Pixels.C

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00001 /*!@file Image/Pixels.C Basic pixel types version 2.0 */
00002 
00003 // //////////////////////////////////////////////////////////////////// //
00004 // The iLab Neuromorphic Vision C++ Toolkit - Copyright (C) 2001 by the //
00005 // 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: T. Nathan Mundhenk <mundhenk@usc.edu>
00034 // $HeadURL: svn://isvn.usc.edu/software/invt/trunk/saliency/src/Image/Pixels.C $
00035 // $Id: Pixels.C 12598 2010-01-19 03:03:03Z dberg $
00036 //
00037 
00038 #include "Image/Pixels.H"
00039 
00040 #include "Util/StringConversions.H"
00041 
00042 #include <sstream>
00043 
00044 // ######################################################################
00045 // converters for PixRGB
00046 // ######################################################################
00047 std::string convertToString(const PixRGB<byte>& val)
00048 {
00049   std::stringstream s;
00050   s<<int(val.red())<<','<<int(val.green())<<','<<int(val.blue());
00051   return s.str();
00052 }
00053 
00054 // ######################################################################
00055 void convertFromString(const std::string& str, PixRGB<byte>& val)
00056 {
00057   if (str.length() > 0 && str[0] == '#') {
00058     // #RRGGBB format
00059     std::string str2 = str.substr(1);
00060     std::stringstream s; s<<std::hex<<str2; int rgb; s>>rgb;
00061     val.setRed((rgb & 0xff0000) >> 16);
00062     val.setGreen((rgb & 0xff00) >> 8);
00063     val.setBlue(rgb & 0xff);
00064   } else {
00065     // <byte>,<byte>,<byte> format
00066     std::stringstream s; int r = -1, g = -1, b = -1;
00067     char c; s<<str; s>>r>>c>>g>>c>>b;
00068     if (r == -1 || g == -1 || b == -1)
00069       conversion_error::raise<PixRGB<byte> >(str);
00070     val.set(r, g, b);
00071   }
00072 }
00073 
00074 // ######################################################################
00075 // converters for PixHSV
00076 // ######################################################################
00077 std::string convertToString(const PixHSV<byte>& val)
00078 {
00079   std::stringstream s;
00080   s<<int(val.H())<<','<<int(val.S())<<','<<int(val.V());
00081   return s.str();
00082 }
00083 
00084 // ######################################################################
00085 void convertFromString(const std::string& str, PixHSV<byte>& val)
00086 {
00087   // <byte>,<byte>,<byte> format
00088   std::stringstream ss; int h = -1, s = -1, v = -1;
00089   char c; ss<<str; ss>>h>>c>>s>>c>>v;
00090   if (h == -1 || s == -1 || v == -1)
00091     conversion_error::raise<PixHSV<byte> >(str);
00092   val.setH(h);
00093   val.setS(s);
00094   val.setV(v);
00095 }
00096 
00097 // ######################################################################
00098 // converters for PixDKL
00099 // ######################################################################
00100 std::string convertToString(const PixDKL<byte>& val)
00101 {
00102   std::stringstream s;
00103   s<<int(val.D())<<','<<int(val.K())<<','<<int(val.L());
00104   return s.str();
00105 }
00106 // ######################################################################
00107 void convertFromString(const std::string& str, PixDKL<byte>& val)
00108 {
00109   // <byte>,<byte>,<byte> format
00110   std::stringstream s; int d = -1, k = -1, l = -1;
00111   char c; s<<str; s>>d>>c>>k>>c>>l;
00112   if (d == -1 || k == -1 || l == -1)
00113     conversion_error::raise<PixDKL<byte> >(str);
00114   val.setD(d);
00115   val.setK(k);
00116   val.setL(l);
00117 }
00118 
00119 
00120 // ######################################################################
00121 /* So things look consistent in everyone's emacs... */
00122 /* Local Variables: */
00123 /* indent-tabs-mode: nil */
00124 /* End: */
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