Split One Image into Multiple Images in PHP

http://www.freeopenbook.com/php-hacks/phphks-CHP-4-SECT-5.html ...

Desaturate Images With PHP

http://www.hashbangcode.com/blog/desaturate-images-php-593.html ...

ImageOptim – a PNG/JPEG/GIF optimizer for Mac OS X

http://imageoptim.pornel.net/ ...