[Openicc] CUPS Color Management under Linux... (what is to do ?)

[Hal V. Engel]

On Thursday, February 10, 2011 11:29:32 AM Chris Murphy wrote:
> On Feb 10, 2011, at 12:23 PM, Chris Murphy wrote:
> > If there is a null profile, I have never heard of such a thing.
> 
> There can be a null profile using a DeviceLink 'link' class profile. But
> they are not embeddable in anything, including PDF.

GhostScript has provisions for device links and I think it might be possible 
to use it's command line args to force null transforms since it allows for 
substitutions on the command line for what profiles will be used with DeviceXXX 
objects.  

Also GhostScript appears to use a set of default profiles for DeviceXXX objects 
which can be over ridden by command line args.  So it will be nessary to force 
these settings for things like profiling charts.  I think poppler just passes 
these values through if the output color space type (IE. RGB, CMY(K)...) 
matches the objects color space type.

> 
> I am looking for a single profile that basically means either: "conversion
> with this object is disallowed" or it means "I am the same profile as the
> conversion counterpart": i.e. it compels a null transform to occur by
> being a clone of the source (or destination) profile. An explicit message
> to the CMM for pass through.
> 
> 
> Chris Murphy
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