Brightness constancy

Japanese: 明るさの恒常性 - あかるさのこうじょうせい
Brightness constancy

…A phenomenon common to many of these categories is perceptual constancy. For example, lightness (whiteness) constancy is the phenomenon in which black objects appear black and white objects appear white, regardless of the intensity of the lighting. This is because the perceptual system distinguishes surface reflectance based on the contrast between light and dark. …

*Some of the terminology that refers to "brightness constancy" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…これらのカテゴリーの多くに共通の現象として,知覚の恒常性がある。例えば明るさ(白さ)の恒常性は,照明の強さと無関係に黒い物は黒く,白い物は白く見える現象をいう。これは知覚系が明暗の対比をもとにして表面の反射率を識別しているからである。…

※「明るさの恒常性」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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