NDLI: Improvement of JPEG compression efficiency using information hiding and image restoration

Content Provider	IEEE Xplore Digital Library
Author	Yamawaki, K. Nakano, F. Noda, H. Niimi, M.
Copyright Year	2012
Description	Author affiliation: Department of Systems Design and Informatics, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka, 820-8502 Japan (Yamawaki, K.; Nakano, F.; Noda, H.; Niimi, M.)
Abstract	An application of information hiding to image compression is investigated to improve compression efficiency for JPEG color images, where entropy coded DCT coefficients of chrominance components are embedded into DCT coefficients of luminance component. In the proposed method, a color image is changed to a JPEG gray image with only luminance component. A color image can be recovered from the gray image by extracting chrominance components. To recover an image from degradation caused by compression and embedding, an image restoration method based on the MAP estimation is also applied. Experimental results show that information hiding improves compression efficiency slightly, image restoration improves it more than information hiding, and the use of both information hiding and image restoration is most effective to improve compression efficiency.
Starting Page	436
Ending Page	440
File Size	572712
Page Count	5
File Format	PDF
ISBN	9781467350839
e-ISBN	9781467350822
e-ISBN	9781467350815
DOI	10.1109/ISPACS.2012.6473529
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-04
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transform coding Discrete cosine transforms Image coding Color Image restoration Quantization Estimation JPEG color image information hiding image compression image restoration
Content Type	Text
Resource Type	Article

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