NDLI: A new error criterion for near-lossless image compression

Content Provider	IEEE Xplore Digital Library
Author	Memon, N. Moayeri, N.
Copyright Year	1997
Description	Author affiliation: Dept. of Comput. Sci., Northern Illinois Univ., DeKalb, IL, USA (Memon, N.)
Abstract	This paper presents a new criterion for near-lossless image compression and compares it with the more familiar maximum pixel error criterion in terms of compression performance and coded image subjective quality. In this new framework we compress an image in such a way that at each pixel the total error between the original and the coded images over a W/spl times/W window around the pixel does not exceed /spl epsiv/ in magnitude. The new criterion's main advantage is that it preserves image brightness and color. The compression scheme used in this work is similar to a trellis-searched scheme proposed by Ke and Marcellin (1995) in that our scheme is also a predictive, context-based scheme. However, the search for all optimal paths, representing a set of reconstruction values for an image row that satisfies the error criterion and yields the minimum bit rate, has to be done in a planar directed graph instead of a trellis. We show that this framework is also applicable to a joint image filtering and compression scenario. We present simulation results showing the performance of the new error criterion and compare it with the maximum pixel error criterion.
Starting Page	662
Ending Page	665
File Size	468508
Page Count	4
File Format	PDF
ISBN	0818681837
DOI	10.1109/ICIP.1997.632208
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-10-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image coding Pixel Image reconstruction ISO standards Computer errors Brightness Transform coding IEC standards Computer science Laboratories
Content Type	Text
Resource Type	Article

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