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/**
* @brief Read files using ImageMagics++ library
*
* This file is a part of PFSTOOLS package.
* ----------------------------------------------------------------------
* Copyright (C) 2003,2004 Rafal Mantiuk and Grzegorz Krawczyk
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* ----------------------------------------------------------------------
*
* @author Rafal Mantiuk, <mantiuk@mpi-sb.mpg.de>
*
* $Id: pfsinimgmagick.cpp,v 1.6 2014/09/03 08:57:48 rafm Exp $
*/
#include <config.h>
#include <Magick++.h>
#include <iostream>
#include <getopt.h>
#include <pfs.h>
#define PROG_NAME "pfsinimgmagick"
using namespace Magick;
class QuietException
{
};
void printHelp()
{
std::cerr << PROG_NAME " [--linear] [--absolute <max_lum>] [--verbose] [--help]" << std::endl
<< "See man page for more information." << std::endl;
}
void readFrames( int argc, char* argv[] )
{
pfs::DOMIO pfsio;
bool verbose = false;
bool opt_linear=false;
float absoluteMaxLum = 0;
// Parse command line parameters
static struct option cmdLineOptions[] = {
{ "help", no_argument, NULL, 'h' },
{ "verbose", no_argument, NULL, 'v' },
{ "linear", no_argument, NULL, 'l' },
{ "absolute", required_argument, NULL, 'a' },
{ NULL, 0, NULL, 0 }
};
static const char optstring[] = "lhva:";
pfs::FrameFileIterator it( argc, argv, "rb", NULL, NULL,
optstring, cmdLineOptions );
int optionIndex = 0;
while( 1 ) {
int c = getopt_long (argc, argv, optstring, cmdLineOptions, &optionIndex);
if( c == -1 ) break;
switch( c ) {
case 'h':
printHelp();
throw QuietException();
case 'v':
verbose = true;
break;
case 'l':
opt_linear = true;
break;
case 'a':
absoluteMaxLum = (float)strtod( optarg, NULL );
break;
case '?':
throw QuietException();
case ':':
throw QuietException();
}
}
if( absoluteMaxLum != 0 && opt_linear )
throw pfs::Exception( "'absolute' and 'linear' are conflicting options" );
if( absoluteMaxLum < 0 )
throw pfs::Exception( "maximum absolute luminance must be > 0" );
VERBOSE_STR << "linearize input image: " << ((opt_linear || absoluteMaxLum!=0) ? "yes" : "no") << std::endl;
if( absoluteMaxLum != 0 )
VERBOSE_STR << "maximum absolute luminance: " << absoluteMaxLum << std::endl;
Magick::InitializeMagick("");
while( true ) {
pfs::FrameFile ff = it.getNextFrameFile();
if( ff.fh == NULL ) break; // No more frames
it.closeFrameFile( ff );
VERBOSE_STR << "reading file '" << ff.fileName << "'" << std::endl;
Magick::Image imImage( ff.fileName );
VERBOSE_STR << "input image gamma: " << imImage.gamma() << std::endl;
#if MagickLibVersion >= 0x700
bool hasAlpha = imImage.alpha();
#else
bool hasAlpha = imImage.matte();
#endif
if( hasAlpha )
VERBOSE_STR << "alpha channel found" << std::endl;
pfs::Frame *frame = pfsio.createFrame( imImage.columns(),
imImage.rows() );
pfs::Channel *X, *Y, *Z;
frame->createXYZChannels( X, Y, Z );
pfs::Channel *alpha = NULL;
if( hasAlpha )
alpha = frame->createChannel( "ALPHA" );
// Copy line by line to pfs::Frame
int pixInd = 0;
const float maxValue = (float)QuantumRange;
for( int r = 0; r < imImage.rows(); r++ ) {
#if MagickLibVersion >= 0x700
const Magick::Quantum *pixels =
#else
const Magick::PixelPacket *pixels =
#endif
imImage.getConstPixels( 0, r, imImage.columns(), 1 );
for( int c = 0; c < imImage.columns(); c++ ) {
#if MagickLibVersion >= 0x700
(*X)(pixInd) = (float)MagickCore::GetPixelRed(imImage.image(), pixels) / maxValue;
(*Y)(pixInd) = (float)MagickCore::GetPixelGreen(imImage.image(), pixels) / maxValue;
(*Z)(pixInd) = (float)MagickCore::GetPixelBlue(imImage.image(), pixels) / maxValue;
if( alpha != NULL )
(*alpha)(pixInd) = (float)MagickCore::GetPixelAlpha(imImage.image(), pixels) / maxValue;
pixels += MagickCore::GetPixelChannels(imImage.image());
#else
(*X)(pixInd) = (float)pixels[c].red / maxValue;
(*Y)(pixInd) = (float)pixels[c].green / maxValue;
(*Z)(pixInd) = (float)pixels[c].blue / maxValue;
if( alpha != NULL )
(*alpha)(pixInd) = (float)pixels[c].opacity / maxValue;
#endif
pixInd++;
}
}
// Linearize data is necessary
if( opt_linear || absoluteMaxLum != 0 )
{
pfs::transformColorSpace( pfs::CS_SRGB, X, Y, Z, pfs::CS_XYZ, X, Y, Z );
if( absoluteMaxLum != 0 ) {
// Rescale to absolute luminance level
const int pixCount = X->getWidth()*X->getHeight();
for( int i = 0; i < pixCount; i++ ) {
(*X)(i) *= absoluteMaxLum;
(*Y)(i) *= absoluteMaxLum;
(*Z)(i) *= absoluteMaxLum;
}
frame->getTags()->setString("LUMINANCE", "ABSOLUTE");
} else
frame->getTags()->setString("LUMINANCE", "RELATIVE");
}
else
{
pfs::transformColorSpace( pfs::CS_RGB, X, Y, Z, pfs::CS_XYZ, X, Y, Z );
frame->getTags()->setString("LUMINANCE", "DISPLAY");
}
// This is the luminance / luma perceived as reference white
// Some tone-mappers may need this
frame->getTags()->setString("WHITE_Y", "1");
const char *fileNameTag = strcmp( "-", ff.fileName )==0 ? "stdin" : ff.fileName;
frame->getTags()->setString( "FILE_NAME", fileNameTag );
char strbuf[3];
snprintf( strbuf, 3, "%d", (int)imImage.depth() );
frame->getTags()->setString("BITDEPTH", strbuf );
pfsio.writeFrame( frame, stdout );
pfsio.freeFrame( frame );
}
}
int main( int argc, char* argv[] )
{
try {
readFrames( argc, argv );
}
catch( pfs::Exception ex ) {
std::cerr << PROG_NAME << " error: " << ex.getMessage() << std::endl;
return EXIT_FAILURE;
}
catch( Magick::Exception &ex ) { //This is comming from ImageMagick
std::cerr << PROG_NAME << " error: " << ex.what() << std::endl;
return EXIT_FAILURE;
}
catch( QuietException ex ) {
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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