I've read somewhere about fft bokeh (lens) blur. I'm trying to implement it. I'm totally new to fft and stuff.

I managed to successfully fft an image, I have an 2d array of complex numbers.. when I do a backward fft, I get the same image as before, so it works.

How can I filter it to get a bokeh effect?

**Edited by MrOMGWTF, 10 November 2012 - 07:05 AM.**