Re: Color Profiles in lmtx

From: Peter Rolf <indiego@gmx.net>
To: ntg-context@ntg.nl
Subject: Re: Color Profiles in lmtx
Date: Wed, 12 Feb 2020 11:09:24 +0100	[thread overview]
Message-ID: <c23cd8d1-183d-2c8a-2341-fe1e1c34c3da@gmx.net> (raw)
In-Reply-To: <20200212084140.GA9951@sokrates>

Am 12.02.2020 um 09:41 schrieb juh:
> Hi all,
>
> again I have a question concerning color profiles.
>
> I have this to load the ISO Coated v2 300% profile.
>
> \setupbackend[
>    format=PDF/X-3:2003,
>    intent={ISO Coated v2 300\letterpercent\space (ECI)},
>    ]
>
> \setupcolors[cmyk=yes,rgb=no,]
>
> But is this profile part of the new lmtx version?
>
> I get this in my logs
>
> backend         > profiles > profile specification 'ISO Coated v2 300% (ECI)' loaded from '/home/juh/context-linux-64/tex/texmf-context/colors/icc/context/colorprofiles.xml'
>
> But I am not sure whether the profile is really loaded.
>
> In the old context distribution I had to put the profile in texmf-local.
>
> There is this in lmtx:
>
> ~/context-linux-64/tex/texmf-context/colors/icc/profiles$ ls -l
> insgesamt 3652
> -rw-r--r-- 1 juh juh     416 Jan  6 16:32 default_gray.icc
> -rw-r--r-- 1 juh juh    1992 Jan  6 16:32 ecirgb_v2.icc
> -rw-r--r-- 1 juh juh     700 Jan  6 16:32 ecirgb_v2_iccv4.icc
> -rw-r--r-- 1 juh juh 1829093 Jan  6 16:32 isocoated_v2_300_eci.icc
> -rw-r--r-- 1 juh juh 1829077 Jan  6 16:32 isocoated_v2_eci.icc
> -rw-r--r-- 1 juh juh    3144 Jan  6 16:32 srgb.icc
> -rw-r--r-- 1 juh juh   60960 Jan  6 16:32 srgb_v4_icc_preference.icc
>
> I am not sure if the file name matches as in profiles.xml we have this with
> mixed upper and lower cases:
>
>  <profile>
>         <filename>ISOcoated_v2_300_eci.icc</filename>
>         <colorspace>CMYK</colorspace>
>         <class>prtr</class>
>         <id>FOGRA39</id>
>         <info>ISO Coated v2 300% (ECI)</info>
>         <checksum>e14f5db955711d914d877df35ad7a1b5</checksum>
>         <version>24000000</version>
>         <url>http://www.color.org</url>
>         <outputcondition>Offset printing, according to ISO 12647-2:2004/Amd 1, OFCOM, paper type 1 or 2 = coated art, 115 g/m2, tone value increase curves A (CMY) and B (K)</outputcondition>
> </profile>
>
> Is there a linux tool to test if the correct profile is part of the pdf?
>
> Any hints?
> TIA
> juh
>

Hi juh,

I guess the problem are the file names of the profiles. On Windows it
doesn't matter if you use upper or lower case letters. AFAIK Linux
handles that differently.
In the end the <filename> entries in
  "[..]/texmf-context/colors/icc/context/colorprofiles.xml"
and the real file names must be "equal" for all OS.

Add

\enabletrackers[backend.pdfx]

to your document to get more info about the profile inclusion.
Not sure if this is the correct tracker though... no time to check, as I
have to make lunch now.

Hope that helps,

Peter
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