On Wed, Mar 21, 2012 at 8:39 AM, Kai-Uwe Behrmann <[email protected]> wrote: > Am 20.03.12, 21:17 +0100 schrieb Thomas Lübking: > >> Am 20.03.2012, 20:12 Uhr, schrieb Martin Graesslin <[email protected]>: >> >>> A fully color corrected compositor seems feasible to me >> >> I'm atm. not even sure about that. >> >> I might be utterly wrong, but my impression is that the xvidmode extension >> can correct screens (eg. xcalib loads icc profiles), so a screen wide color > > xvidmode gamma ramps are per channel curves. These are very limited compared > to ICC based colour correction. Those gamma curves provide better gray > balance and potentialy white point adjustment. But they do not describe > colour primaries shifts or other more complex distortions. Gamma curves must > be taken into account for ICC profiles. But detailed characterisation of > device colorimetry happens usualy in ICC profiles.
This may be an ignorant question, but can xvidmode be extended to offer more complex correction? -Todd
