Re: filmscanners: creating correction curves from scannedcalibration chart?

[John Brownlow <john@pinkheadedbug.com>]

on 11/11/01 6:36 PM, Ned Nurk at ned_nurk@hotmail.com wrote:

> 
> (extreme example) You could have a scanner that mapped mid grey at 20,20,20
> and a monitor that mapped it at 230,230,230. The ICM Profile describes this
> and allows colour management systems to convert from one colour space to
> another, and the RGB (device-dependant) values change accordingly, depending
> on which space you are in, but the device-independant colour space values
> (XYZ, LAB, X'Y'Z' etc) would not change.

But in the context WE are discussing (a color managed photoshop
environment), the RGB values are functioning exactly like the LAB values.
That's the point you seem to be missing.

--
John Brownlow