Re: [Lcms-user] Devicelink ICC Workflow in Postscript CRD

[Graeme G. <gr...@ar...>]

Olaf Drümmer wrote:
> It's a long time since I last looked into this kind of stuff but as far as I remember,
> a CSA is essentially equivalent to a source profile, whereas a CRD is equivalent to an
> output profile. Unless I am missing something a DeviceLink equivalent does not exist in
> PostScript.... You could probably though write some possibly complex PostScript code
> that achieves the same effect as a CMM 'sending' data through a DeviceLink profile...

It's actually close to impossible to do this for more than RGB output (ie., CMYK->CMYK),
because the colors get squeezed through XYZ space. Getting absolute colorimetric
intent is also a trick. To do true device links, we (Colorbus) had to use interpreter
specific code to bypass the CRD/CSA approach (JAWS and Adobe CPSI). I don't know
if GhostScript has a similar mechanism.

Graeme Gill.