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Olena  User documentation 2.1
An Image Processing Platform
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1 // Copyright (C) 2007, 2008, 2009, 2010, 2011 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,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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/value/int_u8.hh>
29 
30 #include <mln/io/pgm/load.hh>
31 #include <mln/io/pgm/save.hh>
32 
33 #include <mln/border/thickness.hh>
34 #include <mln/linear/log.hh>
35 
36 #include <mln/estim/min_max.hh>
37 #include <mln/data/stretch.hh>
38 
39 #include "tests/data.hh"
40 
41 
42 int main()
43 {
44  using namespace mln;
45  using value::int_u8;
46 
48 
49  image2d<int_u8> lena, out;
50  io::pgm::load(lena, MLN_IMG_DIR "/lena.pgm");
51 
52  image2d<float> tmp = linear::LoG_5x5(lena);
53  {
54  float min, max;
55  estim::min_max(tmp, min, max);
56  mln_assertion(min == -925 && max == 1247);
57  }
58 
59  out = data::stretch(int_u8(), tmp);
60  io::pgm::save(out, "log-out.pgm");
61  {
62  int_u8 min, max;
63  estim::min_max(out, min, max);
64  mln_assertion(min == 0u && max == 255u);
65  }
66 }