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Date: Mon, 03 Nov 2008 20:59:03 +0200
To: "ALT Linux Community general discussions" <community@lists.altlinux.org>
From: "Aleksander Gorohovski" <angel@feht.dgtu.donetsk.ua>
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Subject: Re: [Comm] djvu
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On Mon, 03 Nov 2008 20:26:26 +0200, Alexey Borisenkov  
<grizlik78@gmail.com> wrote:

> Ivan Petrov пишет:
>> А чем делают сабж в Альте?
>> Я посмотрел в /usr/bin утилиты - все или просмотр или преобразование.
>> А чем колдируют в этот формат?
>
> cjb2, c44, djvm и ещё множество утилит из набора djvu-utils
> man djvu
> возможно есть что-то графическое, но мне и этих вполне хватает.

Я пользуюсь скриптом


#!/bin/bash
#
# any2djvu-bw
#

if [ -z `which anytopnm` -o -z `which ppmtopgm` -o -z `which pgmtopbm` -o  
-z `which cjb2` ]; then
usage
echo "Error: anytopnm, ppmtopgm, pgmtopbm and cjb2 are needed"
echo
exit 1
fi

shopt -s extglob

DEFMASK="*.jpg"
#DEFMASK="*.png"
DPI=300
# uncomment the following line to compile a bundled DjVu document
OUTFILE="#0-bw.djvu"

function usage() {
echo
echo "usage:"
echo
echo "$0 [\"REGEXP\"]"
echo " converts single pages with the default mask $DEFMASK (or REGEXP if  
provided)"
echo " in the current directory to single-page black and white djvu  
documents"
# uncomment the following line to compile a bundled DjVu document
echo " and bundles them as a djvu file $OUTFILE"
echo
}

if [ -n "$1" ]; then
MASK=$1
else
MASK=$DEFMASK
fi

for i in $MASK; do
if [ ! -e $i ]; then
usage
echo "Error: current directory must contain files with the mask $MASK"
echo
exit 1
fi
if [ ! -e $i.djvu ]; then
echo "$i"
anytopnm $i | ppmtopgm | pgmtopbm -value 0.499 > $i.pbm
# in netpbm >= 10.23 the above line can be replaced with the following:
# anytopnm $i | ppmtopgm | pamditherbw -value 0.499 > $.pbm
cjb2 -dpi $DPI $i.pbm $i.djvu
rm -f $i.pbm
fi
done

# uncomment the following line to compile a bundled DjVu document
djvm -c $OUTFILE $MASK.djvu