渡辺英治先生のインクブロット錯視を描画するのは結構大変なので、これで勘弁。 Black columns appear to expand laterally.pic.twitter.com/MKRTiOmGAB
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ink blot illusion https://eijwat.blogspot.com/2018/04/blog-post.html …
渡辺色はよくひろがるなー。これも縮む方がいるのだろうか
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