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objects_on_border_filter.hh
1 // Copyright (C) 2011 EPITA Research and Development Laboratory (LRDE)
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25 
26 #ifndef SCRIBO_FUN_V2B_COMPONENTS_ON_BORDER_FILTER_HH
27 # define SCRIBO_FUN_V2B_COMPONENTS_ON_BORDER_FILTER_HH
28 
32 
33 
34 
35 # include <mln/core/concept/function.hh>
36 
37 # include <mln/util/array.hh>
38 
39 # include <mln/accu/math/count.hh>
40 
41 # include <mln/labeling/compute.hh>
42 
43 # include <scribo/core/component_set.hh>
44 
45 
46 namespace scribo
47 {
48 
49  namespace fun
50  {
51 
52  namespace v2b
53  {
54 
55  using namespace mln;
56 
57 
60  template <typename L>
62  : Function_v2b< components_on_border_filter<L> >
63  {
65 
69  //
71 
72 
79  //
80  bool operator()(const mln_value(L)& l) const;
81 
84 
86  const box2d& b_;
87  };
88 
89 
90 
91 
92 # ifndef MLN_INCLUDE_ONLY
93 
94 
95  template <typename L>
96  inline
99  : components_(components), b_(components_.labeled_image().domain())
100  {
101  }
102 
103 
104 
105  template <typename L>
106  inline
107  bool
108  components_on_border_filter<L>::operator()(const mln_value(L)& l) const
109  {
110  if (l == literal::zero)
111  return false;
112 
113  if (components_(l).bbox().pmin().row() == b_.pmin().row()
114  || components_(l).bbox().pmax().row() == b_.pmax().row()
115  || components_(l).bbox().pmin().col() == b_.pmin().col()
116  || components_(l).bbox().pmax().col() == b_.pmax().col())
117  return false;
118 
119  return true;
120  }
121 
122 
123 # endif // ! MLN_INCLUDE_ONLY
124 
125 
126  } // end of namespace scribo::fun::v2b
127 
128  } // end of namespace scribo::fun
129 
130 } // end of namespace scribo
131 
132 #endif // ! SCRIBO_FUN_V2B_COMPONENTS_ON_BORDER_FILTER_HH