Comment on There is the face of a cat in this picture. Can you find it?

DrBob@lemmy.ca ⁨3⁩ ⁨weeks⁩ ago

• DrBob@lemmy.ca ⁨3⁩ ⁨weeks⁩ ago

  Here’s another example. Look at this grating from several feet away.

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  • Marternus@discuss.tchncs.de ⁨3⁩ ⁨weeks⁩ ago

    How does it work?

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    • Allero@lemmy.today ⁨3⁩ ⁨weeks⁩ ago

      Contrast variations in white tiles, it seems. When you look close, the brain compares shades of white to the neighboring black. When you look far away, brain focuses on larger patterns.

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      • pyre@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

        that’s what it is, I’ve made over before. basically grayscale image faintly on a black and white pattern, doesn’t need to be checkerboard.

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    • remotelove@lemmy.ca ⁨3⁩ ⁨weeks⁩ ago

      Magnets, maybe.

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      • EmpathicVagrant@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

        Spray a little water on it and the illusion stops working, so yeah it must be magnets.

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  • ChaoticNeutralCzech@feddit.org ⁨3⁩ ⁨weeks⁩ ago

    Recovered image

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• ChaoticNeutralCzech@feddit.org ⁨3⁩ ⁨weeks⁩ ago

  How does that help? There is definitely a tiny cat but can you see a big one after Gaussian blur?

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  • DrBob@lemmy.ca ⁨3⁩ ⁨weeks⁩ ago

    I’m going to plead temporary insanity - I swear I saw a big face when I put it across the room. Now I don’t. 😄

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