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An Image Processing Platform
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crop.hh
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26 
30 
31 #ifndef MLN_GEOM_CROP_HH
32 # define MLN_GEOM_CROP_HH
33 
34 # include <mln/core/concept/image.hh>
35 # include <mln/core/concept/box.hh>
36 # include <mln/data/paste.hh>
37 
38 namespace mln
39 {
40 
41  namespace geom
42  {
43 
48  template <typename I, typename B>
49  mln_concrete(I) crop(const Image<I>& input, const Box<B>& b);
50 
51 
52 # ifndef MLN_INCLUDE_ONLY
53 
54  template <typename I, typename B>
55  mln_concrete(I) crop(const Image<I>& input_, const Box<B>& b_)
56  {
57  mln_trace("mln::geom::crop");
58 
59  const I& input = exact(input_);
60  const B& b = exact(b_);
61  mln_precondition(input.is_valid());
62  mln_precondition(b.is_valid());
63  mln_precondition(b <= input.domain());
64 
65  mln_concrete(I) output(b);
66  data::paste(input | b, output);
67 
68  return output;
69  }
70 
71 # endif // ! MLN_INCLUDE_ONLY
72 
73  } // end of namespace mln::geom
74 
75 } // end of namespace mln
76 
77 #endif // ! MLN_GEOM_CROP_HH