Embedding high dynamic range tone mapping in JPEG compression

Jian Liu; Firas Hassan; Joan Carletta

doi:10.1117/12.2000782

19 February 2013 Embedding high dynamic range tone mapping in JPEG compression

Jian Liu, Firas Hassan, Joan Carletta

Proceedings Volume 8655, Image Processing: Algorithms and Systems XI; 86550B (2013) https://doi.org/10.1117/12.2000782
Event: IS&T/SPIE Electronic Imaging, 2013, Burlingame, California, United States

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.

Citation Download Citation

Jian Liu, Firas Hassan, and Joan Carletta "Embedding high dynamic range tone mapping in JPEG compression", Proc. SPIE 8655, Image Processing: Algorithms and Systems XI, 86550B (19 February 2013); https://doi.org/10.1117/12.2000782

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