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Proceedings Paper

Lossy compression of floating point high-dynamic range images using JPEG2000
Author(s): Dominic Springer; Andre Kaup
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Paper Abstract

In recent years, a new technique called High Dynamic Range (HDR) has gained attention in the image processing field. By representing pixel values with floating point numbers, recorded images can hold significantly more luminance information than ordinary integer images. This paper focuses on the realization of a lossy compression scheme for HDR images. The JPEG2000 standard is used as a basic component and is efficiently integrated into the compression chain. Based on a detailed analysis of the floating point format and the human visual system, a concept for lossy compression is worked out and thoroughly optimized. Our scheme outperforms all other existing lossy HDR compression schemes and shows superior performance both at low and high bitrates.

Paper Details

Date Published: 19 January 2009
PDF: 11 pages
Proc. SPIE 7257, Visual Communications and Image Processing 2009, 72570X (19 January 2009); doi: 10.1117/12.805315
Show Author Affiliations
Dominic Springer, Fraunhofer Institute for Integrated Circuits (Germany)
Andre Kaup, Univ. Erlangen-Nuremberg (Germany)

Published in SPIE Proceedings Vol. 7257:
Visual Communications and Image Processing 2009
Majid Rabbani; Robert L. Stevenson, Editor(s)

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