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extract.hh
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26 
27 #ifndef SCRIBO_TABLE_EXTRACT_HH
28 # define SCRIBO_TABLE_EXTRACT_HH
29 
34 
35 # include <mln/core/concept/image.hh>
36 # include <mln/util/couple.hh>
37 # include <mln/util/array.hh>
38 
39 # include <mln/io/ppm/all.hh>
40 # include <mln/labeling/colorize.hh>
41 
42 # include <scribo/table/rebuild.hh>
43 # include <scribo/table/erase.hh>
44 # include <scribo/primitive/extract/lines_h_pattern.hh>
45 # include <scribo/primitive/extract/lines_v_pattern.hh>
46 # include <scribo/primitive/extract/components.hh>
47 
48 namespace scribo
49 {
50 
51  namespace table
52  {
53  using namespace mln;
54 
57  /*
58  ** \param[in] input_ A binary image.
59  ** \param[in,out] ncells The number of cells.
60  **
61  ** \return a couple. The first element is an image containing the
62  ** cells components. The second element is a couple of vertical and
63  ** horizontal table lines.
64  */
65  template <typename I, typename V>
69  extract(const Image<I>& input_, V& ncells);
70 
71 
72 # ifndef MLN_INCLUDE_ONLY
73 
74  template <typename I, typename V>
75  inline
79  extract(const Image<I>& input_, V& ncells)
80  {
81  mln_trace("scribo::table::extract");
82 
83  const I& input = exact(input_);
84  mln_precondition(input.is_valid());
85  mlc_equal(mln_value(I), bool)::check();
86 
88  bhlines = scribo::primitive::extract::lines_h_pattern(input, 51, 3),
89  bvlines = scribo::primitive::extract::lines_v_pattern(input, 51, 3);
90 
91  V nhlines, nvlines;
92  component_set<mln_ch_value(I,V)>
93  hlines = scribo::primitive::extract::components(bhlines, c8(),
94  nhlines),
95  vlines = scribo::primitive::extract::components(bvlines, c8(),
96  nvlines);
97 
98  typedef mln::util::couple<mln_ch_value(I,V),
101  tables_t;
102  tables_t tables
103  = scribo::table::rebuild(input,
104  vlines, hlines, 30, ncells);
105 
106  return tables;
107  }
108 
109 # endif // ! MLN_INCLUDE_ONLY
110 
111  } // end of namespace scribo::table
112 
113 } // end of namespace scribo
114 
115 #endif // ! SCRIBO_TABLE_EXTRACT_HH