JPEG DCT, Discrete Cosine Transform (JPEG Pt2)- Computerphile

Name: JPEG DCT, Discrete Cosine Transform (JPEG Pt2)- Computerphile
Uploaded: 2015-05-22T00:00:00.000Z
Duration: 15 min 11 s
Description: JPEG compresses by converting each 8×8 pixel block into 64 cosine-wave weights with the DCT, then quantizing away the small high-frequency weights so only a few low-frequency coefficients need to be stored.

Computerphile · 15:11 · Watch on YouTube

JPEG compresses by converting each 8×8 pixel block into 64 cosine-wave weights with the DCT, then quantizing away the small high-frequency weights so only a few low-frequency coefficients need to be stored.

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