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AkiyoshiKitaoka's profile
Akiyoshi Kitaoka
Akiyoshi Kitaoka
Akiyoshi Kitaoka
@AkiyoshiKitaoka

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Akiyoshi Kitaoka

@AkiyoshiKitaoka

I am an experimental psychologist who studies visual illusions as well as makes illusion artworks. #illusion #opticalillusion #perception #錯視

Kyoto, Japan
ritsumei.ac.jp/~akitaoka/inde…
Joined December 2011

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    Akiyoshi Kitaoka‏ @AkiyoshiKitaoka 14 Nov 2017
    • Report Tweet
    • Report NetzDG Violation

    イチゴは赤く見えるが、「『画素は赤くないのに赤く見える色の錯視』と言うのはマチガイで、RGB信号のうちR信号があるからそう見える」と主張する方に都合がよいかもしれない図(加法混色の並置混色)。もっとも、赤く見えないところにもR信号はありますけどね。pic.twitter.com/4whFPJFzxp

    12:26 AM - 14 Nov 2017
    • 4 Retweets
    • 11 Likes
    • Alex Elias Z. Kat OneryPopopango お茶とお煎餅 Steve's media tulpa おーちゃん ake chiel ᓚᘏᗢ Ixtab
    1 reply 4 retweets 11 likes
      1. New conversation
      2. ぶどう茶‏ @budoucha 14 Nov 2017
        • Report Tweet
        • Report NetzDG Violation
        Replying to @AkiyoshiKitaoka

        明度に対するR成分の割合が周囲と比べ相対的に高いために赤に見えるという事なんでしょうか。全体に一様なフィルタがかかっているという前提が脳内に必要そうですが、画像全体が特定の色に偏っている場合には何らかの補正が必要なはずだと自動で認識するようになっているのでしょうか。

        1 reply 0 retweets 1 like
      3. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka 14 Nov 2017
        • Report Tweet
        • Report NetzDG Violation
        Replying to @budoucha

        色の恒常性の研究では乗算的色変換(上図)が普通なのですが、錯視屋の私は加算的色変換(下図)について錯視扱いでアピールしていたところ、この2、3年でやっと注目されるようになりました。論文もアクセプト寸前です。アルゴリズムは完成していますが、人間の視覚系はそこまでの性能はない模様です。pic.twitter.com/5lGOjc6pg3

        0 replies 1 retweet 1 like
      4. End of conversation

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