Milena (Olena)
User documentation 2.0a Id
|
00001 // Copyright (C) 2007, 2008, 2009, 2010 EPITA Research and Development 00002 // Laboratory (LRDE) 00003 // 00004 // This file is part of Olena. 00005 // 00006 // Olena is free software: you can redistribute it and/or modify it under 00007 // the terms of the GNU General Public License as published by the Free 00008 // Software Foundation, version 2 of the License. 00009 // 00010 // Olena is distributed in the hope that it will be useful, 00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 // General Public License for more details. 00014 // 00015 // You should have received a copy of the GNU General Public License 00016 // along with Olena. If not, see <http://www.gnu.org/licenses/>. 00017 // 00018 // As a special exception, you may use this file as part of a free 00019 // software project without restriction. Specifically, if other files 00020 // instantiate templates or use macros or inline functions from this 00021 // file, or you compile this file and link it with other files to produce 00022 // an executable, this file does not by itself cause the resulting 00023 // executable to be covered by the GNU General Public License. This 00024 // exception does not however invalidate any other reasons why the 00025 // executable file might be covered by the GNU General Public License. 00026 00027 #include <mln/core/image/image2d.hh> 00028 #include <mln/win/rectangle2d.hh> 00029 00030 #include <mln/value/rgb8.hh> 00031 #include <mln/value/rgb16.hh> 00032 00033 #include <mln/io/ppm/load.hh> 00034 #include <mln/io/ppm/save.hh> 00035 00036 #include <mln/data/compare.hh> 00037 00038 #include "tests/data.hh" 00039 00040 00041 using namespace mln; 00042 00043 struct to16bits : mln::Function_v2v<to16bits> 00044 { 00045 00046 typedef value::rgb16 result; 00047 result operator()(value::rgb8 v) const 00048 { 00049 result ret(v.red().to_enc() * 256, 00050 v.green().to_enc() * 256, 00051 v.blue().to_enc() * 256); 00052 return ret; 00053 } 00054 }; 00055 00056 struct to8bits : mln::Function_v2v<to8bits> 00057 { 00058 00059 typedef value::rgb8 result; 00060 result operator()(value::rgb16 v) const 00061 { 00062 result ret(v.red().to_enc() / 256, 00063 v.green().to_enc() / 256, 00064 v.blue().to_enc() / 256); 00065 return ret; 00066 } 00067 }; 00068 00069 int main() 00070 { 00071 using namespace mln; 00072 using value::rgb8; 00073 using value::rgb16; 00074 00075 typedef image2d<rgb8> I; 00076 00077 { 00078 // load a 8-bit image A 00079 image2d<rgb8> a = io::ppm::load<rgb8>(MLN_IMG_DIR "/lena.ppm"); 00080 image2d<rgb16> b(a.domain()); 00081 00082 image2d<rgb8>::fwd_piter p(b.domain()); 00083 00084 // save it as a 16-bit ppm image B 00085 to16bits f; 00086 for_all(p) 00087 b(p) = f(a(p)); 00088 io::ppm::save(b, "ppm16-out16.ppm"); 00089 00090 // reload B into C 00091 image2d<rgb16> c = io::ppm::load<rgb16>("ppm16-out16.ppm"); 00092 image2d<rgb8> d(a.domain()); 00093 00094 00095 // save C as a 8-bit ppm image D 00096 to8bits g; 00097 for_all(p) 00098 d(p) = g(c(p)); 00099 io::ppm::save(d, "ppm16-out8.ppm"); 00100 00101 // D shall equal A 00102 mln_assertion(d == a); 00103 } 00104 00105 { 00106 // Abort 00107 // image2d<rgb8> a; 00108 // io::ppm::load(a, MLN_IMG_DIR "/lena_16.ppm"); 00109 00110 image2d< value::rgb<16> > b; 00111 io::ppm::load(b, MLN_IMG_DIR "/lena_16.ppm"); 00112 00113 } 00114 00115 { 00116 // Abort 00117 // image2d< value::rgb<8> > a = 00118 // io::ppm::load(MLN_IMG_DIR "/lena_16.ppm"); 00119 00120 // Abort 00121 // image2d< value::rgb<16> > a = 00122 // io::ppm::load< value::rgb<16> >(MLN_IMG_DIR "/lena.ppm"); 00123 00124 image2d< value::rgb<16> > a = 00125 io::ppm::load< value::rgb<16> >(MLN_IMG_DIR "/lena_16.ppm"); 00126 00127 image2d< value::rgb<8> > b = 00128 io::ppm::load< value::rgb<8> >(MLN_IMG_DIR "/lena.ppm"); 00129 } 00130 }