#!/bin/bash
#
# Script to convert a large image into a number of small images,
# which can be viewed using Zoomify.
#
# Based on the netpgm_zoomify script by Fran Firman, ffirman@netgate.net.nz.
#
# This script depends on the netpbm package, and on cjpeg/djpeg.
# It creates a folder named for the input file, and puts the tiles and XML
# file there. It also creates an HTML file to view the picture in the
# current directory. You must copy zoomifyviewer.swf to that same directory.
# You can download zoomifyviewer.swf from the zoomify web site:
# http://www.zoomify.com/. Download the Windows package, expand the zip file,
# and you will find zoomifyviewer.swf in it.
#
input=$1
#Step 1.
#Scale the image until both the x and y dimensions are less than 257
#First convert the input file into a pnmfile
anytopnm $input >0.pnm
Xinitial=`pnmfile 0.pnm | awk -F raw, '{print $2}' | awk '{print $1}'` ;
Yinitial=`pnmfile 0.pnm | awk -F raw, '{print $2}' | awk '{print $3}'` ;
echo "Input File size = $Xinitial x $Yinitial"
inputfile=0
destfile=1
continue=1
while test $continue -eq 1; do
pnmscalefixed .5 $inputfile.pnm >$destfile.pnm
x=`pnmfile $destfile.pnm | awk -F raw, '{print $2}' | awk '{print $1}'` ;
y=`pnmfile $destfile.pnm | awk -F raw, '{print $2}' | awk '{print $3}'` ; echo $x"x"$y
if test $x -le 256 ; then
if test $y -le 256 ; then
continue=0;
fi
fi
inputfile=$destfile
let destfile=$destfile+1
done
folder=${input%.*}
mkdir -p "$folder/TileGroup0"
# move the smallest file over
cjpeg $inputfile.pnm >$folder/TileGroup0/0-0-0.jpg
rm $inputfile.pnm
let inputfile=$inputfile-1
Z=1
Tiles=1
TileGroup=0
InGroup=1
while test $inputfile -ge 0 ; do
echo "Doing $inputfile"
x=`pnmfile $inputfile.pnm | awk -F raw, '{print $2}' | awk '{print $1}'` ;
y=`pnmfile $inputfile.pnm | awk -F raw, '{print $2}' | awk '{print $3}'` ;
let cols=$x/256
let rows=$y/256
let xleft=$x-$cols*256
let yleft=$y-$rows*256
echo $cols
echo $rows
echo $xleft
echo $yleft
#Rows
Row=0
while test $Row -lt $rows ; do
#Strip out the row first to use it.
posx=0
let posy=$Row*256
pnmcut $posx $posy $x 256 $inputfile.pnm > Therow.pnm
Col=0
while test $Col -lt $cols ; do
let posx=$Col*256
let posy=$Row*256
#echo "$Row, $Col -> $posx, $posy, 256, 256"
pnmcut $posx 0 256 256 Therow.pnm | cjpeg >$folder/TileGroup$TileGroup/$Z-$Col-$Row.jpg
let Tiles=$Tiles+1
echo -n "."
let InGroup=$InGroup+1
if test $InGroup -ge 256 ; then
let TileGroup=$TileGroup+1
InGroup=0
mkdir $folder/TileGroup$TileGroup
fi
let Col=$Col+1
done
if test $xleft -gt 0 ; then
let posx=$Col*256
let posy=$Row*256
#echo "$Row, $Col -> $posx, $posy, $xleft, 256"
pnmcut $posx 0 $xleft 256 Therow.pnm | cjpeg >$folder/TileGroup$TileGroup/$Z-$Col-$Row.jpg
echo -n "."
let Tiles=$Tiles+1
let InGroup=$InGroup+1
if test $InGroup -ge 256 ; then
let TileGroup=$TileGroup+1
InGroup=0
mkdir $folder/TileGroup$TileGroup
fi
fi
let Row=$Row+1
rm Therow.pnm
echo
done
if test $yleft -gt 0 ; then
Col=0
posx=0
let posy=$Row*256
pnmcut $posx $posy $x $yleft $inputfile.pnm > Therow.pnm
while test $Col -lt $cols ; do
let posx=$Col*256
let posy=$Row*256
#echo "$Row, $Col -> $posx, $posy, 256, $yleft"
pnmcut $posx 0 256 $yleft Therow.pnm | cjpeg >$folder/TileGroup$TileGroup/$Z-$Col-$Row.jpg
echo -n "."
let Tiles=$Tiles+1
let InGroup=$InGroup+1
if test $InGroup -ge 256 ; then
let TileGroup=$TileGroup+1
InGroup=0
mkdir $folder/TileGroup$TileGroup
fi
let Col=$Col+1
done
if test $xleft -gt 0 ; then
let posx=$Col*256
let posy=$Row*256
#echo "$Row, $Col -> $posx, $posy, $xleft, $yleft"
pnmcut $posx 0 $xleft $yleft Therow.pnm | cjpeg >$folder/TileGroup$TileGroup/$Z-$Col-$Row.jpg
echo -n "."
let Tiles=$Tiles+1
let InGroup=$InGroup+1
if test $InGroup -ge 256 ; then
let TileGroup=$TileGroup+1
InGroup=0
mkdir $folder/TileGroup$TileGroup
fi
fi
rm Therow.pnm
fi
let Z=$Z+1
rm $inputfile.pnm
let inputfile=$inputfile-1
echo
done
echo "Tiles created = $Tiles"
#
# Write the XML file.
#
echo "" >$folder/ImageProperties.xml
#
# Write the HTML file.
#
echo "$folder.html
echo "\"http://www.w3.org/TR/html4/loose.dtd\">" >>$folder.html
echo "" >>$folder.html
echo " " >>$folder.html
echo " $folder" >>$folder.html
echo "" >>$folder.html
echo "