[filmscanners] Re: Scanning chromogenic

[TonySleep@halftone.co.uk]

On Fri, 1 Feb 2002 10:25:15 +0100   Alessandro Pardi
(alessandro.pardi@inferentiadnm.com) wrote:

> I understand that keeping also R and B channels should
> somehow "average out" grain, but I'm also sure this will increase noise
> (especially from the blue channel) so much that I doubt it will give
> better
> scans. Anyway, I'll give this a try and see what happens...

Using all 3 channels averages aliasing errors, which is why grain seems
less pronounced. Noise could be a problem on some scanners, as you say, but
you could mask it off on the offending channel.

Regards

Tony Sleep
http://www.halftone.co.uk - Online portfolio & exhibit; + film scanner info
& comparisons
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