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fld2d.cc
1 // Copyright (C) 2008, 2009 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.
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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
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24 // executable file might be covered by the GNU General Public License.
25 
29 
30 #include <mln/core/image/image2d.hh>
31 
32 #include <mln/io/pgm/load.hh>
33 #include <mln/io/ppm/load.hh>
34 #include <mln/io/fld/load.hh>
35 #include <mln/io/fld/save.hh>
36 #include <mln/value/int_u8.hh>
37 #include <mln/value/int_u16.hh>
38 #include <mln/data/compare.hh>
39 #include "tests/data.hh"
40 
41 #include <stdio.h>
42 #include <float.h>
43 #include <time.h>
44 
45 int main()
46 {
47  using namespace mln;
48  using value::int_u8;
49  using value::int_u16;
50 
51  // Test on int_u8.
52  // Veclen = 1, data = byte
53  {
54  image2d<int_u8> ori, test;
55  io::pgm::load(ori, MLN_IMG_DIR "/lena.pgm");
56 
57  io::fld::save(ori, "out.fld");
58  io::fld::load(test, "out.fld");
59 
60  // Clean output.
61  std::remove("out.fld");
62 
63  mln_assertion(ori == test);
64  }
65 
66  // Test on RGB 16
67  // Veclen = 3, data = short
68  {
69  image2d<int_u16> ori, test;
70  io::ppm::load(ori, MLN_IMG_DIR "/lena_16.ppm");
71 
72  io::fld::save(ori, "out.fld");
73  io::fld::load(test, "out.fld");
74 
75  // Clean output.
76  std::remove("out.fld");
77 
78  mln_assertion(ori == test);
79  }
80 
81  // Test on 32-bits data type
82  // Veclen = 1, data = float
83  {
84  image2d<float> ori, test;
85  box<point2d> domain(8, 9);
86 
87  srand(time(NULL));
88  ori.init_(domain);
89  {
90  mln_piter_(image2d<float>) p(domain);
91  for_all(p)
92  ori(p) = random() / RAND_MAX;
93  }
94 
95  io::fld::save(ori, "out.fld");
96  io::fld::load(test, "out.fld");
97 
98  // Clean output.
99  std::remove("out.fld");
100 
101  {
102  mln_piter_(image2d<float>) p(domain);
103  for_all(p)
104  mln_assertion(fabs(ori(p) - test(p)) < FLT_EPSILON);
105  }
106  }
107 
108 }