What i mean is not the feature Denis Scaini mentioned. More important than a high-order polynomial fit of the whole image is a offset / first order fit line by line. But to avoid the influence of high features / steps in this levelling, a mask is necessary.
What exactly does "median linecorrection" do? Regards, Andreas Winkler -----Ursprüngliche Nachricht----- Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Im Auftrag von David Necas (Yeti) Gesendet: Dienstag, 19. August 2008 17:09 An: Gwyddion use discussion Betreff: Re: [Gwyddion-users] How to do Flatten / Line Fit with Mask On Thu, Aug 14, 2008 at 11:35:39AM +0200, Denis Scaini wrote: > > In particular, the missing tool is the possibility to do a polynomial > leveling of an image excluding an user defined area of it. I added this possibility. It might not work for high polynomial degrees (since fitting of plain powers is ill-conditioned, and this cannot be easily fixed for a masked, i.e. unknown and irregular, domain), but it works for degrees that actually make sense to use. Yeti ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Gwyddion-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/gwyddion-users ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Gwyddion-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/gwyddion-users
