2色法によるイチゴの錯視。この画像はすべてシアン色(青緑色)の画素でできているが、イチゴは赤く見える。 Strawberries appear to be reddish, though the pixels are not.pic.twitter.com/Ginyhf61F7
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I am an experimental psychologist who studies visual illusions as well as makes illusion artworks. #illusion #opticalillusion #perception #錯視
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2色法によるイチゴの錯視。この画像はすべてシアン色(青緑色)の画素でできているが、イチゴは赤く見える。 Strawberries appear to be reddish, though the pixels are not.pic.twitter.com/Ginyhf61F7
. @AkiyoshiKitaoka @tumemoto 既にコメントにもたくさん書かれていますが、半分くらいの明るさまで赤が入っています。赤を全部なくすと2枚めの画像。pic.twitter.com/EBLaspQmcW
ぼちぼちとRTされて100RTまで行った。この画像で妙なのは、青と緑のヒストグラムがほぼぴったり同じなこと。白黒画像をシアンにしてから暗い赤を足したんだろうか?
ご指摘の画像は、ランドの二色法(のコンピューターシミュレーション)のデモなのですから、全画素でG値とB値が一致します。かつ、R値はG値あるいはB値を超えません(同じ値になる、すなわち灰色になることはある)。添付の画像ではイチゴの画素の大半は灰色です。pic.twitter.com/cizPJs26bg
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