InformationChannel.C

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00001 /*!@file Channels/InformationChannel.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:
00034 // $HeadURL: svn://isvn.usc.edu/software/invt/trunk/saliency/src/Channels/InformationChannel.C $
00035 // $Id: InformationChannel.C 7434 2006-11-11 02:15:19Z rjpeters $
00036 //
00037 
00038 #ifndef INFORMATIONCHANNEL_C_DEFINED
00039 #define INFORMATIONCHANNEL_C_DEFINED
00040 
00041 #include "Channels/InformationChannel.H"
00042 
00043 #include "Image/ColorOps.H"
00044 
00045 // ######################################################################
00046 // Information channel member definitions
00047 // ######################################################################
00048 InformationChannel::InformationChannel(OptionManager& mgr) :
00049   SingleChannel(mgr, "Information", "information", INFORMATION,
00050                 rutz::shared_ptr< PyrBuilder<float> >(NULL)),
00051   itsEps("InformationChannelEps", this, 0.01f),
00052   itsMap()
00053 { }
00054 
00055 // ######################################################################
00056 InformationChannel::~InformationChannel()
00057 { }
00058 
00059 // ######################################################################
00060 bool InformationChannel::outputAvailable() const
00061 { return itsMap.initialized(); }
00062 
00063 // ######################################################################
00064 void InformationChannel::doInput(const InputFrame& inframe)
00065 {
00066   const LevelSpec ls = itsLevelSpec.getVal();
00067   ASSERT(ls.levMin() == ls.levMax());
00068   ASSERT(ls.delMin() == 0 && ls.delMax() == 0);
00069   ASSERT(ls.levMin() == ls.mapLevel());
00070   ASSERT(inframe.colorFloat().initialized());
00071 
00072   const uint lev = ls.mapLevel();
00073 
00074   // figure out the tile size and compute map:
00075   const int siz = 1 << lev;
00076   itsMap = infoMeasure(inframe.colorFloat(), itsEps.getVal(), siz); // Image_ColorOps.C
00077 }
00078 
00079 // ######################################################################
00080 Image<float> InformationChannel::getOutput()
00081 { return itsMap; }
00082 
00083 // ######################################################################
00084 /* So things look consistent in everyone's emacs... */
00085 /* Local Variables: */
00086 /* indent-tabs-mode: nil */
00087 /* End: */
00088 
00089 #endif // INFORMATIONCHANNEL_C_DEFINED
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