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Proceedings Paper

Embedding high dynamic range tone mapping in JPEG compression
Author(s): Jian Liu; Firas Hassan; Joan Carletta
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Paper Abstract

A method that integrates tone mapping for high dynamic range (HDR) gray-scale images with JPEG compression is proposed. The tone mapping operator (TMO) is block-based, and structured so that the same discrete cosine transform (DCT) that is used for the JPEG compression serves to complete a major part of the tone-mapping operation. Simulations have been done on high dynamic range images from the Debevec library. Experimental results show the technique successfully tone maps and compresses simultaneously; the number of bits per pixel is reduced from 32 to an average of 0.67 by the compression, with an average PSNR of 56.3 dB for the compressed tone-mapped images compared to images that have been only tone-mapped. The output of the proposed method is an image that requires only limited storage space, and can be decompressed with a standard JPEG decoder.

Paper Details

Date Published: 19 February 2013
PDF: 7 pages
Proc. SPIE 8655, Image Processing: Algorithms and Systems XI, 86550B (19 February 2013); doi: 10.1117/12.2000782
Show Author Affiliations
Jian Liu, The Univ. of Akron (United States)
Firas Hassan, Ohio Northern Univ. (United States)
Joan Carletta, The Univ. of Akron (United States)

Published in SPIE Proceedings Vol. 8655:
Image Processing: Algorithms and Systems XI
Karen O. Egiazarian; Sos S. Agaian; Atanas P. Gotchev, Editor(s)

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