Are you about post from JimC? "This was in part due to Paul J. Lee, who collaborated with Hirakawa Keigo (the original co-author of AHD algorithm as part of his Ph.D thesis)."
If I understand everything correctly - author of VCD is Paul Lee "(the original co-author of AHD algorithm as part of his Ph.D thesis)" http://www.dpreview.com/members/4422684169 http://forums.dpreview.com/forums/read.asp?forum=1018&message=30233091 In this thread you can see also ejmartin (one of the authors of AMaZE), Iliah Borg (co author of libraw and RPP) and other clever boys, skilled in raw development. And when you dig into the code of ahd_interpolate_mod.c you can see: if (verbose) fprintf (stderr,_("AHD interpolation (modified for anti-aliasing)...\n")); So question: Which refinements are better refinements? :-) Strictly speaking in VCD implementation we have 3 different demosaicing: 1) modified ahd 2) mixed modified_AHD and VCD. This is what named VCD in darktable 3) VCD Demosaicing named AHD in darktable is from dcraw (libraw). PS: I'l submit patches in 1-2 days. On Tue, 2010-09-07 at 23:27 +0200, Jose Carlos Garcia Sogo wrote: > BTW, shouldn't be using the versions for AHD that are in dcraw.c??? I > suppose those have some refinements, and that is what this post seems > to say: > http://forums.steves-digicams.com/nikon-dslr/164000-better-shooting-raw-converting-jpg.html > Regards, Andrey Kaminsky -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
