How Blurs & Filters Work - Computerphile

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by Super User, 9 years ago
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Image filters make most people thing of Instagram or Camera Phone apps, but what's really going on at pixel level? Image Analyst Dr Mike Pound explains some of the most common filters.

Secrets Hidden in Images (Steganography): https://youtu.be/TWEXCYQKyDc
JPEG 'files' & Colour: https://youtu.be/n_uNPbdenRs
The Dress: https://youtu.be/Tw0PlGpaqy4
The VR Cave: https://youtu.be/STMcWUtQr1Y
JPEG Discrete Cosine Transform (DCT): https://youtu.be/Q2aEzeMDHMA

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This video was filmed and edited by Sean Riley.

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

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