Chromatic adaptation in hard copy/soft copy comparisons
Chromatic adaptation in hard copy/soft copy comparisons
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DOI：
10.1117/12.146279
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发表时间：
1993-06
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影响因子：
--
通讯作者：
M. Fairchild
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文献类型：
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作者：
M. Fairchild
人类的视觉系统已经进化出一套复杂的机制，可以在光照变化的情况下对物体颜色产生稳定的感知。这种现象通常被称为色度适应或颜色恒定。当观看场景或硬拷贝复制品时，通常假设人们几乎完全适应主流光源的颜色和亮度。当观看软拷贝图像显示时，情况可能并非如此。对硬拷贝和软拷贝显示的颜色适应程度的差异指向两种类型的颜色适应机制：感觉机制和认知机制。感觉机制是那些对刺激做出自动反应的机制，如视网膜增益控制。认知机制是那些依赖于观察者对场景内容的知识的机制。回顾了一系列测量颜色适应机制的空间、时间和颜色特性的实验，简要描述了预测这些颜色适应效应的数学模型，并基于心理物理实验，就如何在典型的跨媒体颜色再现情况下解决这些问题提出了一些实用建议。
The human visual system has evolved with a sophisticated set of mechanisms to produce stable perceptions of object colors across changes in illumination. This phenomenon is typically referred to as chromatic adaptation or color constancy. When viewing scenes or hard-copy reproductions, it is generally assumed that one adapts almost completely to the color and luminance of the prevailing light source. This is likely not the case when soft-copy image displays are viewed. Differences in the degree of chromatic adaptation to hard-copy and soft- copy displays point to two types of chromatic-adaptation mechanisms: sensory and cognitive. Sensory mechanisms are those that act automatically in response to the stimulus, such as retinal gain control. Cognitive mechanisms are those that rely on observers' knowledge of scene content. A series of experiments that measured the spatial, temporal, and chromatic properties of chromatic-adaptation mechanisms are reviewed and a mathematical model for predicting these chromatic adaptation effects is briefly described along with some practical recommendations, based on psychophysical experiments, on how to approach these problems in typical cross-media color reproduction situations.