# YOU HAVE TO INSTALL IMAGEMAGICK ON LINUX TO RUN THIS SCRIPT. (SEE the .bat script for Windows)
# Source : https://site.sarahgarcin.com/web-frugal/#images
# USE : 
# 1- place the dither_nb.sh in a folder with your images.
# 2- Make sure the .sh is executable.
# 3- Double-click: It’s done !

# TODO : Test this script on linux. (if you have tested it and it works, let me know !)

for img in *.jpg;
	do convert "$img" -resize 400x400 -strip -quality 86 -colorspace Gray -dither FloydSteinberg -colors 4 "dither_$img";
	done