NDLI: A simple and efficient image enhancement in the compressed domain

Content Provider	IEEE Xplore Digital Library
Author	Lee, S.K. Lertrattanapanich, S.
Copyright Year	2005
Description	Author affiliation: SISA DMS Lab, Irvine, CA, USA (Lee, S.K.; Lertrattanapanich, S.)
Abstract	The objective of this paper is to develop a simple and efficient image enhancement algorithm for compressing image dynamics and enhancing image contrast in the discrete cosine transform (DCT) domain. The basic idea of this approach is to separate illumination and reflectance components of an image, so that by decreasing the contribution of the illumination the proposed algorithm effectively controls the dynamic range of the image using a contrast measure. The main advantage of the proposed algorithm is to enhance details in the dark and the bright areas with low computations without affecting the compressibility of the original image since it performs on the images in the compressed domain. In order to evaluate the proposed scheme, several base line approaches are described and compared.
File Size	136693
File Format	PDF
ISBN	0780391349
DOI	10.1109/ICIP.2005.1529902
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-14
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image enhancement Image coding Discrete cosine transforms Lighting Dynamic range Reflectivity Histograms Frequency Humans Visual system
Content Type	Text
Resource Type	Article

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A simple and efficient image enhancement in the compressed domain