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lines_v_pattern.hh
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26 
27 #ifndef SCRIBO_PRIMITIVE_EXTRACT_LINES_V_PATTERN_HH
28 # define SCRIBO_PRIMITIVE_EXTRACT_LINES_V_PATTERN_HH
29 
33 
34 # include <cmath>
35 
36 # include <mln/core/concept/image.hh>
37 # include <mln/core/alias/window2d.hh>
38 # include <mln/win/rectangle2d.hh>
39 # include <mln/morpho/dilation.hh>
40 
41 # include <mln/arith/times.hh>
42 
43 # include <scribo/primitive/extract/lines_pattern.hh>
44 
45 # include <scribo/primitive/internal/rd.hh>
46 
47 namespace scribo
48 {
49 
50  namespace primitive
51  {
52 
53  namespace extract
54  {
55 
56  using namespace mln;
57 
58 
70  template <typename I>
71  mln_concrete(I)
72  lines_v_pattern(const Image<I>& input, unsigned length, unsigned delta);
73 
74 
75 # ifndef MLN_INCLUDE_ONLY
76 
77 
78  template <typename I>
79  mln_concrete(I)
80  lines_v_pattern(const Image<I>& input, unsigned length, unsigned delta)
81  {
82  mln_trace("scribo::primitive::extract::lines_v_pattern");
83 
84  mln_precondition(length % 2 == 1);
85 
86  window2d win;
87  mln_deduce(I, site, dpsite)
88  dp1(0, -delta - 1),
89  dp2(0, delta + 1);
90  win.insert(dp1);
91  win.insert(dp2);
92 
93  mln_concrete(I) output = lines_pattern(input, length, 0, win);
94 
95  unsigned vl = length;
96  if (! (vl % 2))
97  ++vl;
98  win::rectangle2d w(vl, delta);
99 
100  mln_concrete(I)
101  output_dil = morpho::dilation(output, w);
102 
103  output = scribo::primitive::internal::rd(output, input * output_dil);
104 
105  return output;
106  }
107 
108 
109 # endif // ! MLN_INCLUDE_ONLY
110 
111  } // end of namespace scribo::primitive::extract
112 
113  } // end of namespace scribo::primitive
114 
115 } // end of namespace scribo
116 
117 
118 #endif // ! SCRIBO_PRIMITIVE_EXTRACT_LINES_V_PATTERN_HH
119