On Wed, Feb 16, 2011 at 10:07:55AM +0100, Palma D'Antonio - Unifg wrote: > Hello, I'm using the 'ISO' button to compute the roughness. It give the > possibility of filtering the data with a variable cut-off, but I'd like > to know (I don't find it in the manual) what kind of transfer function is > used to digitize the data. Maybe a discrete Fourier transform?
Yes, the frequency-domain split into waviness and roughness is performed using DFT. Yeti ------------------------------------------------------------------------------ The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: Pinpoint memory and threading errors before they happen. Find and fix more than 250 security defects in the development cycle. Locate bottlenecks in serial and parallel code that limit performance. http://p.sf.net/sfu/intel-dev2devfeb _______________________________________________ Gwyddion-users mailing list Gwyddion-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gwyddion-users
