That's correct. But it doesn't add one bit of signal; the noise level increases as well. That's where the sqrt factor comes from.
On Wed, Sep 14, 2005 at 07:08:07AM -0400, Herb Chong wrote: > my Nikon scanner does oversampling in the driver. every doubling of passes > adds about 1 bit of resolution. > > Herb.... > ----- Original Message ----- > From: "John Francis" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Tuesday, September 13, 2005 11:16 PM > Subject: Re: What Ever Happened to Chrome? was: Being There > > > >On Tue, Sep 13, 2005 at 10:59:10PM -0400, Herb Chong wrote: > > > >>doubling the number of frames ought to reduce the noise by a factor of 2 > > > >Sqrt(2), shirley? > > > >
