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Proceedings Paper

A color image database for realistic image rendition
Author(s): Man-jun Xiao; Si-ying Chen; Guo-qiang Ni; Yan Wen
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Paper Abstract

A color image database of different scenes under several fixed illuminants is constructed in this paper. It contains images for 45 scenes captured under illumination of various color, lightness. Some analysis based on the database are described to find the relationship between chromatic/lightness distribution of images under different illumination. Indexes as overall mean and SD are introduced, which are reasonable to evaluate image lightness and contrast coordinating to visually representation. In order to objectively assess the influence of illuminant color to images, investigation on lαβand r-g chromatic map are explored. An improved hue correlation method is proposed based on , α βmean/SD statistical analysis, which shows excellent color constancy performance on CPVO measurement. The CPVO measurement is also established on r-g chromatic peak offset tests in this paper.

Paper Details

Date Published: 28 January 2009
PDF: 11 pages
Proc. SPIE 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, 715638 (28 January 2009); doi: 10.1117/12.811968
Show Author Affiliations
Man-jun Xiao, Beijing Institute of Technology (China)
Si-ying Chen, Beijing Institute of Technology (China)
Guo-qiang Ni, Beijing Institute of Technology (China)
Yan Wen, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 7156:
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments
Yunlong Sheng; Yongtian Wang; Lijiang Zeng, Editor(s)

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