depends on the scanner. more expensive models will change the lut the a/d uses inside the scanner. cheaper models will do this in the backend. which scanner/backend are you using?
allan On Tue, 13 Jan 2004, Christopher Marshall wrote: > I was just curious if specifying a contrast argument to the backend is > different from doing a > default scan and adjusting the contrast in the gimp after the scan. > > I would imagine that it does mean something different in that you would be > setting the contrast > before the A/D step in the scanner if you specified such a parameter to the > backend. Using the > gimp afterward to adjust the contrast would introduce additional quantization > noise (over and > above specifying it to the backend prior). > > Am I right? Or is the backend trying to save me an extra step (essentially a > convienence > feature)? > > Chris Marshall > > > __________________________________ > Do you Yahoo!? > Yahoo! Hotjobs: Enter the "Signing Bonus" Sweepstakes > http://hotjobs.sweepstakes.yahoo.com/signingbonus > > -- "so don't tell us it can't be done, putting down what you don't know. money isn't our god, integrity will free our souls" - Max Cavalera
