Unexpected colored shadows: beyond simple additive color mixtures

J.L. Nieves; J.A. García; J. Romero

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Unexpected colored shadows: beyond simple additive color mixtures

机译：意外的彩色阴影：超越简单的加色混合

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The aim of this work was to clarify the difference between two color phenomena: the shadow color, which adds color to the shadows , and the colored shadows, which appears due to the context effect on the color perception . A laboratory photograph is introduced to illustrate the colored shadow effect and how th is pe rceptual effect cannot be explained using classical colorimetry. A yellow colored shadow is observed when two separate white and blue lights illuminate a blank screen and an obstacle occludes part of the light impinging on the screen , and the Retinex Theor y is used to explain that phenomenon .

机译：这项工作的目的是弄清两种颜色现象之间的区别：阴影颜色（为阴影增加颜色）和彩色阴影（由于上下文对颜色感知的影响而出现）。引入实验室照片以说明彩色阴影效应，并且使用经典的比色法无法解释感官效应如何。当两个单独的白光和蓝光分别照亮空白屏幕并且障碍物遮挡了一部分入射在屏幕上的光时，观察到黄色阴影，Retinex理论用于解释该现象。

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《Optica pura y aplicada》 |2015年第2期|共6页
作者
J.L. Nieves; J.A. García; J. Romero;
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中图分类光学;
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Unexpected colored shadows: beyond simple additive color mixtures

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