水彩画效果：远距离颜色同化的亮度依赖机制的定量证据。
The watercolor effect: quantitative evidence for luminance-dependent mechanisms of long-range color assimilation.
作者信息
Devinck Frédéric, Delahunt Peter B, Hardy Joseph L, Spillmann Lothar, Werner John S
机构信息
Section of Neurobiology, Physiology and Behavior, Department of Ophthalmology and Visual Science, University of California, Davis, 4860 Y Street, Suite 2400 Sacramento, CA 95817, USA.
出版信息
Vision Res. 2005 May;45(11):1413-24. doi: 10.1016/j.visres.2004.11.024.
When a dark chromatic contour delineating a figure is flanked on the inside by a brighter chromatic contour, the brighter color will spread into the entire enclosed area. This is known as the watercolor effect (WCE). Here we quantified the effect of color spreading using both color-matching and hue-cancellation tasks. Over a wide range of stimulus chromaticities, there was a reliable shift in color appearance that closely followed the direction of the inducing contour. When the contours were equated in luminance, the WCE was still present, but weak. The magnitude of the color spreading increased with increases in luminance contrast between the two contours. Additionally, as the luminance contrast between the contours increased, the chromaticity of the induced color more closely resembled that of the inside contour. The results support the hypothesis that the WCE is mediated by luminance-dependent mechanisms of long-range color assimilation.
当描绘一个图形的深色轮廓在内部被较亮的轮廓包围时，较亮的颜色会扩散到整个封闭区域。这被称为水彩画效应（WCE）。在这里，我们使用颜色匹配和色调消除任务来量化颜色扩散的效果。在广泛的刺激色度范围内，颜色外观存在可靠的变化，紧密跟随诱导轮廓的方向。当轮廓在亮度上相等时，水彩画效应仍然存在，但较弱。颜色扩散的幅度随着两个轮廓之间亮度对比度的增加而增加。此外，随着轮廓之间亮度对比度的增加，诱导颜色的色度更接近于内部轮廓的色度。结果支持了这样的假设，即水彩画效应是由依赖亮度的远距离颜色同化机制介导的。
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