with HTML5 canvas, images can be manipulated into grayscale without having to use image editing software. I've put together a demo to show you how to use HTML5 & jQuery to dynamically clone color images into grayscale (see demo). Credits: thanks to Darcy Clarke (my Themify's partner) for the jQuery and Javascript code.
A HTML DOM parser written in PHP5+ let you manipulate HTML in a very easy way!
Require PHP 5+.
Supports invalid HTML.
Find tags on an HTML page with selectors just like jQuery.
Extract contents from HTML in a single line.