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Proceedings Paper

Image enhancement, image quality, and noise
Author(s): Zia-ur Rahman; Daniel J. Jobson; Glenn A. Woodell; Glenn D. Hines
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Paper Abstract

The Multiscale Retinex With Color Restoration (MSRCR) is a non-linear image enhancement algorithm that provides simultaneous dynamic range compression, color constancy and rendition. The overall impact is to brighten up areas of poor contrast/lightness but not at the expense of saturating areas of good contrast/brightness. The downside is that with the poor signal-to-noise ratio that most image acquisition devices have in dark regions, noise can also be greatly enhanced thus affecting overall image quality. In this paper, we will discuss the impact of the MSRCR on the overall quality of an enhanced image as a function of the strength of shadows in an image, and as a function of the root-mean-square (RMS) signal-to-noise (SNR) ratio of the image.

Paper Details

Date Published: 15 September 2005
PDF: 15 pages
Proc. SPIE 5907, Photonic Devices and Algorithms for Computing VII, 59070N (15 September 2005); doi: 10.1117/12.619460
Show Author Affiliations
Zia-ur Rahman, College of William and Mary (United States)
Daniel J. Jobson, NASA Langley Research Ctr. (United States)
Glenn A. Woodell, NASA Langley Research Ctr. (United States)
Glenn D. Hines, NASA Langley Research Ctr. (United States)


Published in SPIE Proceedings Vol. 5907:
Photonic Devices and Algorithms for Computing VII
Khan M. Iftekharuddin; Abdul A. S. Awwal, Editor(s)

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