Lossy compression of floating point high-dynamic range images using JPEG2000

Dominic Springer; Andre Kaup

doi:10.1117/12.805315

19 January 2009 Lossy compression of floating point high-dynamic range images using JPEG2000

Dominic Springer, Andre Kaup

Proceedings Volume 7257, Visual Communications and Image Processing 2009; 72570X (2009) https://doi.org/10.1117/12.805315
Event: IS&T/SPIE Electronic Imaging, 2009, San Jose, California, United States

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.

Citation Download Citation

Dominic Springer and Andre Kaup "Lossy compression of floating point high-dynamic range images using JPEG2000", Proc. SPIE 7257, Visual Communications and Image Processing 2009, 72570X (19 January 2009); https://doi.org/10.1117/12.805315

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