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Mon Jul 11 12:43:23 CEST 2011
schrieb luigi scarso:
> Conversion between color spaces needs a color profile.
> For example (0,0,0) -> (0,0,0,1) not always is the best choice.
> Generally a rgb color space is the a good choice:
> practically many monitors and cameras (hence jpeg) have the same
> gamut (ie, the same color profile)
> and it is one of the wider color space also --- i.e. one can assume
> that a rgb color is a real color
> A cmyk is often a virtual color: you need the profile of the medium
> (usually the paper) .
> And the profiles *differ* each other.
General colour space conversion requires profiles, true. But speaking
about black only, what could be wrong with a mapping (0,0,0) <==> (0,0,0,1)?
Especially, if your looking at RGB colours as true colours that don't
require a profile for interpretation. Then (0,0,0) must be interpreted
as pure black. What would be a better match to pure black than
(0,0,0,1) in print?
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