Articles

Decoding compression with reversible embedded wavelets (CREW) codestreams

[+] Author Affiliations
Martin Boliek, Michael J. Gormish, Edward L. Schwartz, Alexander Keith

Ricoh Silicon Valley, Inc., 2882 Sand Hill Road, Suite 115, Menlo Park, California?94025

J. Electron. Imaging. 7(3), 402-409 (Jul 01, 1998). doi:10.1117/1.482653
History: Received Nov. 4, 1997; Revised Feb. 4, 1998; Accepted Feb. 17, 1998
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Abstract

As the applications of digital imagery expand in resolution and pixel fidelity there is a greater need for more efficient compression and extraction of images and subimages. No longer is it sufficient to compress and decompress an image for a specific target device. The ability to handle many types of image data, extract images at different resolutions and quality, lossless and lossy, zoom and pan, and extract regions-of-interest are the new measures of image compression system performance. Compression with reversible embedded wavelets (CREW) is a high-quality image compression system that is progressive from high compression to lossless, and pyramidal in resolution. CREW supports regions-of-interest, and multiple image types, such as bi-level and continuous-tone. This paper describes the CREW system and format, shows how the correct data can be quickly extracted from a CREW file to support a variety of target devices, describes the mechanisms needed for panning, zooming, and fixed-size compression, and explains the superior performance on bi-level and graphic images. © 1998 SPIE and IS&T.

© 1998 SPIE and IS&T

Topics

Wavelets

Citation

Martin Boliek ; Michael J. Gormish ; Edward L. Schwartz and Alexander Keith
"Decoding compression with reversible embedded wavelets (CREW) codestreams", J. Electron. Imaging. 7(3), 402-409 (Jul 01, 1998). ; http://dx.doi.org/10.1117/1.482653


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