Secrets Hidden in Images (Steganography) - Computerphile

by Super User, 7 years ago
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Secret texts buried in a picture of your dog? Image Analyst Dr. Mike Pound explains the art of steganography in digital images.

The Problem with JPEG:
The Bayer Filter:
Super Computer & the Milky Way:
JPEG Discrete Cosine Transform (DCT):

This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham:

Computerphile is a sister project to Brady Haran's Numberphile. More at