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|
#!/bin/sh
die()
{
echo "$*"
exit 1
}
usage()
{
echo "Usage: $0 [options] filename-base [scanimage options]"
echo
echo "Options:"
echo " --startcount XXX Start filename count at XXX"
echo " --resolution XXX Scan resolution in DPI"
echo " --format XXX Set output format. Default jpg"
echo " --quality XX Output quality. Default 90"
exit 1
}
[ $# -ge 1 ] || usage
count=0
resolution=
out_format="jpg"
out_quality="90"
while [ $# -ge 1 ]; do
case "$1" in
-h|--help)
usage
;;
--startcount)
shift
count="$1"
expr "$count" + 1 >/dev/null 2>&1 ||\
die "--startcount is not numeric"
;;
--format)
shift
out_format="$1"
;;
--resolution)
shift
resolution="$1"
;;
--quality)
shift
out_quality="$1"
;;
*)
break
;;
esac
shift
done
filename_base="$1"
shift
[ -n "$filename_base" ] || die "No filename base"
cont_prompt()
{
printf '\nGoing to scan page %03d\n' "$count"
[ $first -eq 0 ] && {
read -p "[Press enter to continue or ^C to abort]" RES
}
first=0
}
do_scanimage()
{
echo "Running: scanimage $* > $filename" >&2
scanimage "$@" || die "scanimage failed"
}
find_device()
{
scanimage -L | while read line; do
echo "$line" | grep -qEe '(/dev/video)|(Failed cupsGetDevices)' || {
echo -n "$line" | cut -d'`' -f2 | cut -d\' -f1
break
}
done
}
echo "Searching for scanner..."
dev="$(find_device)"
[ -n "$dev" ] || die "Did not find a scanner"
echo "Using scanner '$dev'"
first=1
while cont_prompt; do
filename="$(printf '%s-%03d.pnm' "$filename_base" "$count")"
opts=
[ -n "$resolution" ] && opts="$opts --resolution $resolution"
do_scanimage -d "$dev" \
--mode Color \
-l 0 -t 0 -x 210 -y 297 \
--format=pnm \
$opts \
"$@" > "$filename"
[ "$out_format" = "jpg" ] && {
jpg_filename="$(basename "$filename" .pnm).jpg"
echo "Converting to '$jpg_filename'..."
convert pnm:"$filename" \
-quality "$out_quality" jpg:"$jpg_filename" ||\
die "Failed to convert image to jpg"
rm "$filename"
}
count="$(expr "$count" + 1)"
done
|
