Milena (Olena)
User documentation 2.0a Id
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00001 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE) 00002 // 00003 // This file is part of Olena. 00004 // 00005 // Olena is free software: you can redistribute it and/or modify it under 00006 // the terms of the GNU General Public License as published by the Free 00007 // Software Foundation, version 2 of the License. 00008 // 00009 // Olena is distributed in the hope that it will be useful, 00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 // General Public License for more details. 00013 // 00014 // You should have received a copy of the GNU General Public License 00015 // along with Olena. If not, see <http://www.gnu.org/licenses/>. 00016 // 00017 // As a special exception, you may use this file as part of a free 00018 // software project without restriction. Specifically, if other files 00019 // instantiate templates or use macros or inline functions from this 00020 // file, or you compile this file and link it with other files to produce 00021 // an executable, this file does not by itself cause the resulting 00022 // executable to be covered by the GNU General Public License. This 00023 // exception does not however invalidate any other reasons why the 00024 // executable file might be covered by the GNU General Public License. 00025 00026 #include <iterator> 00027 #include <sstream> 00028 00029 #include <mln/core/image/image2d.hh> 00030 #include <mln/value/int_u8.hh> 00031 #include <mln/value/int_s.hh> 00032 00033 #include <mln/debug/iota.hh> 00034 #include <mln/debug/println.hh> 00035 #include <mln/accu/histo.hh> 00036 #include <mln/histo/compute.hh> 00037 00038 #include <mln/opt/at.hh> 00039 00040 00041 int main() 00042 { 00043 using namespace mln; 00044 using value::int_u8; 00045 00046 // Test on 'bool'. 00047 { 00048 accu::histo<bool> h; 00049 00050 for (unsigned i = 0; i < 5; ++i) 00051 h.take(false); 00052 for (unsigned i = 0; i < 2; ++i) 00053 h.take(true); 00054 h.untake(true); 00055 00056 mln_assertion(h[0] * 10 + h[1] == 51); 00057 mln_assertion(h(false) * 10 + h(true) == 51); 00058 } 00059 00060 // Test on 'int_u8'. 00061 { 00062 image2d<int_u8> ima(3, 3); 00063 debug::iota(ima); 00064 opt::at(ima, 0,0) = 2; 00065 00066 histo::array<int_u8> h = histo::compute(ima); 00067 std::ostringstream oss; 00068 oss << h; 00069 mln_assertion(oss.str() == "2:2 3:1 4:1 5:1 6:1 7:1 8:1 9:1 "); 00070 00071 int_u8 i = 2; 00072 mln_assertion(h(i) == 2); 00073 } 00074 00075 // Test on 'int_s5'; the value set is { -15, .., -1, 0, 1, .., 15 } 00076 // the corresponding indices are: 0 .. 14 15 16 .. 30 00077 { 00078 typedef value::int_s<5> int_s5; 00079 image2d<int_s5> ima(3, 3); 00080 debug::iota(ima); 00081 00082 histo::array<int_s5> h = histo::compute(ima); 00083 mln_assertion(h.vset().nvalues() == 31); 00084 00085 for (unsigned i = 0; i <= 15; ++i) // values from -15 to 0 00086 mln_assertion(h[i] == 0); 00087 for (unsigned i = 25; i <= 30; ++i) // values from 10 to 15 00088 mln_assertion(h[i] == 0); 00089 } 00090 00091 }