/usr/bin/jpeg2hdrgen 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 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 | #!/bin/bash
#
# 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: jpeg2hdrgen,v 1.9 2013/11/10 21:10:02 rafm Exp $
LC_NUMERIC=POSIX # ensure dot is used as the decimal separator
export LC_NUMERIC
LC_ALL=POSIX # apparently this is necessary on Gentoo
export LC_ALL
JHEAD="jhead" # program for extracting exif info from jpegs
IDENTIFY="identify" # alternative program from ImageMagics
TEST_IDENTIFY=`which $IDENTIFY 2>/dev/null` || TEST_JHEAD=`which $JHEAD 2>/dev/null`;
if [ -z "$TEST_JHEAD" ] && [ -z "$TEST_IDENTIFY" ]; then
echo "Either 'jhead' or 'identify' (part of ImageMagic) is required to run this script." >&2
echo "Install appropriate software, for example from:" >&2
echo "http://www.sentex.net/~mwandel/jhead/" >&2
exit 1;
fi
#Note: Double backslash MUST be put in front of each $ sign
AWK_PROGRAM_JHEAD=`cat <<EOF
BEGIN {
exposure="";
aperture="";
}
END {
if( aperture=="" )
aperture=1;
if( iso_speed=="" )
iso_speed=100;
if( exposure=="" )
printf("not recognized exif header!\n");
else
print exposure " " aperture " " iso_speed " 0";
}
/^Exposure time: ([0-9]*\.[0-9]) */ {
exposure = 1/\\$3;
}
/^Aperture *: f\/([0-9]*\.[0-9]*)/ {
aperture = substr(\\$3,3);
}
/^ISO equiv. *: ([0-9]*\.?[0-9]*)/ {
iso_speed = \\$4;
}
EOF`
#Note: Double backslash MUST be put in front of each $ sign
AWK_PROGRAM_IDENTIFY=`cat <<EOF
BEGIN {
exposure="";
aperture="";
FS="=";
}
END {
if( aperture=="" )
aperture=1;
if( iso_speed=="" )
iso_speed=100;
if( exposure=="" )
printf("not recognized exif header!\n");
else
print exposure " " aperture " " iso_speed " 0";
}
/^exif:ExposureTime=([0-9]+\/?[0-9]*)/ {
split( \\$2, ex_info, "/" );
exposure = ex_info[2] / ex_info[1];
}
/^exif:FNumber=([0-9]+\/?[0-9]*)/ {
split( \\$2, ex_info, "/" );
aperture = ex_info[1] / ex_info[2];;
}
/^exif:ISOSpeedRatings=([0-9]*\.?[0-9]*)/ {
iso_speed = \\$2;
}
EOF`
while [ "$1" != "" ]; do
if [ ! -z "$TEST_IDENTIFY" ]; then
EXPOSURE_INFO=`$IDENTIFY -format \"%[exif:*]\" "$1" | awk "$AWK_PROGRAM_IDENTIFY"`
else
EXPOSURE_INFO=`$JHEAD "$1" | awk "$AWK_PROGRAM_JHEAD"`
fi
echo "$1" $EXPOSURE_INFO
shift
done
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