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thickening.hh
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25 
26 #ifndef MLN_MORPHO_THICKENING_HH
27 # define MLN_MORPHO_THICKENING_HH
28 
34 # include <mln/morpho/hit_or_miss.hh>
35 
36 
37 namespace mln
38 {
39 
40  namespace morpho
41  {
42 
43 
48  template <typename I, typename Wfg, typename Wbg>
49  mln_concrete(I)
50  thickening(const Image<I>& input,
51  const Window<Wfg>& win_fg, const Window<Wbg>& win_bg);
52 
53 
54 # ifndef MLN_INCLUDE_ONLY
55 
56  namespace internal
57  {
58 
59  template <typename I, typename Wfg, typename Wbg>
60  inline
61  void
62  thickening_tests(const Image<I>& input_,
63  const Window<Wfg>& win_fg_,
64  const Window<Wbg>& win_bg_)
65  {
66  const I& input = exact(input_);
67  const Wfg& win_fg = exact(win_fg_);
68  const Wbg& win_bg = exact(win_bg_);
69 
70  // Tests.
71  mln_precondition(input.is_valid());
72  mln_precondition(win_bg.is_centered());
73  mln_precondition(! win_fg.is_empty());
74  mln_precondition((win_fg && win_bg).is_empty());
75 
76  // Avoid warnings.
77  (void) input_;
78  (void) win_fg_;
79  (void) win_bg_;
80  }
81 
82  } // end of namespace mln::morpho::internal
83 
84 
85  template <typename I, typename Wfg, typename Wbg>
86  inline
87  mln_concrete(I)
88  thickening(const Image<I>& input,
89  const Window<Wfg>& win_fg, const Window<Wbg>& win_bg)
90  {
91  trace::entering("morpho::thickening");
92 
93  internal::thickening_tests(input, win_fg, win_bg);
94 
95  mln_concrete(I) output = morpho::plus( input,
96  hit_or_miss(input, win_fg, win_bg) );
97 
98  trace::exiting("morpho::thickening");
99  return output;
100  }
101 
102 # endif // ! MLN_INCLUDE_ONLY
103 
104  } // end of namespace mln::morpho
105 
106 } // end of namespace mln
107 
108 
109 #endif // ! MLN_MORPHO_THICKENING_HH