mexPfmwrite.C

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00001 /*!@file Matlab/mexPfmwrite.C Write PFM images from matlab
00002  */
00003 
00004 // //////////////////////////////////////////////////////////////////// //
00005 // The iLab Neuromorphic Vision C++ Toolkit - Copyright (C) 2001 by the //
00006 // University of Southern California (USC) and the iLab at USC.         //
00007 // See http://iLab.usc.edu for information about this project.          //
00008 // //////////////////////////////////////////////////////////////////// //
00009 // Major portions of the iLab Neuromorphic Vision Toolkit are protected //
00010 // under the U.S. patent ``Computation of Intrinsic Perceptual Saliency //
00011 // in Visual Environments, and Applications'' by Christof Koch and      //
00012 // Laurent Itti, California Institute of Technology, 2001 (patent       //
00013 // pending; application number 09/912,225 filed July 23, 2001; see      //
00014 // http://pair.uspto.gov/cgi-bin/final/home.pl for current status).     //
00015 // //////////////////////////////////////////////////////////////////// //
00016 // This file is part of the iLab Neuromorphic Vision C++ Toolkit.       //
00017 //                                                                      //
00018 // The iLab Neuromorphic Vision C++ Toolkit is free software; you can   //
00019 // redistribute it and/or modify it under the terms of the GNU General  //
00020 // Public License as published by the Free Software Foundation; either  //
00021 // version 2 of the License, or (at your option) any later version.     //
00022 //                                                                      //
00023 // The iLab Neuromorphic Vision C++ Toolkit is distributed in the hope  //
00024 // that it will be useful, but WITHOUT ANY WARRANTY; without even the   //
00025 // implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      //
00026 // PURPOSE.  See the GNU General Public License for more details.       //
00027 //                                                                      //
00028 // You should have received a copy of the GNU General Public License    //
00029 // along with the iLab Neuromorphic Vision C++ Toolkit; if not, write   //
00030 // to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,   //
00031 // Boston, MA 02111-1307 USA.                                           //
00032 // //////////////////////////////////////////////////////////////////// //
00033 //
00034 // Primary maintainer for this file: Dirk Walther <walther@caltech.edu>
00035 // $HeadURL: svn://isvn.usc.edu/software/invt/trunk/saliency/src/Matlab/mexPfmwrite.C $
00036 // $Id: mexPfmwrite.C 6688 2006-06-06 19:29:43Z rjpeters $
00037 //
00038 
00039 #include <mex.h>
00040 
00041 #include "Matlab/mexConverts.H"
00042 #include "Image/Image.H"
00043 #include "Raster/Raster.H"
00044 
00045 #include <exception>
00046 
00047 // ##########################################################################
00048 //! Write a PFM image from matlab
00049 void mexFunction (int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
00050 {
00051   MYLOGVERB = LOG_INFO;
00052   LOG_FLAGS &= (~LFATAL_PRINTS_ABORT);
00053   LOG_FLAGS &= (~LFATAL_XTRA_NOISY);
00054 
00055   if (nrhs < 1)  mexErrMsgTxt("Missing required filename parameter");
00056   if (nrhs < 2)  mexErrMsgTxt("Missing required image parameter");
00057 
00058   try
00059     {
00060       // get the file name:
00061       const int siz = mxGetN(prhs[0]) + 1;
00062 
00063       // (no need to mxFree() this pointer; matlab does that
00064       // automatically when the mex function returns)
00065       char* fname = (char*)mxCalloc(siz, sizeof(char));
00066       mxGetString(prhs[0], fname, siz);
00067 
00068       // get the image:
00069       const Image<float> img = mexArray2Image<float>(prhs[1]);
00070 
00071       // write the image to disk:
00072       Raster::WriteFloat(img, FLOAT_NORM_PRESERVE, fname, RASFMT_PFM);
00073     }
00074   catch (std::exception& e)
00075     {
00076       mexErrMsgTxt(e.what());
00077     }
00078 }
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