[ygritte]

It looks like this could be used for some form of steganography. You need the right mirror form for decoding.

[tsumnia]

When I saw the video I wondered how many layers of refraction you could achieve while maintaining coherent images. The pixelated style they should might be the easiest use to develop this from.

[lawlessone]

it's all pixelated. Some is just more pixelated.

[serf]

laplacian pyramid warping or just anamorphosis?

'anamorphic encryption' schemes have been used for hundreds of years.

[jkhdigital]

Can you give a specific example? The term “anamorphic encryption” was used in a paper from EUROCRYPT 2022 and I don’t see any prior formal study of the subject. A follow-up paper from PoPETS 2023 establishes that most of the widely-used cryptosystems introduced over the past few decades are indeed capable of anamorphism but nobody used the term “anamorphic encryption” until the last few years.

To say that they have been used for “hundreds” of years seems like a sweeping generalization in need of better context.

[lawlessone]

Da Vincis mirror writing? Sure it didn't use the exact word but the concept is there.

https://www.openculture.com/2017/11/why-did-leonardo-da-vinc...

[jkhdigital]

Not trying to be argumentative, but mirror writing is neither encryption nor steganography. The concept is not there.

[lawlessone]

Using the mirror to make it difficult to transcribe seems like a similar concept. Sure it's not exact phrases you'll find doing "google research"

[jkhdigital]

My PhD research is in steganography. I was familiar with those papers because I’d read them before.