Remodelling colour contrast: implications for visual processing and colour representation

被引:17
|
作者
Shepherd, AJ [1 ]
机构
[1] Univ London Birkbeck Coll, Dept Psychol, London WC1E 7HX, England
关键词
colour; contrast; induction; von Kries ratios; cones;
D O I
10.1016/S0042-6989(98)00232-6
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Colour contrast describes the influence of one colour on the perception of colours in neighbouring areas. This study addresses two issues: (i) the accurate representation of the colour changes; (ii) the underlying visual mechanisms. Observers viewed a haploscopic display in which a standard display was presented to one eye and a matching display to the other. The matches could be represented accurately using a diagram that is a logarithmic transformation of the MacLeod-Boynton (r,b) (1979) chromaticity diagram. Since haploscopic presentation has been described as isolating retinal processes (Whittle, P., & Challands, P.D.C. (1969). The effect of background luminance on the brightness of flashes. Vision Research, 9, 1095-1110; Chichilnisky, E.J., & Wandell, B.A. (1995). Photoreceptor sensitivity changes explain color appearance shifts induced by large uniform backgrounds in dichoptic matching. Vision Research, 35, 239-254), the results ape discussed in terms of receptor sensitivity changes and the ratio of receptor contrasts. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1329 / 1345
页数:17
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