[Openicc] Open Source compatible AdobeRGB profile

[almccart at lexmark.com]

Kai-Uwe,

Please note that the "compatible with Adobe RGB (1998)" statement
pertains to profiles that are built exactly for the specific Adobe RGB 
color space.
That word compatible is used when the profile is not built by Adobe.

If the RGB color space is any other color space - that is not exactly the 
Adobe RGB
color space - then the profile for that color space would NOT be 
compatible with
Adobe RGB.

A color space is defined by a specific combination of white point, viewing 
environment,
primaries, etc.  Please refer to ISO 22028-1 which specifies how to define 
color spaces.
Each ICC profile is built to interpret one and only one color space. 

So the phrase "AdobeRGB like colour spaces" should not be used. 

When building the compatibleWithAdobeRGB.icc profile I recommend you
look into ICC Version 4 requirements for the rendering intents as these
have changed compared to ICC Version 2.

Best regards,
Ann McCarthy
Lexmark CPD
Imaging Systems Engineering

"To every complex problem there is a simple solution - and inevitably it 
is wrong"   HL Mencken




Kai-Uwe Behrmann <ku.b at gmx.de>
Sent by: openicc-bounces at lists.freedesktop.org
07/07/2006 06:11 AM
Please respond to OpenICC Liste

 
        To:     Patrice Lagrange <lagrange at adobe.com>, Caulier Gilles 
<caulier.gilles at kdemail.net>
        cc:     OpenICC Liste <openicc at lists.freedesktop.org>
        Subject:        Re: [Openicc] Open Source compatible AdobeRGB profile


Adobe itself recommends to use "compatible with Adobe RGB (1998)" as 
naming for AdobeRGB like colour spaces. This is probably due to 
preparation to get this colour space adopted into standards, as 
Gilles Caulier from digiKam project pointed out.
see: http://www.adobe.com/adobergb

As "compatible with Adobe RGB (1998).icc" is a bit unconventional for a 
file name I would like to name the profile compatibleWithAdobeRGB.icc . 
This is better recognizable and not limited to EXIF.

Gilles and others,
would you take advantage of that profile? I like to packaged it
into the Oyranos' profiles collection. Location is /usr/share/color/icc 
on linux.

License can be free.

regards
Kai-Uwe Behrmann
                                + development for color management 
                                + imaging / panoramas
                                + email: ku.b at gmx.de
                                + http://www.behrmann.name


Am 05.07.06, 23:32 +0200 schrieb Kai-Uwe Behrmann:

> Hubert,
> maybe the AdobeRGB colour space can be refered as exif_second.icc ?
> If it would help, I could create this profile and put into Oyranos.
> A link from exif_second.icc to AdobeRGB.icc should suffice. As Adobe 
> stores profiles in a hierarchy I see no problems later on.
> The link would be used by applications only as they select by filename.
> Users see then "exif second" in the UI.
> 
> regards
> Kai-Uwe Behrmann
>                                 + development for color management 
>                                 + imaging / panoramas
>                                 + email: ku.b at gmx.de
>                                 + http://www.behrmann.name
> 
> 
> Am 05.07.06, 22:31 +0200 schrieb Sven Neumann:
> 
> > Hi,
> > 
> > On Wed, 2006-07-05 at 16:29 -0400, Hubert Figuiere wrote:
> > 
> > > > What about http://www.eci.org/eci/en/040_colour_standards.php ? Their
> > > > profiles could serve as an alternative for AdobeRGB, couldn't 
they?
> > > 
> > > How does it help if the pictures are in the AdobeRGB colorspace?
> > 
> > Users would still have to download the AdobeRGB profile from Adobe, of
> > course. But at least they would have a reasonable RGB profile to work
> > with. And long-term it might make AdobeRGB less important.
> > 
> > 
> > Sven
> > 
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