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thin_fit.hh
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26 
27 #ifndef MLN_MORPHO_THIN_FIT_HH
28 # define MLN_MORPHO_THIN_FIT_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  thin_fit(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  thin_fit_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_fg.is_centered());
76  mln_precondition((win_fg && win_bg).is_empty());
77 
78  // Avoid warnings.
79  (void) input_;
80  (void) win_fg_;
81  (void) win_bg_;
82  }
83 
84  } // end of namespace mln::morpho::internal
85 
86 
87  template <typename I, typename Wfg, typename Wbg>
88  inline
89  mln_concrete(I)
90  thin_fit(const Image<I>& input,
91  const Window<Wfg>& win_fg, const Window<Wbg>& win_bg)
92  {
93  mln_trace("morpho::thin_fit");
94 
95  internal::thin_fit_tests(input, win_fg, win_bg);
96 
97  mln_concrete(I)
98  output = morpho::minus( input,
99  hit_or_miss_opening(input,
100  win_fg, win_bg) );
101 
102  return output;
103  }
104 
105 # endif // ! MLN_INCLUDE_ONLY
106 
107  } // end of namespace mln::morpho
108 
109 } // end of namespace mln
110 
111 
112 #endif // ! MLN_MORPHO_THIN_FIT_HH