env_motion_channel.h

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00001 /*!@file Envision/env_motion_channel.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: Rob Peters <rjpeters at usc dot edu>
00034 // $HeadURL: svn://isvn.usc.edu/software/invt/trunk/saliency/src/Envision/env_motion_channel.h $
00035 // $Id: env_motion_channel.h 8422 2007-05-23 19:20:28Z rjpeters $
00036 //
00037 
00038 #ifndef ENVISION_ENV_MOTION_CHANNEL_H_DEFINED
00039 #define ENVISION_ENV_MOTION_CHANNEL_H_DEFINED
00040 
00041 #include "Envision/env_channel.h"
00042 #include "Envision/env_config.h"
00043 #include "Envision/env_pyr.h"
00044 #include "Envision/env_types.h"
00045 
00046 struct env_dims;
00047 struct env_image;
00048 struct env_params;
00049 struct env_math;
00050 
00051 #ifdef ENV_WITH_DYNAMIC_CHANNELS
00052 
00053 // ######################################################################
00054 //! A composite channel containing a set of direction channels
00055 struct env_motion_channel
00056 {
00057         struct env_pyr unshifted_prev;
00058         env_size_t num_directions;
00059         struct env_pyr* shifted_prev;
00060 };
00061 
00062 #ifdef __cplusplus
00063 extern "C"
00064 {
00065 #endif
00066 
00067         void env_motion_channel_init(struct env_motion_channel* chan,
00068                                      const struct env_params* envp);
00069 
00070         void env_motion_channel_destroy(struct env_motion_channel* chan);
00071 
00072         /// env_motion_channel only requires luminosity input
00073         /** for efficiency, the motion channel takes ownership of the
00074             lowpass5 pyramid (rather than needing to make a copy of
00075             it), so that after this function the lowpass5 argument
00076             will point to an empty pyramid */
00077         void env_motion_channel_input_and_consume_pyr(
00078                 struct env_motion_channel* chan,
00079                 const char* tagName,
00080                 const struct env_params* envp,
00081                 const struct env_math* imath,
00082                 const struct env_dims inputdims,
00083                 struct env_pyr* lowpass5,
00084                 env_chan_status_func* status_func,
00085                 void* status_userdata,
00086                 struct env_image* result);
00087 
00088 #ifdef __cplusplus
00089 }
00090 #endif
00091 
00092 #endif // ENV_WITH_DYNAMIC_CHANNELS
00093 
00094 // ######################################################################
00095 /* So things look consistent in everyone's emacs... */
00096 /* Local Variables: */
00097 /* indent-tabs-mode: nil */
00098 /* c-file-style: "linux" */
00099 /* End: */
00100 
00101 #endif // ENVISION_ENV_MOTION_CHANNEL_H_DEFINED
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