Re: Compression

[P3D Eric Goldstein <egoldste@xxxxxx>]

Dr. George A. Themelis wrote:

> I know most people are thinking of digital compression but what
> first came in my mind when I read the question is the anamorphic
> (optical) compression what Lois and Manley Koehler use with their
> Minolta cameras for wide-screen stereo projection.

Compression of contrast range is also found in our photographic films
(negative and positive) and papers. Virtually none of them are linear,
especially at the extremes (resulting in the so-called "heel" and "toe"
regions).

Is there a sensory recording system or medium which does *not* exhibit
some form of non-linearity or compression?


Eric G.


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