Yes, -127 to +127.
« CIE files specifications »? There is no such thing.
CIE measurements can be saved in any format.
But for the purpose of color management, things revolve around the “CGATS”
standard.
It’s a text file format with fields documenting the Illuminant, Observer and
what the data represents.
There’s usually “device” data, CMYK or RGB, and “CIE” data, XYZ, Lab, spectral,
density, Lch, even some statistics like standard deviation although that’s
mostly found in IT8.7/1 or 2.
/ Roger
From: argyllcms-bounce@xxxxxxxxxxxxx <argyllcms-bounce@xxxxxxxxxxxxx> On Behalf
Of Sylvain Ard
Sent: April 20, 2022 2:24 PM
To: argyllcms@xxxxxxxxxxxxx
Subject: [argyllcms] Re: CIE files
Ok it is -127 to 127 no ? and what about CIE files specification please ?
Sylvain Ard
0549507724
0778380991
sylvain.ard@xxxxxxxxx <mailto:sylvain.ard@xxxxxxxxx>
http://sylvain-ard.fr
Entreprise individuelle SIRET : 80079243400022
Appt 26 Bât A Résidence Le Patio
83 rue de la Bugellerie
86000 Poitiers
Le mer. 20 avr. 2022 à 20:20, <graxx@xxxxxxxxxxxx <mailto:graxx@xxxxxxxxxxxx> >
a écrit :
L extends from 0 (Black) to 100 (White).
a and b extends from -128 to +128.
/ Roger
From: argyllcms-bounce@xxxxxxxxxxxxx <mailto:argyllcms-bounce@xxxxxxxxxxxxx>
<argyllcms-bounce@xxxxxxxxxxxxx <mailto:argyllcms-bounce@xxxxxxxxxxxxx> > On
Behalf Of Sylvain Ard
Sent: April 20, 2022 2:14 PM
To: argyllcms@xxxxxxxxxxxxx <mailto:argyllcms@xxxxxxxxxxxxx>
Subject: [argyllcms] CIE files
Hello,
have you specifications for CIE files and other question : in these files, what
are the ranges of L*, A* and B* please ?
Thank you
Best regards
Sylvain Ard
0549507724
0778380991
sylvain.ard@xxxxxxxxx <mailto:sylvain.ard@xxxxxxxxx>
http://sylvain-ard.fr
Entreprise individuelle SIRET : 80079243400022
Appt 26 Bât A Résidence Le Patio
83 rue de la Bugellerie
86000 Poitiers
