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An Image Processing Platform
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rank_filter.cc
1 // Copyright (C) 2007, 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 //
10 // Olena is distributed in the hope that it will be useful,
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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
21 // file, or you compile this file and link it with other files to produce
22 // an executable, this file does not by itself cause the resulting
23 // executable to be covered by the GNU General Public License. This
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 <mln/core/image/image2d.hh>
28 #include <mln/win/rectangle2d.hh>
29 #include <mln/core/alias/window2d.hh>
30 
31 #include <mln/io/pgm/load.hh>
32 
33 #include <mln/value/int_u8.hh>
34 #include <mln/data/fill.hh>
35 #include <mln/data/compare.hh>
36 #include <mln/data/median.hh>
37 #include <mln/morpho/rank_filter.hh>
38 #include <mln/morpho/dilation.hh>
39 
40 #include <mln/pw/value.hh>
41 #include <mln/pw/cst.hh>
42 #include <mln/fun/ops.hh>
43 
44 #include "tests/data.hh"
45 
46 
47 int main()
48 {
49  using namespace mln;
50  using value::int_u8;
51 
52  win::rectangle2d rec(21, 21);
53  border::thickness = 66;
54 
55  image2d<int_u8> lena;
56  io::pgm::load(lena, MLN_IMG_DIR "/small.pgm");
57 
58  {
59  image2d<int_u8> out;
60  out = morpho::rank_filter(lena, rec, 0);
61 
62  image2d<int_u8> ref(lena.domain());
63  ref = morpho::erosion(lena, rec);
64 
65  mln_assertion(ref == out);
66  }
67 
68 
69  {
70  image2d<int_u8> out;
71  out = morpho::rank_filter(lena, rec, 21 * 21);
72 
73  image2d<int_u8> ref(lena.domain());
74  ref = morpho::dilation(lena, rec);
75 
76  mln_assertion(ref == out);
77  }
78 
79 }