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meyer_wst_long.cc
1 // Copyright (C) 2008, 2009, 2010 EPITA Research and Development
2 // Laboratory (LRDE)
3 //
4 // This file is part of Olena.
5 //
6 // Olena is free software: you can redistribute it and/or modify it under
7 // the terms of the GNU General Public License as published by the Free
8 // Software Foundation, version 2 of the License.
9 //
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12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 // General Public License for more details.
14 //
15 // You should have received a copy of the GNU General Public License
16 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
17 //
18 // As a special exception, you may use this file as part of a free
19 // software project without restriction. Specifically, if other files
20 // instantiate templates or use macros or inline functions from this
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24 // exception does not however invalidate any other reasons why the
25 // executable file might be covered by the GNU General Public License.
26 
27 #include <iostream>
28 
29 #include <mln/core/image/dmorph/image_if.hh>
30 #include <mln/core/image/image2d.hh>
31 #include <mln/core/alias/window2d.hh>
32 #include <mln/core/alias/neighb2d.hh>
33 
34 #include <mln/value/int_u8.hh>
35 #include <mln/value/label_16.hh>
36 
37 #include <mln/morpho/gradient.hh>
38 #include <mln/morpho/closing/area.hh>
39 #include <mln/morpho/meyer_wst.hh>
40 
41 #include <mln/convert/to_window.hh>
42 
43 #include <mln/pw/cst.hh>
44 #include <mln/pw/value.hh>
45 
46 #include <mln/io/pgm/load.hh>
47 #include <mln/io/ppm/save.hh>
48 #include <mln/labeling/colorize.hh>
49 
50 #include "tests/data.hh"
51 
52 
53 int main()
54 {
55  using namespace mln;
56  using value::int_u8;
57 
58  image2d<int_u8> input;
59  io::pgm::load(input, MLN_IMG_DIR "/lena.pgm");
60 
62  grad = morpho::gradient(input, c4().win()),
63  clo = morpho::closing::area(grad, c4(), 200);
64 
65  // Perform a Watershed Transform.
66  typedef value::label_16 L;
67  L nbasins;
68  image2d<L> ws = morpho::meyer_wst(clo, c4(), nbasins);
69 
70  // Save the image in color.
72  "meyer_wst_long-out.ppm");
73 }