Author： Choi Seo Young Park Du Sik Kim Chang Yeong Schanda Janos Csuti Peter Kranicz Balazs
Publisher： Society for Imaging Science and Technology
ISSN： 2166-9635
Source： Color and Imaging Conference, Vol.2012, Iss.1, 2012-01, pp. : 309-312
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
The present study introduces interesting disagreement phenomena between luminance and brightness in near white colors reproduced using LEDs. Target stimuli having identical luminance and chrominance (CCT) appeared to have different brightness. Observers tended to choose brighter one from the two target stimuli in contrary fashion. The relative quantities of the ipRGC (intrinsically photosensitive retinal ganglion cells), S-cones, and rods were compared over the stimuli besides the luminance, i.e., photometric quantity. An apparent reason for the discrepancy could not be revealed in this study; however it could be induced that the contribution of S-cone, rod, and ipRGC (circadian) photosensitive receptors as well as L- and M-cones to the brightness perception causes the discrepancy results.
Related content
Adaptive and Affective Luminance Contrast on Optimal Brightness of Displays
Color and Imaging Conference, Vol. 2014, Iss. 2014, 2014-11 ,pp. :
Access to resources
Recommend
Modeling Luminance Perception at Absolute Threshold
COMPUTER GRAPHICS FORUM (ELECTRONIC), Vol. 34, Iss. 4, 2015-07 ,pp. :