IntegerDirectionChannel.C

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00001 /*!@file Channels/IntegerDirectionChannel.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: Rob Peters <rjpeters at usc dot edu>
00034 // $HeadURL: svn://isvn.usc.edu/software/invt/trunk/saliency/src/Channels/IntegerDirectionChannel.C $
00035 // $Id: IntegerDirectionChannel.C 8744 2007-09-05 21:17:53Z rjpeters $
00036 //
00037 
00038 #ifndef CHANNELS_INTEGERDIRECTIONCHANNEL_C_DEFINED
00039 #define CHANNELS_INTEGERDIRECTIONCHANNEL_C_DEFINED
00040 
00041 #include "Channels/IntegerDirectionChannel.H"
00042 
00043 #include "Channels/ChannelOpts.H"
00044 #include "Component/ModelOptionDef.H"
00045 #include "Component/OptionManager.H"
00046 #include "Image/ImageSetOps.H"
00047 #include "Image/IntegerMathOps.H"
00048 #include "Image/MathOps.H"
00049 #include "Util/sformat.H"
00050 #include "rutz/compat_cmath.h" // for M_PI
00051 #include "rutz/trace.h"
00052 
00053 // ######################################################################
00054 // IntegerDirectionChannel member definitions:
00055 // ######################################################################
00056 
00057 // ######################################################################
00058 IntegerDirectionChannel::
00059 IntegerDirectionChannel(OptionManager& mgr,
00060                         const uint dirIndex,
00061                         const double direction,
00062                         const int dxnumer, const int dynumer,
00063                         const uint denombits,
00064                         nub::ref<IntegerMathEngine> eng) :
00065   IntegerSimpleChannel(mgr, "", "", MOTION,
00066                        rutz::make_shared
00067                        (new IntgReichardtPyrBuilder
00068                         (dxnumer, dynumer, denombits,
00069                          eng->getImath())),
00070                        eng),
00071   itsIndex("IntegerDirectionChannelIndex", this, dirIndex),
00072   itsDirection("IntegerDirectionChannelDirection", this, direction),
00073   itsThresh(&OPT_DirectionChannelLowThresh, this)
00074 {
00075 GVX_TRACE(__PRETTY_FUNCTION__);
00076   itsTakeAbs.setVal(true);
00077   itsNormalizeOutput.setVal(true);
00078   itsScaleNoiseToMax.setVal(true);
00079   // kill small values in pyramid:
00080   const float fthresh = itsThresh.getVal();
00081   itsLowThresh.setVal(intgScaleFromFloat(&fthresh,
00082                                          this->getImath()->nbits));
00083   // kill negative values in pyramid:
00084   itsRectifyPyramid.setVal(true);
00085 
00086   setDescriptiveName(sformat("Integer Direction(%d)", int(direction)));
00087   setTagName(sformat("int-dir_%d", dirIndex));
00088 }
00089 
00090 // ######################################################################
00091 void IntegerDirectionChannel::start1()
00092 {
00093 GVX_TRACE(__PRETTY_FUNCTION__);
00094   // kill small values in pyramid:
00095   const float fthresh = itsThresh.getVal();
00096   itsLowThresh.setVal(intgScaleFromFloat(&fthresh,
00097                                          this->getImath()->nbits));
00098 
00099   IntegerSimpleChannel::start1();
00100 }
00101 
00102 // ######################################################################
00103 IntegerDirectionChannel::~IntegerDirectionChannel()
00104 {
00105 GVX_TRACE(__PRETTY_FUNCTION__);
00106 }
00107 
00108 // ######################################################################
00109 /* So things look consistent in everyone's emacs... */
00110 /* Local Variables: */
00111 /* mode: c++ */
00112 /* indent-tabs-mode: nil */
00113 /* End: */
00114 
00115 #endif // CHANNELS_INTEGERDIRECTIONCHANNEL_C_DEFINED
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