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An Image Processing Platform
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text_components_image.hh
1 // Copyright (C) 2011, 2013 EPITA Research and Development Laboratory
2 // (LRDE)
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26 
27 #ifndef SCRIBO_MAKE_TEXT_COMPONENTS_IMAGE_HH
28 # define SCRIBO_MAKE_TEXT_COMPONENTS_IMAGE_HH
29 
33 
34 #include <mln/pw/all.hh>
35 #include <mln/core/image/dmorph/image_if.hh>
36 #include <mln/util/array.hh>
37 #include <mln/data/fill.hh>
38 
39 #include <scribo/core/document.hh>
40 #include <scribo/core/line_set.hh>
41 
42 
43 namespace scribo
44 {
45 
46  namespace make
47  {
48  using namespace mln;
49 
50 
52 
55  template <typename L>
56  mln_ch_value(L,bool)
57  text_components_image(const document<L>& doc);
58 
59 
60 # ifndef MLN_INCLUDE_ONLY
61 
62  template <typename L>
63  mln_ch_value(L,bool)
64  text_components_image(const document<L>& doc)
65  {
66  mln_trace("scribo::make::text_components_image");
67 
68  mln_precondition(doc.is_open());
69  mln_precondition(doc.has_text());
70 
71  mln_ch_value(L,bool) output;
72  initialize(output, doc.image());
73  data::fill(output, false);
74 
75  if (doc.has_text())
76  {
77  const scribo::line_set<L>& lines = doc.lines();
78  for_all_lines(l, doc.lines())
79  if (lines(l).is_textline())
80  {
82  comp_ids = lines(l).component_ids();
83  const L& lbl = lines.components().labeled_image();
84  for_all_elements(c, comp_ids)
85  {
86  data::fill(((output | lines.components()(comp_ids(c)).bbox()).rw()
87  | (pw::value(lbl) == comp_ids(c))).rw(),
88  (doc.binary_image() | lines.components()(comp_ids(c)).bbox()));
89  }
90  }
91  }
92 
93  return output;
94  }
95 
96 # endif // ! MLN_INCLUDE_ONLY
97 
98  } // end of namespace scribo::make
99 
100 } // end of namespace scribo
101 
102 
103 
104 #endif // ! SCRIBO_MAKE_TEXT_COMPONENTS_IMAGE_HH