Something

#!/bin/bash
if($1 == '')
echo "Provide source filename and output filename";
exit;
fi
if($2 == '')
echo "Provide output filename";
exit;
fi
/usr/local/dicom/bin/dcm2pnm --all-frames --write-png $1 $2;
convert $2.0.png -contrast -contrast -contrast -contrast -contrast -contrast -c
ontrast -contrast -contrast -contrast $2;
rm $2.*;