Milena (Olena)
User documentation 2.0a Id
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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/value/int_u8.hh> 00029 #include <mln/io/pgm/load.hh> 00030 #include <mln/core/alias/neighb2d.hh> 00031 #include <mln/labeling/flat_zones.hh> 00032 00033 #include <mln/labeling/blobs.hh> 00034 #include <mln/pw/all.hh> 00035 #include <mln/data/compare.hh> 00036 00037 #include "tests/data.hh" 00038 00039 00040 int main() 00041 { 00042 using namespace mln; 00043 using value::int_u8; 00044 00045 image2d<int_u8> lena = io::pgm::load<int_u8>(MLN_IMG_DIR "/tiny.pgm"); 00046 00047 00048 // Bench code: 00049 00050 // for (unsigned i = 0; i < 10; ++i) 00051 // { 00052 // typedef image2d<int_u8> I; 00053 // labeling::impl::flat_zones_functor<I> f(lena); 00054 // unsigned n; 00055 // canvas::impl::labeling_video_fastest(lena, 00056 // c4(), 00057 // n, 00058 // f); 00059 // } 00060 00061 00062 unsigned n; 00063 image2d<unsigned> labels = labeling::flat_zones(lena, c4(), n); 00064 mln_assertion(n == 247); 00065 00066 { 00067 typedef image2d<int_u8> I; 00068 labeling::impl::flat_zones_functor<I,unsigned> f(lena); 00069 00070 unsigned nlabels_generic, nlabels_fastest; 00071 mln_assertion(canvas::labeling::impl::generic::labeling(lena, 00072 c4(), 00073 nlabels_generic, 00074 lena.domain(), 00075 f) 00076 == 00077 canvas::labeling::impl::video_fastest(lena, 00078 c4(), 00079 nlabels_fastest, 00080 f)); 00081 mln_assertion(nlabels_generic == nlabels_fastest); 00082 } 00083 00084 { 00085 unsigned n_ = 0; 00086 for (unsigned i = 0; i <= 255; ++i) 00087 { 00088 unsigned n_i; 00089 labeling::blobs((pw::value(lena) == pw::cst(i)) | lena.domain(), 00090 c4(), n_i); 00091 n_ += n_i; 00092 } 00093 mln_assertion(n_ == n); 00094 } 00095 00096 }