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rotate_90.cc
1 // Copyright (C) 2010, 2013 EPITA Research and Development Laboratory
2 // (LRDE)
3 //
4 // This file is part of Olena.
5 //
6 // Olena is free software: you can redistribute it and/or modify it under
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8 // Software Foundation, version 2 of the License.
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16 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
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20 // instantiate templates or use macros or inline functions from this
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25 // executable file might be covered by the GNU General Public License.
26 
27 #include <mln/core/image/image2d.hh>
28 #include <mln/value/rgb8.hh>
29 #include <mln/io/magick/load.hh>
30 #include <mln/io/ppm/save.hh>
31 
32 #include <mln/util/timer.hh>
33 
34 #include <scribo/debug/usage.hh>
35 #include <scribo/preprocessing/rotate_90.hh>
36 
37 
38 const char *args_desc[][2] =
39 {
40  { "input.*", "An image." },
41  { "output.ppm", "A rotated image." },
42  { "positive", "if set to 1, performs a +90 rotation; -90 otherwise. "
43  "(default: 0)" },
44  {0, 0}
45 };
46 
47 
48 
49 int main(int argc, char *argv[])
50 {
51  using namespace mln;
52 
53  if (argc != 3 && argc != 4)
54  return scribo::debug::usage(argv,
55  "Fast +90/-90 rotation",
56  "input.* output.ppm <positive>",
57  args_desc);
58 
59  typedef image2d<value::rgb8> I;
60  I ima;
61  io::magick::load(ima, argv[1]);
62 
63  bool positive = false;
64 
65  if (argc >= 4)
66  positive = (atoi(argv[3]) != 0);
67 
68 
70  t.start();
72  t.stop();
73 
74  std::cout << t << std::endl;
75 
76  io::ppm::save(out, argv[2]);
77 }