env_motion_channel.h

Go to the documentation of this file.

/*!@file env_motion_channel.h */
 
// //////////////////////////////////////////////////////////////////// //
// The iLab Neuromorphic Vision C++ Toolkit - Copyright (C) 2000-2005   //
// by the University of Southern California (USC) and the iLab at USC.  //
// See http://iLab.usc.edu for information about this project.          //
// //////////////////////////////////////////////////////////////////// //
// Major portions of the iLab Neuromorphic Vision Toolkit are protected //
// under the U.S. patent ``Computation of Intrinsic Perceptual Saliency //
// in Visual Environments, and Applications'' by Christof Koch and      //
// Laurent Itti, California Institute of Technology, 2001 (patent       //
// pending; application number 09/912,225 filed July 23, 2001; see      //
// http://pair.uspto.gov/cgi-bin/final/home.pl for current status).     //
// //////////////////////////////////////////////////////////////////// //
// This file is part of the iLab Neuromorphic Vision C++ Toolkit.       //
//                                                                      //
// The iLab Neuromorphic Vision C++ Toolkit is free software; you can   //
// redistribute it and/or modify it under the terms of the GNU General  //
// Public License as published by the Free Software Foundation; either  //
// version 2 of the License, or (at your option) any later version.     //
//                                                                      //
// The iLab Neuromorphic Vision C++ Toolkit is distributed in the hope  //
// that it will be useful, but WITHOUT ANY WARRANTY; without even the   //
// implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      //
// PURPOSE.  See the GNU General Public License for more details.       //
//                                                                      //
// You should have received a copy of the GNU General Public License    //
// along with the iLab Neuromorphic Vision C++ Toolkit; if not, write   //
// to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,   //
// Boston, MA 02111-1307 USA.                                           //
// //////////////////////////////////////////////////////////////////// //
//
// Primary maintainer for this file: Rob Peters <rjpeters at usc dot edu>
// $HeadURL: svn://isvn.usc.edu/software/invt/trunk/saliency/src/Envision/env_motion_channel.h $
// $Id: env_motion_channel.h 8422 2007-05-23 19:20:28Z rjpeters $
//
 
#pragma once
 
#include <jevoisbase/Components/Saliency/env_channel.h>
#include <jevoisbase/Components/Saliency/env_config.h>
#include <jevoisbase/Components/Saliency/env_pyr.h>
#include <jevoisbase/Components/Saliency/env_types.h>
 
struct env_dims;
struct env_image;
struct env_params;
struct env_math;
 
// ######################################################################
//! A composite channel containing a set of direction channels
struct env_motion_channel
{
    struct env_pyr unshifted_prev;
    env_size_t num_directions;
    struct env_pyr* shifted_prev;
};
 
#ifdef __cplusplus
extern "C"
{
#endif
  
  void env_motion_channel_init(struct env_motion_channel* chan,
                               const struct env_params* envp);
  
  void env_motion_channel_destroy(struct env_motion_channel* chan);
  
  /// env_motion_channel only requires luminosity input
  /** for efficiency, the motion channel takes ownership of the lowpass5 pyramid (rather than needing to make a copy of
      it), so that after this function the lowpass5 argument will point to an empty pyramid */
  void env_motion_channel_input_and_consume_pyr(
                                                struct env_motion_channel* chan,
                                                const char* tagName,
                                                const struct env_params* envp,
                                                const struct env_math* imath,
                                                const struct env_dims inputdims,
                                                struct env_pyr* lowpass5,
                                                env_chan_status_func* status_func,
                                                void* status_userdata,
                                                struct env_image* result);
  
#ifdef __cplusplus
}
#endif