Geotags image files

geotag

#!/bin/bash

# Felix E. Klee <felix.klee@inka.de>

if [ $# -ne 2 ]; then
    cat <<EOF
Usage: $0 GPSDIR DIR

Geotags image files in DIR using GPS tracks stored in GPSDIR.  The
tags are added in Exif data.  Files that already are geotagged are not
tagged again.
EOF
    
    exit 1
fi

GPSDIR=$1
DIR=$2

# Only tags files that were not already tagged by checking if
# `gpslatitude` is set, see:
# https://exiftool.org/forum/index.php?topic=15559.msg83566
exiftool -if 'not $gpslatitude' -geotag "$GPSDIR/*" \
         -q -q \
         -progress \
         -recurse \
         -overwrite_original \
         -ext jpg -ext jpef -ext tif -ext arw -ext nef -ext sr2 -ext dng \
         "$DIR"