#!/bin/sh

rm -f book.djvu

first=0

for file in $( ls *.jpg | sort -n ); do    
 convert -enhance $file page.pbm
 cjb2 page.pbm page.djvu
 if [ $first = "0" ]; then
   echo Make start page $file
   cp page.djvu book.djvu
   first=1
 else  
   echo Add page $file to book.djvu
   djvm -i book.djvu page.djvu
 fi
 rm -f page.djvu page.pbm 
done