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__
}
## Setup and utilities ##
-# Mac OS X doesn't have seq. It has jot instead.
-Linux_seq="seq"
-Darwin_seq="jot -"
-if [[ $(uname) == "Darwin" ]]; then my_seq=$Darwin_seq;
-else my_seq=$Linux_seq;
-fi;
-
+source $(dirname $0)/my_seq.sh
## Process flags ##
forcepdf=
# convert from pdf
origpnm=$dir/pg-${pgn}.pnm
- if [[ ! $([ -e $origpnm ]) || $forcepdf ]]; then
+ if [ ! -e $origpnm ] || [[ $forcepdf ]]; then
convert $convertflags -depth $depth -density $dpi $file[$(expr $pg - 1)] \
$origpnm || exit 1
fi;
# preprocess it!
preppnm=$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
# check it hasn't mostly disappeared - e.g. if the scan was all black
# (e.g. forgot to put the book down when you first hit scan)
- # ... not sure why such a convoluted form is required. expr doesn't like
- # processing a convert -format "%w * %h" or any variant thereof
if [[ $(convert $preppnm -format '%[fx:s.w*s.h>1000]' info:) = "0" ]]; then
[[ $verbose == 1 ]] && echo "Discarding pg ${pgn}: not enough remains after masking."
continue;
#unpaper it
#names go a bit funny here
- #also, ignore flags starting here
- unppnm=$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 --no-blackfilter -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}.