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Olena  User documentation 2.1
An Image Processing Platform
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to_qimage.cc
1 // Copyright (C) 2010 EPITA Research and Development Laboratory (LRDE)
2 //
3 // This file is part of Olena.
4 //
5 // Olena is free software: you can redistribute it and/or modify it under
6 // the terms of the GNU General Public License as published by the Free
7 // Software Foundation, version 2 of the License.
8 //
9 // Olena is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // General Public License for more details.
13 //
14 // You should have received a copy of the GNU General Public License
15 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
16 //
17 // As a special exception, you may use this file as part of a free
18 // software project without restriction. Specifically, if other files
19 // instantiate templates or use macros or inline functions from this
20 // file, or you compile this file and link it with other files to produce
21 // an executable, this file does not by itself cause the resulting
22 // executable to be covered by the GNU General Public License. This
23 // exception does not however invalidate any other reasons why the
24 // executable file might be covered by the GNU General Public License.
25 
29 
30 #include <QtGui/QtGui>
31 #include <QColor>
32 
33 #include "tests/data.hh"
34 
35 #include <mln/core/image/image2d.hh>
36 #include <mln/value/rgb8.hh>
37 #include <mln/value/int_u8.hh>
38 #include <mln/io/ppm/load.hh>
39 #include <mln/io/pgm/load.hh>
40 #include <mln/data/convert.hh>
41 
42 #include <mln/convert/to_qimage.hh>
43 
44 
45 int main()
46 {
47  using namespace mln;
48 
49  {
51  io::pgm::load(input, MLN_IMG_DIR "/picasso.pgm");
52  QImage test = convert::to_qimage(input);
53  QImage refpix(MLN_IMG_DIR "/picasso.pgm");
54 
55  // Do NOT use operator== since it compares the raw buffer and
56  // padding data is not initialized by Qt...
57  for (int row = 0; row < test.height(); ++row)
58  for (int col = 0; col < test.width(); ++col)
59  mln_assertion(refpix.pixel(col, row) == test.pixel(col, row));
60  }
61 
62  {
64  io::ppm::load(input, MLN_IMG_DIR "/picasso.ppm");
65  QImage test = convert::to_qimage(input);
66  QImage refpix(MLN_IMG_DIR "/picasso.ppm");
67 
68  test = test.convertToFormat(refpix.format());
69 
70  // Do NOT use operator== since it compares the raw buffer and
71  // padding data is not initialized by Qt...
72  for (int row = 0; row < test.height(); ++row)
73  for (int col = 0; col < test.width(); ++col)
74  mln_assertion(refpix.pixel(col, row) == test.pixel(col, row));
75  }
76 }