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[filmscanners] RE: 8 bit versus 16
> From: filmscanners_owner@halftone.co.uk
>
> Grayscale only has one channel, and the TOTAL number of bits available is
> only 8 bits per pixel, for 8 bit grayscale. For color, there are three
> color channels available, and therefore the TOTAL number of bits per pixel
> is actually TWENTY-FOUR using 8 bit/color pixels, instead of simply 8.
As I said in a post to Robert, if you have sufficient noise (from either the
CCD or film grain) to dither the finer gradations up into the top eight
bits, then the extra bits buy you nothing. That's equally true of B&W and
color.
--
Ciao, Paul D. DeRocco
Paul mailto:pderocco@ix.netcom.com
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