Open Access

JPEG2000 Compatible Lossless Coding of Floating-Point Data

EURASIP Journal on Image and Video Processing20072007:085385

DOI: 10.1155/2007/85385

Received: 14 August 2006

Accepted: 22 December 2006

Published: 14 February 2007

Abstract

Many scientific applications require that image data be stored in floating-point format due to the large dynamic range of the data. These applications pose a problem if the data needs to be compressed since modern image compression standards, such as JPEG2000, are only defined to operate on fixed-point or integer data. This paper proposes straightforward extensions to the JPEG2000 image compression standard which allow for the efficient coding of floating-point data. These extensions maintain desirable properties of JPEG2000, such as lossless and rate distortion optimal lossy decompression from the same coded bit stream, scalable embedded bit streams, error resilience, and implementation on low-memory hardware. Although the proposed methods can be used for both lossy and lossless compression, the discussion in this paper focuses on, and the test results are limited to, the lossless case. Test results on real image data show that the proposed lossless methods have raw compression performance that is competitive with, and sometime exceeds, current state-of-the-art methods.

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Authors’ Affiliations

(1)
Department of Electrical and Computer Engineering, University of Texas at El Paso

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Copyright

© Bryan E. Usevitch. 2007

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.