24 January 2011 A JPEG-like algorithm for compression of single-sensor camera image
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Proceedings Volume 7876, Digital Photography VII; 787610 (2011) https://doi.org/10.1117/12.872416
Event: IS&T/SPIE Electronic Imaging, 2011, San Francisco Airport, California, United States
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.
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Omar Benahmed Daho, Omar Benahmed Daho, Mohamed-Chaker Larabi, Mohamed-Chaker Larabi, Jayanta Mukhopadhyay, Jayanta Mukhopadhyay, "A JPEG-like algorithm for compression of single-sensor camera image", Proc. SPIE 7876, Digital Photography VII, 787610 (24 January 2011); doi: 10.1117/12.872416; https://doi.org/10.1117/12.872416
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