This paper presents an experiment on the effect of light on the perception of paintings. The experiment was performed in a test-room where a typical museum exhibition set-up was simulated. Two different paintings were shown to 44 participants, under different light scenes obtained by using tuneable LED (Light Emitting Diode) wallwashers. To set the light scenes, the following parameters were modified: correlated colour temperature of the lighting, illuminance on the painting and the colour of the background wall. Participants answered a questionnaire to assess the perception of the paintings’ colours, the lighting conditions and the pleasantness of the exhibition set-up. The results demonstrated that illuminance is the parameter mainly affecting perception, for both paintings. However, correlated colour temperature and wall colour, as well as the combination of the three different considered parameters, can more or less influence perception depending on the chromatic composition of the painting.

中文翻译：

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光源光谱和背景颜色对绘画感知的影响

本文提出了一个关于光对绘画感知影响的实验。该实验是在模拟典型博物馆展览设置的测试室中进行的。在使用可调 LED（发光二极管）洗墙灯获得的不同灯光场景下，向 44 位参与者展示了两幅不同的画作。为了设置灯光场景，修改了以下参数：灯光的相关色温、画上的照度和背景墙的颜色。参与者回答了一份调查问卷，以评估对绘画色彩、照明条件和展览布置的愉悦程度的看法。结果表明，对于两幅画，照度是主要影响感知的参数。然而，相关的色温和墙壁颜色，