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Proceedings Paper

Brightness contrast under high surround luminance levels: psychophysical data vs CIECAM02
Author(s): Ye Seul Baek; Ari Kim; Hong-suk Kim; Seung-ok Park
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Paper Abstract

The purpose of this study can be divided into two descriptions. First, we investigated perceived brightness contrast to varied surround luminance levels from dark to over-bright conditions by measuring psychophysical data using magnitude estimation. As a result, the perceived brightness contrast increases until surround changes from dark to average, it decreases from average to over-bright. Second, so obtained experimental results are compared with brightness contrast estimates of CIECAM028 and MobileCAM9 and we refined a surround factor c and brightness correlate Q of CIECAM02. Consequently, the refined results appear matched to brightness contrast. A Pearson correlation between the refined CIECAM02 prediction and the visual results was 0.95.

Paper Details

Date Published: 25 January 2011
PDF: 6 pages
Proc. SPIE 7866, Color Imaging XVI: Displaying, Processing, Hardcopy, and Applications, 78660X (25 January 2011); doi: 10.1117/12.872590
Show Author Affiliations
Ye Seul Baek, Daejin Univ. (Korea, Republic of)
Ari Kim, Daejin Univ. (Korea, Republic of)
Hong-suk Kim, Daejin Univ. (Korea, Republic of)
Seung-ok Park, Daejin Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 7866:
Color Imaging XVI: Displaying, Processing, Hardcopy, and Applications
Reiner Eschbach; Gabriel G. Marcu; Alessandro Rizzi, Editor(s)

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