ColorizeOfilt.C

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/*!@file Transport/ColorizeOfilt.C */

// //////////////////////////////////////////////////////////////////// //
// 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/Transport/ColorizeOfilt.C $
// $Id: ColorizeOfilt.C 9500 2008-03-19 21:22:14Z rjpeters $
//

#ifndef TRANSPORT_COLORIZEOFILT_C_DEFINED
#define TRANSPORT_COLORIZEOFILT_C_DEFINED

#include "Transport/ColorizeOfilt.H"

#include "Image/ColorOps.H"
#include "Image/Image.H"
#include "Image/Normalize.H"
#include "Image/Pixels.H"
#include "Raster/GenericFrame.H"
#include "Transport/FrameInfo.H"

// ######################################################################
ColorizeOfilt::ColorizeOfilt(OptionManager& mgr,
                             const std::string& descrName,
                             const std::string& tagName)
  :
  FrameOfilt(mgr, descrName, tagName),
  itsColorMap(ColorMap::JET(256))
{}

// ######################################################################
ColorizeOfilt::~ColorizeOfilt()
{}

// ######################################################################
void ColorizeOfilt::filterFrame(FrameOstream& dest,
                                const GenericFrame& frame,
                                const std::string& shortname,
                                const FrameInfo& auxinfo)
{
  const GenericFrame::NativeType t = frame.nativeType();

  if (t == GenericFrame::GRAY_U8
      || (t == GenericFrame::VIDEO
          && frame.asVideo().getMode() == VIDFMT_GREY))
    {
      // colorize 8-bit grayscale
      dest.writeRGB(colorize(frame.asGrayU8(), itsColorMap),
                    shortname + "-colorized", auxinfo);
    }
  else if (t == GenericFrame::GRAY_F32)
    {
      // colorize 32-bit floating-point grayscale

      // TODO: do something more sophisticated with the 32-bit dynamic
      // range besides just truncating to 8 bits
      dest.writeRGB(colorize(normalizeFloat
                             (frame.asGrayF32(),
                              frame.floatFlags() | FLOAT_NORM_0_255),
                             itsColorMap),
                    shortname + "-colorized", auxinfo);
    }
  else if (t == GenericFrame::NONE
           || t == GenericFrame::RGB_U8
           || t == GenericFrame::RGB_F32
           || (t == GenericFrame::VIDEO
               && frame.asVideo().getMode() != VIDFMT_GREY))
    {
      // it's already in color, so just pass the frame through as-is
      dest.writeFrame(frame, shortname, auxinfo);
    }
  else
    LFATAL("Oops! Don't know how to generate luminance of %s image (%s)",
           frame.frameSpec().getDescription().c_str(),
           shortname.c_str());
}

// ######################################################################
/* So things look consistent in everyone's emacs... */
/* Local Variables: */
/* mode: c++ */
/* indent-tabs-mode: nil */
/* End: */

#endif // TRANSPORT_COLORIZEOFILT_C_DEFINED