A comparative study of psychophysical judgment of color reproductions on mobile displays between Europeans and Asians

Kyungah Choi; Hyeon-Jeong Suk

doi:10.1117/12.2078221

8 February 2015 A comparative study of psychophysical judgment of color reproductions on mobile displays between Europeans and Asians

Kyungah Choi, Hyeon-Jeong Suk

Author Affiliations +

Proceedings Volume 9395, Color Imaging XX: Displaying, Processing, Hardcopy, and Applications; 93950T (2015) https://doi.org/10.1117/12.2078221
Event: SPIE/IS&T Electronic Imaging, 2015, San Francisco, California, United States

Abstract

The purpose of this study is to investigate the differences in the psychophysical judgment of mobile display color appearances between Europeans and Asians. A total of 50 participants, comprising 20 Europeans (9 French, 6 Swedish, 3 Norwegians, and 2 Germans) and 30 Asians (30 Koreans) participated in this experiment. A total of 18 display stimuli with different correlated color temperatures were presented, varying from 2,470 to 18,330 K. Each stimulus was viewed under 11 illuminants ranging from 2,530 to 19,760 K, while their illuminance was consistent around 500 lux. The subjects were asked to assess the optimal level of the display stimuli under different illuminants. In general, confirming the previous studies on color reproduction, we found a positive correlation in the correlated color temperatures between the illuminants and optimal displays. However, Europeans preferred a lower color temperature compared to Asians along the entire range of the illuminants. Two regression equations were derived to predict the optimal display color temperature (y) under varying illuminants (x) as follows: y = α + β*log(x), where α = -8770.37 and β = 4279.29 for European (R² = 0.95, p < .05), and α = -16076.35 and β = 6388.41 for Asian (R² = 0.85, p < .05). The findings provide the theoretical basis from which manufacturers can take a cultural-sensitive approach to enhancing their products’ appeal in the global markets.

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Kyungah Choi and Hyeon-Jeong Suk "A comparative study of psychophysical judgment of color reproductions on mobile displays between Europeans and Asians", Proc. SPIE 9395, Color Imaging XX: Displaying, Processing, Hardcopy, and Applications, 93950T (8 February 2015); https://doi.org/10.1117/12.2078221

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