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Image Enhancement, Image Quality, and NoiseThe 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.
Document ID
20070020201
Acquisition Source
Langley Research Center
Document Type
Conference Paper
External Source(s)
Authors
Rahman, Zia-ur
(College of William and Mary Williamsburg, VA, United States)
Jobson, Daniel J.
(NASA Langley Research Center Hampton, VA, United States)
Woodell, Glenn A.
(NASA Langley Research Center Hampton, VA, United States)
Hines, Glenn D.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 23, 2013
Publication Date
August 30, 2005
Publication Information
Publication: Proceedings of SPIE
Volume: 5907
ISBN: 9.78E+12
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: Photonic Devices an Algorithms for Computing VII
Location: San Diego, CA
Country: United States
Start Date: August 1, 2005
End Date: August 2, 2005
Sponsors: International Society for Optical Engineering
Funding Number(s)
CONTRACT_GRANT: NNL04AA02A
Distribution Limits
Public
Copyright
Other

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