.cc
Copyright (C) 2012 EPITA Research and Development Laboratory (LRDE)