Blackwell K T, Buchsbaum G
Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia.
J Opt Soc Am A. 1988 Oct;5(10):1772-80. doi: 10.1364/josaa.5.001772.
In order to study color constancy, the color appearance of the center of a center-surround paradigm was measured by using multiple-alternative forced-response matching. The center was presented with (1) no surround, (2) an adjacent chromatic surround, or (3) a chromatic surround separated from the center by an achromatic gap. The center and the surrounds were presented under various simulated illuminants ranging from illuminant A to illuminant D75. We found that when no surround is present, color constancy fails; however, when surrounds are present, some degree of color constancy is displayed. We also found that color constancy is poor when chromatic induction is minimal. In addition, it was determined that, if the ratios of R, G, and B of the center to R, G, and B of the surround remain constant as the illuminant changes, color constancy results. (R, G, and B correspond to the outputs of the retinal color mechanisms).
为了研究颜色恒常性，采用多选项强制反应匹配法测量中心-周边范式中心区域的颜色外观。中心区域呈现为：(1) 无周边区域；(2) 相邻的彩色周边区域；或(3) 通过无彩色间隙与中心区域隔开的彩色周边区域。中心区域和周边区域在从A光源到D75光源的各种模拟光源下呈现。我们发现，当不存在周边区域时，颜色恒常性失效；然而，当存在周边区域时，会表现出一定程度的颜色恒常性。我们还发现，当颜色诱导最小时，颜色恒常性较差。此外，已确定，如果随着光源变化，中心区域的R、G、B与周边区域的R、G、B的比例保持恒定，则会产生颜色恒常性。(R、G、B对应视网膜颜色机制的输出)
