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錯視の科学館 展示 No. 15 |
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井桁錯視 |
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Sharp Illusion |
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2010年10月13日 新井仁之・新井しのぶ |
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Fig. 1: Sharp illusion ©Hitoshi Arai and Shinobu Arai 2010 |
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白い四角形の周辺が「井」の字に光ったように見えます.しかしそれは目の錯覚で,「井」の字に光った部分はありません.実際,上の図の一部を輝度のグラフで表すと次のようになってます. |
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We can see a brighter figure like the symbol # in each white area. But
such brighter parts do not exist. In fact the graph of a part of the above
figure is indicated by Fig.2. This figure is an application of the Mach
band effect: an interesting point of the sharp illusion is the protrusion
of brighter lines. |
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Fig.2: Graph of luminance of a part of the above figure |
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この図はマッハの帯の錯視の応用例で,四角の縁をはみ出て光って見える線が特徴的. |
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錯視の科学館の外部からアクセスしている方は,次をクリックしてください.錯視の科学館入口です |
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