Discrete Cosine Transform (Lossy Compression Data Compression)

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Time Complexity

$O(n^{2})$

Space Complexity

$O(n)$ words

(Derived: store the DCT coefficient for each input term)

Description

Approximate?

Exact

Randomized?

No, deterministic

Model of Computation

Word RAM

Year

1974

Reference

https://doi.org/10.1109%2FT-C.1974.223784