On Mon, 12 Apr 2010 23:32:32 Sebastian Haase wrote: > are you sure it makes even sense to save a 16-bit RGB image ? This is > not meant as an excuse for PIL to not support it, > but 16mio colors should likely be enough for any application (i.e. > 8bit per R,G and B)
It does make sense. Absolutely! Maybe not if you are *just* thinking in terms of final output for an end user, but during the whole capturing/processing/manipulation phase one can reduce many artifacts introduced through rounding, etc. Also when images are touched up by changing lightness or contrast images tend to expose "banding" quite severely. This and other effects are also the background behind the increasing popularity of HDR (High Dynamic Range) imaging. Particularly in scientific imaging subtle differences are much preserved this way. And it looked like Dan's image is the result of a microscopic picture, or something like that, with low contrast. So it could strongly benefit from a change in lightness and contrast. Higher channel bit depth are important for these cases, and even more to keep up with needed capabilities for the future! Guy -- Guy K. Kloss Institute of Information and Mathematical Sciences Te Kura Pūtaiao o Mōhiohio me Pāngarau Massey University, Albany (North Shore City, Auckland) 473 State Highway 17, Gate 1, Mailroom, Quad B Building voice: +64 9 414-0800 ext. 9266 fax: +64 9 441-8181 g.kl...@massey.ac.nz http://www.massey.ac.nz/~gkloss
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