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[filmscanners] Re: Color spaces for different purposes

Laurie writes:

> In practice, I do not think they are seperable
> so as to allow some other action to be carried
> out between the two processes, although it may be
> theoretically possible.

JPEG encoding requires the rough equivalent of a Fourier transformation on
the data; once that is undertaking, bitmapped operations on the image are no
longer possible.  So one cannot really separate them.  Not all encoding
formats impose this constraint, but I haven't heard of any software that
separates the two processes, just the same.

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