Archived posting to the Leica Users Group, 2004/05/02
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Brian, Duh! Huffman-code redundancy? I googled it...don't understand. Please point me to the idiot's guide! Leo On May 2, 2004, at 11:10 AM, Brian Reid wrote: > > >> nothing will last forever even if properly stored. and most things >> will deteriorate because they won't be properly stored. and the >> technology for accessing "whatever" will become harder and harder to >> save and migrate - especially if you haven't kept up with the >> migration in a steady way. > > This is all true. > But with paper/film/papyrus/parchment, the medium *is* the image. A > copy reduces the quality. > With digital, the medium *stores* the image. A copy does not reduce > the quality. > Bits are forever, because a 0 will always be a 0 and a 1 will always > be a 1. > Sure, the disk on which you are storing the bits might need to be > changed out. But a faded 1 will never be a 0.83 or 0.61, it will be a > 1. > > I think that if I wanted to preserve an image for a thousand years, I > would digitize it into an uncompressed TIFF file at 16 bits/pixel, add > 20% Huffman-code redundancy, image the digitization into a sort of > fine-grained barcode, and then print the barcode out on museum-grade > doubleweight glossy photo paper, developed and fixed according to > best-practice archival standards, then seal that paper into an > airtight metal box. _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >