How do I blur a CGImage, or UIImageView

I have a UIImageView with a .png inside it. I wa开发者_运维技巧nt to blur the image during runtime. How do I do that?

You probably want something like a Gaussian Blur which you can google for loads of information and algorithms. I also found How to implement a box or gaussian blur on iphone post for you which has some tricks for the iPhone.