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thin_fit.hh
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25 
26 #ifndef MLN_MORPHO_THIN_FIT_HH
27 # define MLN_MORPHO_THIN_FIT_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  thin_fit(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  thin_fit_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_fg.is_centered());
73  mln_precondition((win_fg && win_bg).is_empty());
74 
75  // Avoid warnings.
76  (void) input_;
77  (void) win_fg_;
78  (void) win_bg_;
79  }
80 
81  } // end of namespace mln::morpho::internal
82 
83 
84  template <typename I, typename Wfg, typename Wbg>
85  inline
86  mln_concrete(I)
87  thin_fit(const Image<I>& input,
88  const Window<Wfg>& win_fg, const Window<Wbg>& win_bg)
89  {
90  trace::entering("morpho::thin_fit");
91 
92  internal::thin_fit_tests(input, win_fg, win_bg);
93 
94  mln_concrete(I)
95  output = morpho::minus( input,
96  hit_or_miss_opening(input,
97  win_fg, win_bg) );
98 
99  trace::exiting("morpho::thin_fit");
100  return output;
101  }
102 
103 # endif // ! MLN_INCLUDE_ONLY
104 
105  } // end of namespace mln::morpho
106 
107 } // end of namespace mln
108 
109 
110 #endif // ! MLN_MORPHO_THIN_FIT_HH