Reversible Implementations of Irreversible Component Transforms and Their Comparisons in Image Compression

Junghyeun HWANG  Hisakazu KIKUCHI  Shogo MURAMATSU  Kazuma SHINODA  Jaeho SHIN  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E95-A   No.4   pp.824-828
Publication Date: 2012/04/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E95.A.824
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Digital Signal Processing
component transform,  reversible transform,  image compression,  LU factorization,  

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Reversible color component transforms derived by the LU factorization are briefly described. It is possible to obtain an reversible implementation to a given component transform, even if the original transform is irreversible. Some examples are presented and their performances are compared in image compression.