Digital BW, The Print

Did you guys like, go to college or something?

----- Original Message -----
From: "Jon Dubovsky" <entropy@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Wednesday, May 28, 2003 8:47 AM
Subject: Re: [Digital BW] Digital, film, scanning comparisons


> >>It is a basic mathematical fact that the process of binning is
>  >>*not* reversible under almost all circumstances.
>  >
>  > But technically this isn't "binning", because true binning is
>  > mutually exclusive.   It's either in this bin or that one.  In this
>  > case you have OVERLAPPING bins, and not only that but the sensitivity
>  > curve in each bin is different.   So the same pixel has a signal in
>  > bin A and a signal in bin B.  There is only one unique point on the
>  > spectrum that would produce any give signal in both bins.
>
> Mathematically, it is the same.  Whether the response functions overlap or
> not, except for trivial cases (again, such as an impulse function for the
> response function), the impossibility of conversion still holds.
>
> --
> Jon Dubovsky ( entropy@... )
>
>
>
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