Unlocking JPEG Compression: How Discrete Cosine Transform (DCT) Works 🖼️

DCT is the secret to JPEG's compression. Image Analyst Mike Pound explains how the compression works.

Colourspaces: https://youtu.be/LFXN9PiOGtY
JPEG 'files' & Colour: https://youtu.be/n_uNPbdenRs
Computer That Changed Everything (Altair 8800): https://youtu.be/6LYRgrqJgDc
Problems with JPEG: COMING SOON
Upside Down Trees (Huffman Encoding): https://youtu.be/umTbivyJoiI

Colourspaces: https://youtu.be/LFXN9PiOGtY
JPEG isn't a file format - JPEG pt1: https://youtu.be/n_uNPbdenRs
Upside Down Trees (Huffman Encoding): https://youtu.be/umTbivyJoiI
Problems with JPEG: COMING SOON!
Computer That Changed Everything (Altair 8800): https://youtu.be/6LYRgrqJgDc


http://www.facebook.com/computerphile
https://twitter.com/computer_phile

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