Perhaps, the unavailability of this feature is the main problem in using Gwyddion as the "default" processing tool for AFM images. In particular, the missing tool is the possibility to do a polynomial leveling of an image excluding an user defined area of it. The idea is to define a "no-interest" complex area using masks (or marking grains by threshold) and to level only the remaining parts. The masked parts have not to contribute in the leveling process. Something like that is routinely performed (and very efficiently!) by the korean software XEI, supplied with PSIA AFMs, unfortunately only on their proprietary image format. My question is, Gwyddion is already able to do this operation excluding a simple rectangular area so, is impossible to extend this function to a patchy area?
Thank you a lot for the discussion and the continuous improvements in this fantastic piece of software! Denis On Aug 14, 2008, at 10:53 AM, David Necas (Yeti) wrote: > On Wed, Aug 13, 2008 at 04:52:27PM +0200, [EMAIL PROTECTED] > wrote: >> >> I just have one question: Normally, for very smooth surfaces, i >> start with a >> XY-planefit (1st order) and a linefit (0th order). It seems that a >> linefit >> with Gwyddion is principally possible (Height median correction), >> but it >> seems not possible to use a mask for this (e.g. to exclude >> particles, higher >> topography levels). > > Hello, masking is not possible in Median line correction. However, > Path > level tool > > > http://gwyddion.net/documentation/user-guide/leveling-and-background.html#path-level > > might help you in cases like this. > > 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 ----------------------------------------------------------------------------------------- Denis Scaini Ph.D in Nanotechnologies, Laboratorio Nanostrutture at ELETTRA Synchrotron Light Source S.S. 14 km 163.5, 34012 Basovizza (Trieste), Italy Ph +39-040-375-8755 Fax +39-040-375-8029 e-mail: [EMAIL PROTECTED] Universita' degli Studi di Trieste, Piazzale Europa 1, I-34127, Trieste, Italy ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------- 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
