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show_links_single_right.cc
1 // Copyright (C) 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
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8 // Software Foundation, version 2 of the License.
9 //
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13 // General Public License for more details.
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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 <iostream>
28 
29 #include <mln/core/image/image2d.hh>
30 #include <mln/core/alias/neighb2d.hh>
31 
32 #include <mln/data/convert.hh>
33 
34 #include <mln/value/rgb8.hh>
35 #include <mln/value/label_16.hh>
36 #include <mln/literal/colors.hh>
37 
38 #include <mln/io/pbm/load.hh>
39 #include <mln/io/ppm/save.hh>
40 
41 #include <mln/draw/line.hh>
42 
43 #include <scribo/primitive/extract/components.hh>
44 #include <scribo/primitive/link/with_single_right_link.hh>
45 #include <scribo/primitive/link/internal/link_single_dmax_base.hh>
46 #include <scribo/primitive/link/compute.hh>
47 
48 #include <scribo/draw/bounding_boxes.hh>
49 
50 #include <scribo/debug/usage.hh>
51 
52 
53 namespace scribo
54 {
55 
56  template <typename I, typename L>
57  struct single_right_link_debug_functor
58  : primitive::link::internal::link_single_dmax_base<L,
59  single_right_link_debug_functor<I, L> >
60  {
61  typedef single_right_link_debug_functor<I, L> self_t;
62  typedef
63  primitive::link::internal::link_single_dmax_base<L, self_t> super_;
64 
65  public:
66  typedef mln_site(L) P;
67 
68  single_right_link_debug_functor(const I& input,
69  const component_set<L>& components,
70  unsigned dmax)
71  : super_(components, dmax, anchor::Horizontal)
72  {
73  output_ = data::convert(value::rgb8(), input);
74  scribo::draw::bounding_boxes(output_, components, literal::blue);
75  mln_postcondition(output_.is_valid());
76  }
77 
78  void validate_link_(unsigned current_object,
79  const P& start_point,
80  const P& p,
81  anchor::Type anchor)
82  {
83  mln::draw::line(output_, start_point, p, literal::green);
84 
85  super_::validate_link_(current_object, start_point, p, anchor);
86  }
87 
88 
89 
90  void invalidate_link_(unsigned current_object,
91  const P& start_point,
92  const P& p,
93  anchor::Type anchor)
94  {
95  if (output_.domain().has(p))
96  mln::draw::line(output_, start_point, p, literal::red);
97  else
98  {
99  P tmp = p;
100  --tmp.col();
101  mln::draw::line(output_, start_point, tmp, literal::red);
102  }
103 
104  super_::invalidate_link_(current_object, start_point, p, anchor);
105  }
106 
107 
108 
109  void compute_next_site_(P& p)
110  {
111  ++p.col();
112  }
113 
114 
115  image2d<value::rgb8> output_;
116  };
117 
118 
119 }
120 
121 
122 const char *args_desc[][2] =
123 {
124  { "input.pbm", "A binary image. True for objects and False for the "
125  "background." },
126  { "max_nbh_dist", "The maximum lookup distance. (common value : 30)" },
127  {0, 0}
128 };
129 
130 
131 int main(int argc, char* argv[])
132 {
133  using namespace scribo;
134  using namespace scribo::primitive::internal;
135  using namespace mln;
136 
137  if (argc != 4)
138  return scribo::debug::usage(argv,
139  "Show sucessful/unsuccessful right links "
140  "between components.",
141  "input.pbm max_nbh_dist output.ppm",
142  args_desc);
143 
144  typedef image2d<bool> I;
145  I input;
146  io::pbm::load(input, argv[1]);
147 
148  // Finding objects.
149  value::label_16 nbboxes;
150  typedef image2d<value::label_16> L;
151  component_set<L> components
152  = scribo::primitive::extract::components(input, c8(), nbboxes);
153 
154  // Write debug image.
155  single_right_link_debug_functor<I, L>
156  functor(input, components, atoi(argv[2]));
157  primitive::link::compute(functor, anchor::MassCenter);
158 
159  io::ppm::save(functor.output_, argv[3]);
160 }