each with only one page.
OPTIONS:
-v: Be verbose.
- -d depth: Use given depth. Default is 1 for black and white, 8 for colour.
+ -d depth: Use given depth. Default is 1 for black and white, 8 for colour/gray.
Unpaper can only handle up to 8.
-D dpi: Use given DPI. Colour scans on library scanners are usually 300, bw 400.
-F extension: use the output format signified by the extension. Default is png
-f: Forceably redo everything.
-p: Forceably redo pdf conversion. Implies options below, equivalent to -f.
-m: Forceably redo masking/trimming and other preprocessing. Impiles options below.
- -u: Forceably redo unpaper processing. Implies option below. IGNORED
+ -u: Forceably redo unpaper processing. Implies option below.
-t: Forceably redo final trimming and cleaning. IGNORED
-b: Optimize for BeBook One.
__EOF__
pgn=$(printf '%03d' $pg)
# convert from pdf
- origpnm=$dir/pg-${pgn}.pnm
- if [[ ! $([ -e $origpnm ]) || $forcepdf ]]; then
+ origfile=$dir/pg-${pgn}.png
+ if [ ! -e $origfile ] || [[ $forcepdf ]]; then
convert $convertflags -depth $depth -density $dpi $file[$(expr $pg - 1)] \
- $origpnm || exit 1
+ $origfile || exit 1
fi;
# preprocess it!
preppnm=$dir/pg-pp-${pgn}.pnm
- if [[ ! $skipmask && ( ! $([ -e $preppnm ]) || $forcemask ) ]]; then
+ if [[ ! $skipmask ]] && ( [ ! -e $preppnm ] || [[ $forcemask ]] ); then
# create mask:
# ... downscale, blur,
- convert $convertflags -resize 10% -depth 8 -blur 10 -median 2 $origpnm $dir/pg-mask-${pgn}.pnm ||exit 1
+ convert $convertflags -resize 10% -depth 8 -blur 10 -median 2 $origfile $dir/pg-mask-${pgn}.png ||exit 1
# ... get crop co-ords. They're off by ~2 as I don't know how to
# properly correct for the border.
- cropcords=$(convert -border 1x1 -bordercolor '#000' -resize 1000% -trim -fuzz 90% -format "%wx%h%O" $dir/pg-mask-${pgn}.pnm info: || exit 1)
+ cropcords=$(convert -border 1x1 -bordercolor '#000' -resize 1000% -trim -fuzz 90% -format "%wx%h%O" $dir/pg-mask-${pgn}.png info: || exit 1)
# ... crop and despeckle? the final pre-prepared image
- convert $convertflags -crop $cropcords $origpnm $preppnm || exit 1
+ convert $convertflags -crop $cropcords $origfile $preppnm || exit 1
elif [[ $skipmask ]]; then
- cp $origpnm $preppnm
+ cp $origfile $preppnm
fi;
# check it hasn't mostly disappeared - e.g. if the scan was all black
#unpaper it
#names go a bit funny here
- #also, ignore flags starting here
- unppnm=$dir/upg-${pgn}-%01d.pnm
- unpaper $unpaperflags --layout double --overwrite --no-blackfilter -ni 10 -op 2 $preppnm $unppnm || exit 1
-
+ unppnmbase=$dir/upg-${pgn}
+ if [ ! -e ${unppnmbase}-1.pnm ] || [ ! -e ${unppnmbase}-2.pnm ] || [[ $forceunpaper ]]; then
+ unpaper $unpaperflags --layout double --overwrite -ni 10 -op 2 $preppnm ${unppnmbase}-%01d.pnm || exit 1
+ fi;
+
#detect if the page is 2-up
for subpg in $($my_seq 1 2); do
echo Processing subpg ${subpg}.
if [[ $verbose == 1 ]]; then
echo "Resplitting subpg ${subpg}."
fi
- unpaper $unpaperflags --pre-rotate 90 --layout double --overwrite --no-blackfilter -op 2 $dir/upg-${pgn}-${subpg}.pnm $dir/upg-${pgn}-${subpg}-%01d.pnm
+ unpaper $unpaperflags --pre-rotate 90 --layout double --overwrite -op 2 $dir/upg-${pgn}-${subpg}.pnm $dir/upg-${pgn}-${subpg}-%01d.pnm
else
cp $dir/upg-${pgn}-${subpg}.pnm $dir/upg-${pgn}-${subpg}-1.pnm
fi;