#!/bin/sh
if [ $# != 2 ] ; then
        echo "Usage: $0 <image-file> <arg2>"
        exit 1
fi
format=pgm
base=`echo $1 | sed "s/\..*$//g"`
n=$base.$format
if [ `file $1 | grep JPEG | wc -l` = 1 ]; then
        echo JPEG
        djpeg -gr -pnm $1 > $n
else
if [ `file $1 | grep GIF | wc -l` = 1 ]; then
        echo GIF
        giftopnm $1 > $n
else
if [ `file $1 | grep PGM | wc -l` = 1 ]; then
        echo PGM
        cp $1 $n 2> /dev/null
else
        echo Neither JPEG, GIF or PGM.
        mogrify -format $format $1
fi
fi
fi
make
name=`basename $1 .gif`
name=`basename $name .pgm`
rm -f $name.pgm.out
./project1 $name.pgm $2
xv $name.pgm $name.pgm.out
