00001 /*!@file Psycho/PixPerDeg.C */ 00002 00003 // //////////////////////////////////////////////////////////////////// // 00004 // The iLab Neuromorphic Vision C++ Toolkit - Copyright (C) 2000-2005 // 00005 // by the University of Southern California (USC) and the iLab at USC. // 00006 // See http://iLab.usc.edu for information about this project. // 00007 // //////////////////////////////////////////////////////////////////// // 00008 // Major portions of the iLab Neuromorphic Vision Toolkit are protected // 00009 // under the U.S. patent ``Computation of Intrinsic Perceptual Saliency // 00010 // in Visual Environments, and Applications'' by Christof Koch and // 00011 // Laurent Itti, California Institute of Technology, 2001 (patent // 00012 // pending; application number 09/912,225 filed July 23, 2001; see // 00013 // http://pair.uspto.gov/cgi-bin/final/home.pl for current status). // 00014 // //////////////////////////////////////////////////////////////////// // 00015 // This file is part of the iLab Neuromorphic Vision C++ Toolkit. // 00016 // // 00017 // The iLab Neuromorphic Vision C++ Toolkit is free software; you can // 00018 // redistribute it and/or modify it under the terms of the GNU General // 00019 // Public License as published by the Free Software Foundation; either // 00020 // version 2 of the License, or (at your option) any later version. // 00021 // // 00022 // The iLab Neuromorphic Vision C++ Toolkit is distributed in the hope // 00023 // that it will be useful, but WITHOUT ANY WARRANTY; without even the // 00024 // implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR // 00025 // PURPOSE. See the GNU General Public License for more details. // 00026 // // 00027 // You should have received a copy of the GNU General Public License // 00028 // along with the iLab Neuromorphic Vision C++ Toolkit; if not, write // 00029 // to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, // 00030 // Boston, MA 02111-1307 USA. // 00031 // //////////////////////////////////////////////////////////////////// // 00032 // 00033 // Primary maintainer for this file: David J. Berg <dberg@usc.edu> 00034 // $HeadURL: svn://isvn.usc.edu:/software/invt/trunk/saliency/src/Psycho/PixPerDeg.C $ 00035 00036 #include "Psycho/PixPerDeg.H" 00037 #include "Util/StringConversions.H" 00038 #include "Util/log.H" 00039 00040 #include <sstream> 00041 00042 // ###################################################################### 00043 PixPerDeg::PixPerDeg() : 00044 itsPPDx(0.0F), itsPPDy(0.0F) { } 00045 00046 // ###################################################################### 00047 PixPerDeg::PixPerDeg(const float& ppdx, const float& ppdy) : 00048 itsPPDx(ppdx), itsPPDy(ppdy) { } 00049 00050 // ###################################################################### 00051 PixPerDeg::~PixPerDeg() { } 00052 00053 // ###################################################################### 00054 float PixPerDeg::ppd() const 00055 { return (itsPPDy == 0.0F) ? itsPPDx : (itsPPDx + itsPPDy)/2.0F; } 00056 00057 // ###################################################################### 00058 float PixPerDeg::ppdx() const 00059 { return itsPPDx; } 00060 00061 // ###################################################################### 00062 float PixPerDeg::ppdy() const 00063 { return (itsPPDy == 0.0F) ? itsPPDx : itsPPDy; } 00064 00065 // ###################################################################### 00066 bool PixPerDeg::operator==(const PixPerDeg& x) const throw() 00067 { return itsPPDx == x.itsPPDx && itsPPDy == x.itsPPDy; } 00068 00069 // ###################################################################### 00070 bool PixPerDeg::operator!=(const PixPerDeg& x) const throw() 00071 { return itsPPDx != x.itsPPDx || itsPPDy != x.itsPPDy; } 00072 00073 // ###################################################################### 00074 std::string convertToString(const PixPerDeg& val) 00075 { 00076 std::stringstream s; s << val.ppdx() << ',' << val.ppdy(); return s.str(); 00077 } 00078 00079 // ###################################################################### 00080 void convertFromString(const std::string& str, PixPerDeg& val) 00081 { 00082 std::stringstream s; float w = -1.0F, h = -1.0F; char c; 00083 s<<str; s>>w; s>>c; s>>h; 00084 if (w < 0.0F || h < 0.0F || c != ',') 00085 conversion_error::raise<PixPerDeg>(str); 00086 val = PixPerDeg(w, h); 00087 } 00088 00089 // ###################################################################### 00090 /* So things look consistent in everyone's emacs... */ 00091 /* Local Variables: */ 00092 /* mode: c++ */ 00093 /* indent-tabs-mode: nil */ 00094 /* End: */
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