Download this awesomeness from Github.
Download latestFiltrr2 depends on jQuery so be sure to add it before. Then add the script to your document.
<script type="text/javascript" src="filtrr2.js"></script>
Prettify your images.
Filtrr2("#my-img", function() {
this.brighten(40)
.saturate(50)
.render();
});
Launch your product, then drop me a line to let me know how it worked for you.
The Github README file contains most of what you'll need.