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Olena  User documentation 2.1
An Image Processing Platform
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graylevel_f.cc
1 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE)
2 //
3 // This file is part of Olena.
4 //
5 // Olena is free software: you can redistribute it and/or modify it under
6 // the terms of the GNU General Public License as published by the Free
7 // Software Foundation, version 2 of the License.
8 //
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12 // General Public License for more details.
13 //
14 // You should have received a copy of the GNU General Public License
15 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
16 //
17 // As a special exception, you may use this file as part of a free
18 // software project without restriction. Specifically, if other files
19 // instantiate templates or use macros or inline functions from this
20 // file, or you compile this file and link it with other files to produce
21 // an executable, this file does not by itself cause the resulting
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24 // executable file might be covered by the GNU General Public License.
25 
26 #include <mln/value/graylevel.hh>
27 #include <mln/value/glf.hh>
28 #include <mln/literal/all.hh>
29 
30 
31 int main()
32 {
33  using namespace mln;
34  using value::glf;
35 
36  using literal::black;
38  using literal::white;
39 
40 
41  // Literals.
42  {
43  glf a = medium_gray;
44  glf b = medium_gray;
45  // a == 0.5f;
46  mln_assertion(0.5f == a.to_enc());
47  // a == b;
48  mln_assertion(b == a);
49 
50  a *= 2;
51  mln_assertion(a == glf(white));
52  mln_assertion(a.to_enc() == 1.f);
53  }
54 }