No subject

Tue May 3 09:12:53 PDT 2011

want to embedd calibration settings like vcgt, Gutenprint calibration XML, 
or PPD settings inside a ICC profile meta tag for automatic resolving and 
correct setup without any user intervention. If a calibration can exists 
as well outside a ICC profile it is fine. E.g. vcgt does 
usually not exist outside a ICC profile. Even if ArgyllCMS has some way to 
place this calibration inside a CGATS file. cameraRAW calibration in 
Oyranos is not exported and PPD calibration data obviously existing as 
well outside of ICC profiles. We can have both if needed.

What we have to be carefule is where is the calibration state from inside 
the ICC profile synced with the actual driver settings. For monitor setup 
this is usually done in parallel to profile upload to the Xserver. I would 
suggest a policy where the ICC profile setup covers as well the 
calibration setup. That may happen in CPD/lpr for user profiles and 
cupsICCProfile can handle this in the server or practical during print 
queue setup. After that one time driver setup, it would be clever to 
forget about the embedded calibration in the ICC profile and continue 
without modifications of the driver settings. If a calibration changes by 
whatever reson, the calibration changing process has to repair the former 
driver state itself, e.g. screensavers in Xorg.

kind regards
Kai-Uwe Behrmann
developing for colour management +

Am 03.05.11, 11:14 -0400 schrieb Ann McCarthy:
> Although the ink settings precede the profile, and may be the same in more
> than one profile, it is still important for correct profile usage to record
> in each profile the ink settings that are correct for that profile.
> The ink settings are part of the underpinning of a profile determining its
> correct use.

> On Mon, May 2, 2011 at 5:39 PM, edmund ronald <edmundronald at>wrote:
>> I would recommend finding a way to pass the ink settings independently
>> of a profile.

>> On Mon, May 2, 2011 at 10:43 PM, Kai-Uwe Behrmann <ku.b at> wrote:
>>> I am searching a way to unambigously pass settings from the print client
>>> (CPD, lpr) to the CUPS server and print driver (rastertoprinter).
>>> There are two ways possible. Embedd the device calibration settings
>> always
>>> into the print ICC profile. Or pass these settings independently.

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