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An Image Processing Platform
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make_edge_image.cc
1 // Copyright (C) 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 //
9 // Olena is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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
22 // executable to be covered by the GNU General Public License. This
23 // exception does not however invalidate any other reasons why the
24 // executable file might be covered by the GNU General Public License.
25 
26 #include <mln/core/image/image2d.hh>
27 #include <mln/world/inter_pixel/dim2/make_edge_image.hh>
28 #include <mln/value/int_u8.hh>
29 #include <mln/make/image.hh>
30 #include <mln/math/abs.hh>
31 #include <mln/data/compare.hh>
32 
33 
34 namespace mln
35 {
36 
37  struct myfun : Function_vv2v<myfun>
38  {
39  typedef mln::value::int_u8 result;
40 
41  result operator()(const value::int_u8& v1, const value::int_u8& v2) const
42  {
43  return math::abs(v1-v2);
44  }
45  };
46 
47 }
48 
49 
50 
51 int main()
52 {
53  using namespace mln;
54 
55  value::int_u8 vals[][5] = { { 3, 0, 4, 0, 5 },
56  { 0, 0, 0, 0, 0 },
57  { 1, 0, 3, 0, 6 },
58  { 0, 0, 0, 0, 0 },
59  { 8, 0, 7, 0, 3 } };
60 
61  value::int_u8 refs[][5] = { { 0, 1, 0, 1, 0 },
62  { 2, 0, 1, 0, 1 },
63  { 0, 2, 0, 3, 0 },
64  { 7, 0, 4, 0, 3 },
65  { 0, 1, 0, 4, 0 } };
66 
67  typedef image2d<value::int_u8> ima_t;
68  ima_t ima = make::image(vals);
69  ima_t ref = make::image(refs);
70 
71  ima_t res = world::inter_pixel::dim2::make_edge_image(ima, myfun());
72 
73  mln_assertion(res == ref);
74 }