Jul 15, 2022 · Fundamentals

How the Discrete Cosine Transform Revolutionized Image and Video Compression

The article explains the origin, mathematical basis, and practical impact of the Discrete Cosine Transform (DCT), showing how this 1970s algorithm became the core of JPEG, MPEG and modern video codecs, and recounts the overlooked story of its inventors.

Discrete Cosine TransformJPEGSignal Processing

0 likes · 10 min read

How the Discrete Cosine Transform Revolutionized Image and Video Compression

IT Services Circle

Jul 12, 2022 · Fundamentals

The Discrete Cosine Transform: History, Theory, and Its Impact on Image and Video Compression

Originating from three largely unknown Indian engineers in the early 1970s, the Discrete Cosine Transform (DCT) became the cornerstone of modern image and video compression standards such as JPEG and MPEG, enabling efficient lossy compression by converting spatial data to frequency components and exploiting human visual perception.

Discrete Cosine TransformJPEGSignal Processing

0 likes · 11 min read

The Discrete Cosine Transform: History, Theory, and Its Impact on Image and Video Compression