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An Image Processing Platform
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component_precise_outline.cc
1 // Copyright (C) 2011 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/io/pbm/load.hh>
28 #include <mln/io/ppm/save.hh>
29 #include <mln/data/convert.hh>
30 #include <mln/value/rgb8.hh>
31 #include <mln/literal/colors.hh>
32 #include <mln/draw/line.hh>
33 #include <mln/util/timer.hh>
34 
35 #include <scribo/util/component_precise_outline.hh>
36 #include <scribo/debug/usage.hh>
37 
38 #include <mln/pw/all.hh>
39 #include <mln/core/image/dmorph/image_if.hh>
40 
41 
42 const char *args_desc[][2] =
43 {
44  { "input.pbm", "A binary image" },
45  { "output.ppm", "Output image." },
46  {0, 0}
47 };
48 
49 
50 int main(int argc, char *argv[])
51 {
52  using namespace mln;
53  using namespace scribo;
54 
55  if (argc != 3)
56  return scribo::debug::usage(argv,
57  "Extract component precise outlines",
58  "input.pbm output.pbm",
59  args_desc);
60 
61  mln_trace("main");
62 
63  image2d<bool> input;
64  io::pbm::load(input, argv[1]);
65 
67  t.start();
68 
69  typedef mln::p_array<mln::point2d> par_t;
70  par_t par = scribo::util::component_precise_outline(input);
71 
72  t.stop();
73  /* FIXME: Help the compiler to ``unproxy' the float stored in the
74  timer. There is a problem with an overload resolution of
75  `mln::unproxy_rec' here. */
76  std::cout << t.read() << std::endl;
77 
78  image2d<value::rgb8> input_rgb = data::convert(value::rgb8(), input);
79 
80  point2d last_point = par[0];
81  mln_piter_(par_t) p(par);
82  for_all(p)
83  {
84  mln::draw::line(input_rgb, last_point, p, literal::red);
85  last_point = p;
86  }
87 
88  io::ppm::save(input_rgb, argv[2]);
89 
90 }