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[–] 4 points 1 year ago (2 children)

A lot of masks only work in the visible light spectrum. It's entirely possible to "radar" images and remove them.

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  • [–] 4 points 1 year ago (1 child)

    oh good my phone is set up for that?

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  • [–] 3 points 1 year ago

    No. Most cameras have filters to cut non-visible light.

    And any EM that passes through a mask is probably going to pass through flesh too. And any EM that's transmitted and not reflected means it can't be imaged by a sensor.

    Very thin fabric, like a thin white T-shirt, can be transparent to IR in bright sunlight. But that's a fairly rare case.

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