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Optical Engineering

Fast algorithm for discrete cosine transform (DCT)-domain image downsampling using Winograd DCTs
Author(s): Donyeon Kim; Yoonsik Choe
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Paper Abstract

A fast algorithm for discrete cosine transform (DCT)-domain image resizing is presented. To reduce computations, fast Winograd DCTs are applied to a recently reported image resizing scheme that uses DCT low-pass truncated approximation. Our fast algorithm yields significant improvement in computational complexity over the fast algorithm of the reported method.

Paper Details

Date Published: 1 September 2003
PDF: 2 pages
Opt. Eng. 42(9) doi: 10.1117/1.1599842
Published in: Optical Engineering Volume 42, Issue 9
Show Author Affiliations
Donyeon Kim, Yonsei Univ. (South Korea)
Yoonsik Choe, Yonsei Univ. (South Korea)

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