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Subject: Creating barrel distortion



I would like to process video, producing the illusion that it is watched
through a convex (car rear view) mirror.

The first step is obviously just a horizontal flip, but what is next?

I think that introducing some barrel distortion might do the trick, but
how do I produce that?

A much more common request is to compensate for barrel distortion, but
what is the algorithm for producing it?

Tia,

Johan Stäck
Skellefteå
Sweden

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