simultaneous or spatial contrast

Japanese: simultaneous or spatial contrast(英語表記)simultaneousorspatialcontrast
simultaneous or spatial contrast

…For example, the perceived brightness of a small piece of gray-white paper of a certain brightness appears brighter (whiter) when it is placed on a larger piece of black paper, and darker when placed on a whiter piece of paper. This phenomenon is called simultaneous or spatial contrast. When a large piece of gray-white paper is placed on top of a large piece of black paper, the part that is in contact with the black paper appears whiter than the central part, and when it is in contact with the white paper, it appears blacker. …

*Some of the terminology that mentions "simultaneous or spatial contrast" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…例えば一定の明るさの灰白色の小さい紙面の感覚的明るさは,その紙を黒い大きな紙の上に置くときより明るく(白く)見えるし,もっと白い紙の上に置くときは暗く見える。この現象を同時または空間対比simultaneous or spatial contrastという。灰白色の紙が大きいときは,黒い紙と接する部分が中央の部分よりより白く見えるし,また白い紙と接する場合はより黒く見える。…

※「simultaneous or spatial contrast」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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