00001 /*!@file Channels/HueChannel.H */ 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/HueChannel.H $ 00035 // $Id: HueChannel.H 7434 2006-11-11 02:15:19Z rjpeters $ 00036 // 00037 00038 #ifndef HUECHANNEL_H_DEFINED 00039 #define HUECHANNEL_H_DEFINED 00040 00041 #include "Channels/SingleChannel.H" 00042 00043 // ###################################################################### 00044 //! A hue similarity channel 00045 /*! Hue is represented as a bivariate Gaussian distibution in 00046 the C.I.E. color space, which is R/I vs. G/I.*/ 00047 class HueChannel : public SingleChannel 00048 { 00049 public: 00050 00051 //! Constructor with parameters of the bivariate Gaussian 00052 /*!@param mgr the ModelManager to assign this channel to 00053 @param muR the mean of the distribution in the R/I coordinate 00054 @param muG the mean in the G/I coordinate of the C.I.E. color space 00055 @param sigR the std in R/I 00056 @param sigG the std in G/I 00057 @param rho the correlation between R/I and G/I */ 00058 HueChannel(OptionManager& mgr, 00059 float muR, float muG, 00060 float sigR, float sigG, float rho); 00061 00062 //! Constuctor with sample pixel and std 00063 /*! Simplified version of the constructor that derives 00064 muR and muG from the pixel value hue, and it assumes 00065 that sigR=sigG=sig, and rho = 0.*/ 00066 HueChannel(OptionManager& mgr, 00067 const PixRGB<byte> hue, 00068 float sig = 0.04); 00069 00070 //! virtual destructor for inheritance 00071 virtual ~HueChannel(); 00072 00073 //! Combine all feature maps into a single output map 00074 /*! This overrides SingleChannel::combineSubMaps. 00075 Instead of doing center-surround and combining across scales, 00076 we just return the hue-filtered image at the map 00077 resolution.*/ 00078 Image<float> combineSubMaps(); 00079 00080 //! always returns 1 00081 virtual uint numSubmaps() const; 00082 00083 //! This is just a caching wrapper around computeSubmap() 00084 virtual Image<float> getSubmap(const uint index) const; 00085 00086 //! Always returns "Hue" 00087 virtual std::string getSubmapName(const uint index) const; 00088 00089 00090 protected: 00091 //! special input function to compute the hue distance map 00092 virtual void doInput(const InputFrame& inframe); 00093 00094 float itsMuR, itsMuG, itsSigR, itsSigG, itsRho; 00095 }; 00096 00097 // ###################################################################### 00098 /* So things look consistent in everyone's emacs... */ 00099 /* Local Variables: */ 00100 /* indent-tabs-mode: nil */ 00101 /* End: */ 00102 00103 #endif // HUECHANNEL_H_DEFINED
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