/usr/bin/pfsinhdrgen is in pfstools 2.1.0-3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | #!/usr/bin/perl -w
#
# This file is a part of PFS CALIBRATION package.
# ----------------------------------------------------------------------
# Copyright (C) 2004 Grzegorz Krawczyk, <gkrawczyk@users.sourceforge.net>
#
# 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
# ----------------------------------------------------------------------
#
# $Id: pfsinhdrgen,v 1.5 2007/08/28 15:15:24 gkrawczyk Exp $
use Getopt::Long;
#--- check params
GetOptions ('v|verbose' => \$verbose,
'h|help' => \$help);
if( $help or @ARGV<1 ) {
print STDERR "Usage: pfsinhdrgen [--verbose] <file.hdrgen>\n";
exit;
}
($hdrgen) = $ARGV[0];
(-e $hdrgen) or die "File does not exist '$hdrgen'";
open HDRGEN, "<$hdrgen";
#--- parse file
while( $line=<HDRGEN> )
{
@token = split " ", $line;
$file = $token[0];
$inv_exposure_time = $token[1];
$aperture = $token[2];
$iso_speed = $token[3];
## defaults
$iso_speed = 100 if( $iso_speed==0);
$aperture = 1.0 if( $aperture==0);
## APEX calculations
$Av = 2 * log($aperture) / log(2);
$Tv = log($inv_exposure_time) / log(2);
$exposure_time = 1 / $inv_exposure_time;
$Sv = log( $iso_speed / 3.125 ) / log(2);
## Brightness value
$Bv = $Av+$Tv-$Sv;
(-e $file) or die "Missing image '$file'";
print STDERR "pfsinhdrgen: reading $file (iso$iso_speed,f/$aperture,t=$inv_exposure_time)\n" if( $verbose );;
system "pfsin $file | pfstag --set \"BV=$Bv\" --set \"ISO=$iso_speed\" --set \"aperture=$aperture\" --set \"exposure_time=$exposure_time\"\n";
}
close HDRGEN;
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