A psychophysical experiment under constant stimuli is conducted on a CRT display to measure the visual suprathreshold color differences for five color centers recommended by CIE under the same five background colors. The performances of four CIELAB-based, three CIECAM02-based, and two OSA-UCS-based formulas are tested. Detailed analysis results indicate the existence of chromatic crispening effect. CIEDE2000 performs best for the gray center and gray background, whereas CAM02-LCD and CAM02-UCS have the best performance for non-neutral backgrounds. CAM02-LCD significantly outperforms all other formulas for all color centers under all background colors.
© 2014 Chinese Optics Letters
(330.0330) Vision, color, and visual optics : Vision, color, and visual optics
(330.1720) Vision, color, and visual optics : Color vision
(330.5510) Vision, color, and visual optics : Psychophysics
Vision, Color, and Visual Optics
Zhehong Wang and Haisong Xu, "Evaluation of small suprathreshold color differences under different background colors," Chin. Opt. Lett. 12, 023301- (2014)