#!/usr/bin/env zsh

set -e
djxl --quiet $1 $1.ppm || {
    djxl --quiet $1 $1.pgm
    mv $1.pgm $1.ppm
}
[[ -r ${1}-ec0.ppm ]] || return 0
mv ${1}-ec0.ppm $1.ppm
rm ${1}-ec1.pgm