NDLI: An algorithm for enhancing hue invariability in color images

Content Provider	IEEE Xplore Digital Library
Author	Liu, Caixia Zhang, Wei Yang, Bin Yan, Xiaofei
Copyright Year	2015
Description	Author affiliation: Department of Information Science and Technology, Zaozhuang University, Zaozhuang, China (Liu, Caixia; Zhang, Wei; Yang, Bin; Yan, Xiaofei)
Abstract	Image enhancement is a key technology in digital image processing. In this paper, a novel algorithm based on Laplacian pyramid transformation is proposed for enhancing hue invariability of color images. On the premise of hue invariability, the N-level Laplacian pyramid transform on saturation component of HIS space is performed to improve the saturation. Contrast limited adaptive histogram equalization algorithm is used to enhance details of intensity component. The bilinear median — Gaussian filter is used to deal with the images with all kinds of noise. Experiments show that the details of image can be reserved as much as possible at the time of denoising. Combined with hue invariability enhancement algorithm based on Laplacian pyramid transformation, a good denoising and enhancement effect is obtained and it is helpful to the further image understanding and analysis.
Starting Page	240
Ending Page	245
File Size	2775220
Page Count	6
File Format	PDF
e-ISBN	9781467390989
DOI	10.1109/CISP.2015.7407883
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-10-14
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Histograms Laplace equations Laplacian pyramid Image color analysis image enhancement Image edge detection Brightness Color Filtering algorithms color image bilateral filter
Content Type	Text
Resource Type	Article

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