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thickening.hh
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26 
27 #ifndef MLN_MORPHO_THICKENING_HH
28 # define MLN_MORPHO_THICKENING_HH
29 
35 # include <mln/morpho/hit_or_miss.hh>
36 
37 
38 namespace mln
39 {
40 
41  namespace morpho
42  {
43 
44 
51  template <typename I, typename Wfg, typename Wbg>
52  mln_concrete(I)
53  thickening(const Image<I>& input,
54  const Window<Wfg>& win_fg, const Window<Wbg>& win_bg);
55 
56 
57 # ifndef MLN_INCLUDE_ONLY
58 
59  namespace internal
60  {
61 
62  template <typename I, typename Wfg, typename Wbg>
63  inline
64  void
65  thickening_tests(const Image<I>& input_,
66  const Window<Wfg>& win_fg_,
67  const Window<Wbg>& win_bg_)
68  {
69  const I& input = exact(input_);
70  const Wfg& win_fg = exact(win_fg_);
71  const Wbg& win_bg = exact(win_bg_);
72 
73  // Tests.
74  mln_precondition(input.is_valid());
75  mln_precondition(win_bg.is_centered());
76  mln_precondition(! win_fg.is_empty());
77  mln_precondition((win_fg && win_bg).is_empty());
78 
79  // Avoid warnings.
80  (void) input_;
81  (void) win_fg_;
82  (void) win_bg_;
83  }
84 
85  } // end of namespace mln::morpho::internal
86 
87 
88  template <typename I, typename Wfg, typename Wbg>
89  inline
90  mln_concrete(I)
91  thickening(const Image<I>& input,
92  const Window<Wfg>& win_fg, const Window<Wbg>& win_bg)
93  {
94  mln_trace("morpho::thickening");
95 
96  internal::thickening_tests(input, win_fg, win_bg);
97 
98  mln_concrete(I) output = morpho::plus( input,
99  hit_or_miss(input, win_fg, win_bg) );
100 
101  return output;
102  }
103 
104 # endif // ! MLN_INCLUDE_ONLY
105 
106  } // end of namespace mln::morpho
107 
108 } // end of namespace mln
109 
110 
111 #endif // ! MLN_MORPHO_THICKENING_HH