Brightness contrast under high surround luminance levels: psychophysical data vs CIECAM02

Ye Seul Baek; Ari Kim; Hong-suk Kim; Seung-ok Park

doi:10.1117/12.872590

25 January 2011 Brightness contrast under high surround luminance levels: psychophysical data vs CIECAM02

Ye Seul Baek, Ari Kim, Hong-suk Kim, Seung-ok Park

Proceedings Volume 7866, Color Imaging XVI: Displaying, Processing, Hardcopy, and Applications; 78660X (2011) https://doi.org/10.1117/12.872590
Event: IS&T/SPIE Electronic Imaging, 2011, San Francisco Airport, California, United States

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.

Citation Download Citation

Ye Seul Baek, Ari Kim, Hong-suk Kim, and Seung-ok Park "Brightness contrast under high surround luminance levels: psychophysical data vs CIECAM02", Proc. SPIE 7866, Color Imaging XVI: Displaying, Processing, Hardcopy, and Applications, 78660X (25 January 2011); https://doi.org/10.1117/12.872590

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