Re: Whitepoint problems, ICC-User feedback taskforce
Re: Whitepoint problems, ICC-User feedback taskforce
- Subject: Re: Whitepoint problems, ICC-User feedback taskforce
- From: Jan-Peter Homann <email@hidden>
- Date: Mon, 23 Apr 2001 17:35:15 +0200
Hello list. hello Mr. Brues and Mr. Rodriguez
Since the last days, there is a big discussion about whitepoint problems on the
colorsync-mailing list (like every 6 months in the last three years..)
There are guides to use only the Adobe CMM or to edit the output-profiles. The Adobe
CMM can not be used in other applications and to edit output-profiles can be only a
short-time solution. As I mentioned in my last mail, we need a more robust
ICC-Standard and tools for proofing CMMs and profiles against this standard.
The only solution I see, are a reference CMM and reference-profiles by the ICC
itself.
Profiles and Profiling applications would be tested with the reference CMM
A CMM would be tested with the reference.profiles.
The testcriteria for the CMMs should be:
Lab 100/0/0 should always result to CMYK 0/0/0/0 and RGB 255/255/255 with the
reference-profiles and perc/relCol/Sat Intents
CMYK 0,01/0/0/0 or RGB 254,99/255/255 would fail the test.
Same results are necessary for every RGB- or CMYK-profiles with the reference CMM
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So all colormanagement-users:
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If you don4t want have whitepoint-problems anymore, vote for a reference CMM and
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reference-profiles at the ICC User feedback taskforce.
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for europe: mailto:email@hidden
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for US: mailto:email@hidden
If we - the users - are not insiting for a more robust ICC-standard and tools for
quality-control, we will not get robust workflows for the daily practice. So mail
all your anger to the e-mail accounts above, instead only inventing workarounds for
the weak ICC-standard.
And a question to Mr. Brues and Mr. Rodriguez: What are the plans from the ICC to
solve the whitepoint-problems ? Please give us an actual statement on the
colorsync-mailinglist.
best regards
Jan-Peter Homann
mailto:email@hidden
http://www.colormanagement.de