Long Fuhui, Purves Dale
Center for Cognitive Neuroscience and Department of Neurobiology, Box 90999, Levine Science Research Center, Room B243E, Research Drive, Duke University, Durham, NC 27708, USA.
Proc Natl Acad Sci U S A. 2003 Dec 9;100(25):15190-3. doi: 10.1073/pnas.2036361100. Epub 2003 Nov 17.
The color context effects referred to as color contrast, constancy, and assimilation underscore the fact that color percepts do not correspond to the spectral characteristics of the generative stimuli. Despite a variety of proposed theories, these phenomena have resisted explanation in a single principled framework. Using a hyperspectral image database of natural scenes, we here show that color contrast, constancy, and assimilation are all predicted by the statistical organization of spectral returns from natural visual environments.
被称为颜色对比、恒常性和同化的颜色背景效应强调了这样一个事实,即颜色感知并不对应于生成刺激的光谱特征。尽管有各种提出的理论,但这些现象在单一的原则框架下仍难以得到解释。利用一个自然场景的高光谱图像数据库,我们在此表明,颜色对比、恒常性和同化都可以由自然视觉环境中光谱反射的统计结构预测出来。