Using such a library is very functional in situations where you may need to add an effect to lots of images, need to provide an interface to the users for creating effects & so.
How to use?
After inserting the imagefx.js file into your webpage, you have 2 options:
<img src="image.jpg" imagefx="blur" />
where both are very easy to apply.
Every image effect is not available in every browser and a comprehensive browser compatibility chart can be found in the website