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 00029 #include <mln/value/int_u8.hh> 00030 00031 #include <mln/io/pgm/load.hh> 00032 #include <mln/io/pgm/save.hh> 00033 00034 #include <mln/data/transform.hh> 00035 #include <mln/data/compare.hh> 00036 00037 #include "tests/data.hh" 00038 00039 00040 using namespace mln; 00041 00042 struct to19bits : mln::Function_v2v<to19bits> 00043 { 00044 00045 typedef value::int_u<19> result; 00046 result operator()(value::int_u8 v) const 00047 { 00048 result ret(v * 524288); 00049 return ret; 00050 } 00051 }; 00052 00053 struct to8bits : mln::Function_v2v<to8bits> 00054 { 00055 00056 typedef value::int_u8 result; 00057 result operator()(value::int_u<19> v) const 00058 { 00059 result ret(v / 524288); 00060 return ret; 00061 } 00062 }; 00063 00064 00065 int main() 00066 { 00067 using namespace mln; 00068 using value::int_u8; 00069 using value::int_u; 00070 typedef value::int_u<19> int_u19; 00071 00072 border::thickness = 52; 00073 00074 image2d<int_u8> lena = io::pgm::load<int_u8>(MLN_IMG_DIR "/lena.pgm"); 00075 image2d<int_u19> out(lena.domain()); 00076 00077 out = data::transform(lena, to19bits()); 00078 io::pgm::save(out, "pgm19-out19.pgm"); 00079 00080 image2d<int_u19> lena2 = io::pgm::load<int_u19>("pgm19-out19.pgm"); 00081 00082 image2d<int_u8> out2(lena.domain()); 00083 out2 = data::transform(lena2, to8bits()); 00084 io::pgm::save(out2, "pgm19-out8.pgm"); 00085 assert(out2 == lena); 00086 }
1.7.1