COLOR CONSTANCY INFLUENCED BY CONTRAST ADAPTATION
COLOR CONSTANCY INFLUENCED BY CONTRAST ADAPTATION
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DOI：
10.1038/373694a0
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发表时间：
1995-02-23
期刊：
影响因子：
64.8
通讯作者：
MOLLON, JD
中科院分区：
文献类型：
--
作者：
WEBSTER, MA;MOLLON, JD
视觉灵敏度至少由两种不同类型的适应控制：光适应调整对刺激中平均亮度和颜色的灵敏度（1），对比度适应调整对亮度和颜色变化的灵敏度（2-5）。光适应被认为是重要的，在保持物体的感知颜色，尽管在照明变化（“颜色恒定性”），补偿的平均变化，从场景中反射的光在不同的光源（6）。但对于自然主义的颜色信号，我们在这里表明，光源的变化也可以改变图像中的颜色对比度（颜色如何分布在平均值周围），足以改变对比度适应的状态。因此，在不同光源下感知的颜色也可能受到对比度适应的显著影响。
VISUAL sensitivity is controlled by at least two distinct types of adaptation: light adaptation adjusts sensitivity to the mean luminance and colour in the stimulus(1), and contrast adaptation adjusts sensitivity to the variations in luminance and colour(2-5). Light adaptation is thought to be important in maintaining the perceived colour of objects despite changes in illumination ('colour constancy'), compensating for the mean changes in the light reflected from scenes under different illuminants(6). But for naturalistic colour signals, we show here that changes in an illuminant can also alter colour contrasts in images (how colours are distributed around the mean) enough to alter the state of contrast adaptation. Thus perceived colour under different illuminants may also be noticeably influenced by contrast adaptation.