Digital BW, The Print

Peter writes:

> But technically this isn't "binning", because
> true binning is mutually exclusive.

Yes, it is.  The RGB channels are mutually exclusive.  But even if you don't
look at it that way, the same principle applies.  You are discarding
information, and you can't recover it after it's gone.  Like a one-way hash
algorithm.

> 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.

Not so.  Yellow light will produce exactly the same signal as a certain
combination of red and green light, as I've explained over, and over, and
over.