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compute.hh
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26 
27 #ifndef SCRIBO_FILTER_INTERNAL_COMPUTE_HH
28 # define SCRIBO_FILTER_INTERNAL_COMPUTE_HH
29 
33 
34 # include <mln/core/concept/image.hh>
35 # include <mln/core/concept/neighborhood.hh>
36 
37 # include <mln/util/array.hh>
38 
39 # include <scribo/core/component_set.hh>
40 # include <scribo/primitive/extract/components.hh>
41 
42 
43 
44 namespace scribo
45 {
46 
47  namespace filter
48  {
49 
50  namespace internal
51  {
52 
53 
54  using namespace mln;
55 
64  //
65  template <typename I, typename N, typename V, typename F>
66  mln_concrete(I)
67  compute(const Image<I>& input_,
68  const Neighborhood<N>& nbh_,
69  const V& label_type,
70  const Function_v2b<F>& filter);
71 
72 
79  //
80  template <typename L, typename F>
81  component_set<L>
82  compute(const component_set<L>& components,
83  const Function_v2b<F>& filter);
84 
85 
86 # ifndef MLN_INCLUDE_ONLY
87 
88 
89  template <typename I, typename N, typename V, typename F>
90  inline
91  mln_concrete(I)
92  compute(const Image<I>& input_,
93  const Neighborhood<N>& nbh_,
94  const V& /* label_type */,
95  const Function_v2b<F>& filter)
96  {
97  mln_trace("scribo::filter::internal::compute");
98 
99  const I& input = exact(input_);
100  const N& nbh = exact(nbh_);
101 
102  mln_precondition(input.is_valid());
103  mln_precondition(nbh.is_valid());
104 
105  V nlabels;
106  typedef mln_ch_value(I,V) lbl_t;
107  component_set<lbl_t> components
108  = primitive::extract::components(input, nbh, nlabels);
109 
110  filter.update_objects(components);
111  components.relabel(filter);
112 
113  mln_concrete(I) output = duplicate(input);
114  data::fill((output | pw::value(components) == literal::zero).rw(), false);
115 
116  return output;
117  }
118 
119 
120  template <typename L, typename F>
121  inline
122  component_set<L>
123  compute(const component_set<L>& components,
124  const Function_v2b<F>& filter)
125  {
126  mln_trace("scribo::filter::internal::compute");
127 
128  mln_precondition(components.is_valid());
129 
130  component_set<L> output = components.duplicate();
131  output.update_tags(filter, component::Ignored);
132 
133  return output;
134  }
135 
136 # endif // ! MLN_INCLUDE_ONLY
137 
138  } // end of namespace scribo::filter::internal
139 
140  } // end of namespace scribo::filter
141 
142 } // end of namespace scribo
143 
144 
145 #endif // ! SCRIBO_FILTER_INTERNAL_COMPUTE_HH