How do image processing apps and realtime applications apply effects so quickly? Dr Mike Pound decides to blur his Christmas Tree...

Mike's code: http://GitHub.com/mikepound/convolve

EXTRA BITS:    • EXTRA BITS: More on Separable Convolu...  

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This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: https://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com