On Mon, Dec 29, 2014 at 8:42 PM, Bernhard <[email protected]> wrote: > No, as it is from a scanner it indeed is RGB. The fourth channel is IR for > dust cleaning and saved as alpha channel within the TIF.
Well the scanner has some kind of sensor inside it, so it's at least in theory possible to have actual bayer raw from it. I think Leaf sells some scanners that produce actual raw files for example. The IR channel indeed explains the fourth channel. > So I will stick with TIFF. Actually if there's an option to produce just a 3 channel DNG (without the IR alpha channel) it will probably work but will be the exact same data as TIFF so it's probably not worth it. Cheers, Pedro ------------------------------------------------------------------------------ Dive into the World of Parallel Programming! The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
