FovealTransformModule.C

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00001 /*!@file SpaceVariant/FovealTransformModule.C space variant transformation module */
00002 
00003 // //////////////////////////////////////////////////////////////////// //
00004 // The iLab Neuromorphic Vision C++ Toolkit - Copyright (C) 2000-2003   //
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/SpaceVariant/FovealTransformModule.C $
00035 
00036 #include "SpaceVariant/FovealTransformModule.H"
00037 #include "SpaceVariant/SpaceVariantTransforms.H"
00038 #include "SpaceVariant/SpaceVariantOpts.H"
00039 #include "Channels/ChannelOpts.H"
00040 #include "Neuro/NeuroOpts.H"
00041 #include "Image/CutPaste.H"
00042 
00043 // ######################################################################
00044 // ######################################################################
00045 // ########## FovealTransformModule implementation
00046 // ######################################################################
00047 // ######################################################################
00048 FovealTransformModule::FovealTransformModule(OptionManager& mgr, const std::string& descrName, const std::string& tagName) :
00049   SpaceVariantModule(mgr, descrName, tagName),
00050   itsSvScale(&OPT_SpaceVariantScale, this),
00051   itsSvFovea(&OPT_SpaceVariantFoveaSize, this),
00052   itsSvSfac(&OPT_SpaceVariantSfac, this),
00053   itsSvBeta(&OPT_SpaceVariantBeta, this),
00054   itsSvGain(&OPT_SpaceVariantGain, this),
00055   itsSvExponent(&OPT_SpaceVariantExponent, this),
00056   itsSvOffset(&OPT_SpaceVariantOffset, this),
00057   itsFoveaCutoff(&OPT_SpaceVariantFovCut, this), 
00058   itsSvDims(&OPT_SpaceVariantDims, this),
00059   itsPPD(&OPT_PixelsPerDegree, this),
00060   itsLevelSpec(&OPT_LevelSpec, this)
00061 { }
00062 
00063 // ######################################################################
00064 FovealTransformModule::~FovealTransformModule()
00065 { }
00066 
00067 // ######################################################################
00068 void FovealTransformModule::clear(const Dims& inp_dims)
00069 {
00070   //one to transform retinal images
00071   FovealTransform* t = new FovealTransform();
00072   t->setup(inp_dims.w(), inp_dims.h(),
00073            itsSvDims.getVal().w(), itsSvDims.getVal().h(),
00074            itsSvFovea.getVal(), itsSvBeta.getVal(), 
00075            itsSvGain.getVal(), itsSvExponent.getVal(), itsSvOffset.getVal(),
00076            itsPPD.getVal().ppdx(), itsPPD.getVal().ppdy(), 
00077            FovealTransform::toScaleType(itsSvScale.getVal()), 
00078            itsSvSfac.getVal(), itsFoveaCutoff.getVal());
00079   itsTransform.reset(t);
00080   
00081   //this one gets used downstream to invert map level images
00082   const int w = inp_dims.w() >> itsLevelSpec.getVal().mapLevel();
00083   const int h = inp_dims.h() >> itsLevelSpec.getVal().mapLevel();
00084   const int svw = itsSvDims.getVal().w()*2 >> itsLevelSpec.getVal().mapLevel();
00085   const int svh = itsSvDims.getVal().h()/2 >> itsLevelSpec.getVal().mapLevel();
00086   
00087   FovealTransform* t1 = new FovealTransform();
00088   t1->setup(w, h, svw/2, svh*2,
00089             itsSvFovea.getVal(), itsSvBeta.getVal(), 
00090             itsSvGain.getVal(), itsSvExponent.getVal(), itsSvOffset.getVal(),
00091             itsPPD.getVal().ppdx(), itsPPD.getVal().ppdy(),
00092             FovealTransform::toScaleType(itsSvScale.getVal()), itsSvSfac.getVal(), 0.0);
00093   itsMapTransform.reset(t1);
00094   
00095   if ((w % 2 != 0) || (h % 2 != 0))
00096     LDEBUG("After pyramid operations, the input image is ideally divisible by two for "
00097            "space variant image processing. Try increasing the input image size or "
00098            "altering the pyramid depth or output level.");
00099   
00100   if (svh % 2 != 0)
00101     LDEBUG("After pyramid operations, the transformed is ideally divisible by two for "
00102            "space variant image processing. Try increasing the space variant height (angles) or "
00103            "altering the pyramid depth or output level.");
00104   
00105   LINFO("FovealTransform transform configured.");
00106 }
00107 
00108 // ######################################################################
00109 template <class T_or_RGB>
00110 void FovealTransformModule::getFoveaPeriphery(const Image<T_or_RGB>& ret_image, 
00111                                               Image<T_or_RGB>& fovea, Image<T_or_RGB>& periphery)
00112 {
00113   ::getFoveaPeriphery(static_cast<FovealTransform&>(*itsTransform), ret_image, fovea, periphery);
00114 }
00115 
00116 // ######################################################################
00117 Dims FovealTransformModule::getSVDims() const
00118 {
00119   return itsSvDims.getVal();
00120 }
00121 
00122 #define INST_CLASS FovealTransformModule::
00123 #include "inst/SpaceVariant/FovealTransformModule.I"
00124 // ######################################################################
00125 /* So things look consistent in everyone's emacs... */
00126 /* Local Variables: */
00127 /* indent-tabs-mode: nil */
00128 /* End: */
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