I won't ELI5, but maybe someone here remembers the name for chimeric pictures wh... | Hacker News

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082349872349872 on Sept 30, 2020 | parent | context | favorite | on: Fourier Filtering

I won't ELI5, but maybe someone here remembers the name for chimeric pictures which contain one image in the low frequencies, and a different one in the high, so one gets different impressions (smile vs frown, etc.) depending upon one is seated at one's monitor or viewing from across the room?

Edit: https://en.wikipedia.org/wiki/Hybrid_image

Are those worth a thousand words?

sdenton4 on Sept 30, 2020 | [–]

Oh wow; the text example is great. This is going in my bag of puzzle design tricks...

phab on Sept 30, 2020 | [–]

These are awesome. This makes me want to try hiding information as a very-low-frequency signal superimposed across a whole stream of images...

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