00001 // Copyright (C) 2009, 2010 EPITA Research and Development Laboratory 00002 // (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 00028 #ifndef MLN_FUN_V2V_RGB_TO_INT_U_HH 00029 # define MLN_FUN_V2V_RGB_TO_INT_U_HH 00030 00031 # include <mln/core/concept/function.hh> 00032 # include <mln/value/int_u8.hh> 00033 # include <mln/value/rgb8.hh> 00034 00035 namespace mln 00036 { 00037 00038 namespace fun 00039 { 00040 00041 namespace v2v 00042 { 00043 00044 template <unsigned n> 00045 struct rgb_to_int_u : Function_v2v< rgb_to_int_u<n> > 00046 { 00047 typedef value::int_u<n> result; 00048 00049 result operator()(const value::rgb<n>& c) const; 00050 }; 00051 00052 # ifndef MLN_INCLUDE_ONLY 00053 00054 template <unsigned n> 00055 typename rgb_to_int_u<n>::result 00056 rgb_to_int_u<n>::operator()(const value::rgb<n>& c) const 00057 { 00058 return (c.red() + c.green() + c.blue()) / 3; 00059 } 00060 00061 # endif // ! MLN_INCLUDE_ONLY 00062 00063 } // end of namespace mln::fun::v2v 00064 00065 } // end of namespace mln::fun 00066 00067 } // end of namespace mln 00068 00069 #endif // ! MLN_FUN_V2V_RGB_TO_INT_U_HH
1.7.1