Testing jpegtran (libjpeg-turbo) vs. mozjpeg compression abilities on a set of source JPEGs.

run.sh

#!/bin/bash

rm turbo/*
rm mozjpeg/*
cd orig/

echo libjpeg-turbo
find . -name "*.jpg" -exec jpegtran -optimize -copy none -outfile "{}.tmp" "{}" \; -exec mv "{}.tmp" "../turbo/{}" \;
echo Done

echo libmozjpeg
find . -name "*.jpg" -exec /opt/libmozjpeg/bin/jpegtran -optimize -copy none -outfile "{}.tmp" "{}" \; -exec mv "{}.tmp" "../mozjpeg/{}" \;
echo Done

cd ../
echo
du -B1 orig/
du -B1 turbo/
du -B1 mozjpeg/