Hallöchen! 'Bruno Postle' via hugin and other free panoramic software writes:
> Yes, there is no direct conversion possible unless you limit the > parameters. However given the two formulas, this is a curve fitting > problem - it ought to be possible to get a very good approximation > with a spreadsheet solver. In case of non-matching powers, I failed to achieve this. I tried to convert Adobe's ACM model (Lightroom) to Hugin by re-sampling the Adobe polynomial. The results were unusable. I suspected this was due to the fact that two terms with different powers are orthogonal. However, if all powers are availiable in the destination model, you have a fighting chance, even to convert exactly. We recently had a similar problem on the Lensfun mailing list. There, a general a,b,c,d model should be mapped to Hugin's a,b,c,(1-a-b-c) model. This works exactly because you have scaling as one degree of freedom. This way, one coefficient (no matter which!) can be set to an arbitrary non-zero value. The conversion is not easy, though. Tschö, Torsten. -- Torsten Bronger Jabber ID: torsten.bron...@jabber.rwth-aachen.de -- A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ --- You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. To unsubscribe from this group and stop receiving emails from it, send an email to hugin-ptx+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/hugin-ptx/87eg7dg18x.fsf%40physik.rwth-aachen.de. For more options, visit https://groups.google.com/d/optout.
