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Proceedings Paper

A JPEG-like algorithm for compression of single-sensor camera image
Author(s): Omar Benahmed Daho; Mohamed-Chaker Larabi; Jayanta Mukhopadhyay
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Paper Abstract

This paper presents a JPEG-like coder for image compression of single-sensor camera images using a Bayer Color Filter Array (CFA). The originality of the method is a joint scheme of compression.demosaicking in the DCT domain. In this method, the captured CFA raw data is first separated in four distinct components and then converted to YCbCr. A JPEG compression scheme is then applied. At the decoding level, the bitstream is decompressed until reaching the DCT coefficients. These latter are used for the interpolation stage. The obtained results are better than those obtained by the conventional JPEG in terms of CPSNR, ΔE2000 and SSIM. The obtained JPEG-like scheme is also less complex.

Paper Details

Date Published: 24 January 2011
PDF: 12 pages
Proc. SPIE 7876, Digital Photography VII, 787610 (24 January 2011); doi: 10.1117/12.872416
Show Author Affiliations
Omar Benahmed Daho, XLim Lab., CNRS, Univ. de Poitiers (France)
Mohamed-Chaker Larabi, XLim Lab., CNRS, Univ. de Poitiers (France)
Jayanta Mukhopadhyay, Indian Institute of Technology, Kharagpur (India)

Published in SPIE Proceedings Vol. 7876:
Digital Photography VII
Francisco H. Imai; Feng Xiao, Editor(s)

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