Archived posting to the Leica Users Group, 2011/12/30
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Herb, I can only offer an opinion. I suspect that the compression is somewhat dependent on the content of the image, resulting in the variation that you find in the size of the compressed files. Jim Nichols Tullahoma, TN USA ----- Original Message ----- From: "Herbert Kanner" <kanner at acm.org> To: "Leica Users Group" <lug at leica-users.org> Sent: Friday, December 30, 2011 3:00 PM Subject: [Leica] DNG compression > I'm probably flogging a dead horse, but there is one unanswered question. > In view of the slgorithm that showed up in a forum: multiply the value > that is between zero and 4096 by 16 and take the square root, thus mapping > the 12-bit number into an 8-bit one, i.e. 0 to 256, how come uncondensed > DNGs are all exactly 36.4 Mb, but the condensed ones have varying sizes? > > > -- > Herbert Kanner > kanner at acm.org > 650-326-8204 > > Question authority and the authorities will question you. > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > >