Hi there, in gwyddion there is this nice technique to 2dfft-filter any image. So the original image is fft filtered and one chooses the area which then has to be transformed back. Is it possible to import such a fft- spectra in this dialogue and then do the inverse transformation into the real space? Or do I lack the imaginary part? The experiment we do is the following: we pattern a surface via laser- interference what leads to regular bumps and dips (some kind of array). With this you get an diffraction grating, so it is easy to measure the intensities, width and position of the diffraction maxima. Looking at this diffraction pattern gives a very good idea how the image looks like in real space for the trained eye, but it would be even better to be able to calculate it. So could you implement an option to load a "picture" into the fft- filtering dialogue? Or do you have a better idea to make it work?
Best regards and thanks in advance -- markus ------------------------------------------------------------------------- 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
