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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 36, Iss. 24 — Dec. 15, 2011
  • pp: 4821–4823

Color constancy enhancement under poor illumination

Jun Liu, Zhenfeng Shao, and Qimin Cheng  »View Author Affiliations


Optics Letters, Vol. 36, Issue 24, pp. 4821-4823 (2011)
http://dx.doi.org/10.1364/OL.36.004821


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Abstract

In this Letter, the color constancy and its realization were studied and a novel color constancy image enhancement algorithm under poor illumination was presented. The purpose of this algorithm is to maintain the hue of an image during the processing so that the change of saturation can be minimized. The original image was first multiplied by a scale parameter obtained by the adaptive quadratic function to enhance the luminance, and then the edge details were restored by a shifting parameter. Numerical results of the Simon Fraser University (SFU) image database indicated that the proposed algorithm performed much better in preserving the hue and saturation and avoiding color distortion compared with the existing image enhancement algorithms.

© 2011 Optical Society of America

OCIS Codes
(100.0100) Image processing : Image processing
(100.2980) Image processing : Image enhancement
(330.1710) Vision, color, and visual optics : Color, measurement
(330.3790) Vision, color, and visual optics : Low vision
(100.3008) Image processing : Image recognition, algorithms and filters

ToC Category:
Image Processing

History
Original Manuscript: August 5, 2011
Revised Manuscript: November 14, 2011
Manuscript Accepted: November 14, 2011
Published: December 15, 2011

Virtual Issues
Vol. 7, Iss. 2 Virtual Journal for Biomedical Optics

Citation
Jun Liu, Zhenfeng Shao, and Qimin Cheng, "Color constancy enhancement under poor illumination," Opt. Lett. 36, 4821-4823 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-24-4821


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