Color constancy: the role of image surfaces in illuminant adjustment
Color constancy: the role of image surfaces in illuminant adjustment
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DOI：
10.1364/josaa.16.001521
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发表时间：
1999-07
影响因子：
1.9
通讯作者：
K. Bäuml
中科院分区：
文献类型：
--
作者：
K. Bäuml
先前关于颜色恒常性的研究已经发现，测试表面的颜色外观既作为图像中的照明的函数又作为图像表面的函数而变化。在多大程度上这两种影响相互作用的研究在这里。为了从理论上解决这个问题，制定了一个限制性的冯·克里斯模型，该模型假设响应于光源变化的视锥信号的缩放不依赖于图像表面。受试者看到CRT模拟的照明表面，并为一些不同的光源和表面集合，调整测试灯，使其出现消色差，并有一定的亮度。与以前的研究一致，设置显示了高度的光源调整，也显示了对图像中表面的调整。拟议的冯·克里斯模型提供了一个很好的，虽然不是完美的，数据的描述，从而表明，在不同的表面收集的照明调整基本相同。这些结果与以前的几项研究表明，图像表面在我们的视觉系统的光源调节中只起很小的作用。
Previous studies on color constancy have found that the color appearance of a test surface varies both as a function of the illumination in the image and as a function of the image surfaces. To what extent these two effects interact is investigated here. To address this issue theoretically, a restrictive von Kries model is formulated that assumes that the scaling of the cone signals in response to an illuminant change does not depend on image surfaces. Subjects saw CRT simulations of illuminated surfaces and, for a number of different illuminants and surface collections, adjusted a test light so that it appeared achromatic and had a certain brightness. Consistent with previous studies, the settings showed a high degree of illuminant adjustment and also showed an adjustment to the surfaces in the image. The proposed von Kries model provided a good, although not perfect, description of the data, thus indicating that the illuminant adjustment was largely the same under the different surface collections. These results together with those from several previous studies suggest that image surfaces play only a minor role in the illuminant adjustment of our visual system.