Title :
A Lossless-by-Lossy Approach to Lossless Image Compression
Author :
Shinoda, Kazuma ; Kikuchi, Hiroaki ; Muramatsu, Shigeki
Author_Institution :
Dept. of Electr. & Electron. Eng., Niigata Univ., Japan
Abstract :
This paper proposes a method of lossless image coding by the aid of lossy image coding. It aims at an improvement in the compression efficiency. We apply a kind of embedded coding to large coefficients in magnitude in a wavelet transform domain. The other wavelet coefficients are encoded by a context-based entropy coding. The result slightly outperforms the compression efficiency in JPEG-LS.
Keywords :
approximation theory; data compression; entropy codes; image coding; wavelet transforms; JPEG-LS; context-based entropy coding; embedded coding; image coding; lossless image compression; lossless-by-lossy approach; wavelet transform domain; Bit rate; Computational complexity; Entropy coding; Image coding; Performance loss; Predictive coding; Predictive models; Wavelet coefficients; Wavelet domain; Wavelet transforms; Image coding; wavelet transforms;
Conference_Titel :
Image Processing, 2006 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
1-4244-0480-0
DOI :
10.1109/ICIP.2006.312814
