[argyllcms] Re: Custom Illuminant

  • From: Roger Breton <graxx@xxxxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Thu, 03 Jul 2014 13:50:06 -0400

Keep them coming ;-)

Roger

-----Original Message-----
From: argyllcms-bounce@xxxxxxxxxxxxx [mailto:argyllcms-bounce@xxxxxxxxxxxxx]
On Behalf Of robert@xxxxxxxxxxxxxxxxxx
Sent: 3 juillet 2014 13:22
To: argyllcms@xxxxxxxxxxxxx
Subject: [argyllcms] Re: Custom Illuminant

Well Roger, I'm the one who's sorry for asking all these dumb questions!  

I'm doing a bit more reading up and then I'll have some more dumb questions,
I'm afraid!

Many thanks for your help,

Robert

-----Original Message-----
From: argyllcms-bounce@xxxxxxxxxxxxx [mailto:argyllcms-bounce@xxxxxxxxxxxxx]
On Behalf Of Roger Breton
Sent: 03 July 2014 12:44
To: argyllcms@xxxxxxxxxxxxx
Subject: [argyllcms] Re: Custom Illuminant

You are right, clipping will happen in transforming the most saturated CMYK
values to the monitor, depending on the gamut size of the monitor space.
Soft proofing the saturated cyans, for example, requires a very large
NEC-like or Eizo or HP Dreamweaver-like kind of monitor to accurately view
the data without clipping. Thank's.

Sorry Robert.

Best / Roger

-----Original Message-----
From: argyllcms-bounce@xxxxxxxxxxxxx [mailto:argyllcms-bounce@xxxxxxxxxxxxx]
On Behalf Of Graeme Gill
Sent: 3 juillet 2014 02:53
To: argyllcms@xxxxxxxxxxxxx
Subject: [argyllcms] Re: Custom Illuminant

Roger Breton wrote:

> Out-of-gamut clipping? Impossible. Suppose I am viewing a CMYK image 
> in AbsCol. By definition all CMYK colors are in gamut.

In gamut for the CMYK device, but not necessarily in gamut for the proofing
device or display.

Graeme Gill.





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