[Openicc] New options on the mainline

[edmund ronald]

Why do you want to linearize with respect to deltaE and not with
respect to density as in the classical model ?
I quite agree that the a,b values may change indicating a hue shift.
However, I would have thought that the purpose of linearisation is to
ensure that one can achieve the maximal achieveable excursion of the
density in a way such that it is maximally adjustable.

Edmund

On Jan 22, 2008 6:41 PM, Graeme Gill <graeme at argyllcms.com> wrote:

> No, that's not my suggestion. Some colorants (ie. Yellow)
> do not cause big changes in L*, most of the change is
> in the other components. Throwing away a*b* would
> reduce the signal to noise ratio of the readings to
> an unacceptable degree. The full L*a*b* should be
> used to linearise with respect to delta E.
>