[Openicc] [Fwd: icm profiles in debian]

[edmund ronald]

Off the top of my head, I would think that the ICC is the right place to go
for ICC color profiles (!) and indeed

http://www.color.org/srgbprofiles.xalter

shows us some profiles, and acceptable free license conditions.  I would
 recommend  the file*sRGB_IEC61966-2-1_no black_scaling.icc
*

Edmund

On Sat, Feb 2, 2013 at 6:04 PM, Kai-Uwe Behrmann <ku.b at gmx.de> wrote:

> Hello Bernhard and bug hunters,
>
> there are different aspects for ICC profiles to work like expected.
>
> The most important thing, beside your/debian's requirement for proper
> licensing, is its correct colorimetry. That can be expected to be right for
> the icc-profiles-free included sRGB.icc from lcms and the same from
> ArgyllCMS called sRGB.icm. For instance the packages in question could
> require icc-profiles-free and a sRGB.icc profile gets installed on the
> system. Having only one sRGB profile installed is from a usability point of
> view very plausible. So requiring icc-profiles-free appears a logical
> option.
>
> The next is, applications need to identify the profile. Some applications
> search profiles by name. However, it is no good idea to reuse the "sRGB
> Color Space Profile.icm" name of the original HP profile, as that will
> cause confusion among users. But you might consider to replace the
> offending sRGB.icm with the sRGB.icm from the Argyll package.
>
> The old profile names need to be replaced by the new name in configuration
> files, source code and documentation. grep is your friend. Ideally the unit
> tests of the packages in question can spot issues.
>
>
> As you asked about, a Scarse sRGB profile variant has colorimetrically
> some errors. That might be fixed in newer versions. I do not know.
> http://lists.freedesktop.org/**archives/openicc/2011q4/**004425.html<http://lists.freedesktop.org/archives/openicc/2011q4/004425.html>
>
> An newer review about sRGB profiles is here:
> http://ninedegreesbelow.com/**photography/srgb-profile-**comparison.html<http://ninedegreesbelow.com/photography/srgb-profile-comparison.html>
>
>
> Hope that helps,
>
> Kai-Uwe Behrmann
>
>
> Am 02.02.2013 16:51, schrieb Bernhard Reiter:
>
>  Forwarding this to the OpenICC maling list requesting their help as per
>> suggestion of user oy (Kai-Uwe Behrmann) in #scribus.
>>
>> Kind regards
>> Bernhard Reiter
>> PS: Please CC me (and the people I'm CC'ing) as I'm not subscribed to
>> this list!
>>
>> -------- Weitergeleitete Nachricht --------
>>
>>> Von: Stuart Prescott <stuart at debian.org>
>>> An: Oleksandr Moskalenko <malex at debian.org>, Jonas Smedegaard
>>> <dr at jones.dk>, Bernhard Reiter <ockham at raz.or.at>
>>> Betreff: icm profiles in debian
>>> Datum: Sat, 2 Feb 2013 00:58:58 +0000
>>>
>>> Dear icc-profiles-free maintainers,
>>>
>>> You may or may not have noticed a series of bugs filed about the
>>> inclusion of
>>> sRGB.icm from HP in a variety of different packages. Modified versions
>>> of this
>>> file are not distributable so inclusion in packages fails DFSG #3. We
>>> now have
>>> bugs #657281, #699301, #699304, #699305 and #699306 for packages that
>>> include this file.
>>>
>>> While trying to understand what can be done to solve this problem, I
>>> realised
>>> that a number of other packages also contained ICC/ICM profiles (e.g.
>>> krita,
>>> argyll, lcms, icc-profiles-free etc) and that there was a chance that
>>> one of
>>> these Free profiles would be suitable as an immediate replacement for the
>>> problematic profile currently in Debian. (I also wondered if these
>>> package
>>> should be using icc-profiles rather than shipping their own versions, but
>>> that's another question for another day.)
>>>
>>> At this stage, however, I reach my limit of knowledge about colour
>>> profiles and
>>> hope that perhaps one of you would be able to provide advice on the
>>> abovementioned bugs. Can one of the other sRGB.icm in Debian that claims
>>> to
>>> come from lcms or scarse and be under a permissive licence be used as a
>>> drop-
>>> in replacement for this file? Can the icc file from icc-profiles-free be
>>> utilised? If this can be done, then we potentially have a nice solution
>>> to 5
>>> RC bugs...
>>>
>>> cheers
>>> Stuart
>>>
>>> --
>>> Stuart Prescott    http://www.nanonanonano.net/
>>> stuart at nanonanonano.net
>>> Debian Developer   http://www.debian.org/         stuart at debian.org
>>> GPG fingerprint    BE65 FD1E F4EA 08F3 23D4 3C6D 9FE8 B8CD 71C5 D1A8
>>> GPG fingerprint    90E2 D2C1 AD14 6A1B 7EBB 891D BBC1 7EBB 1396 F2F7
>>>
>>
>>
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