Re: GRACoL & SWOP Tolernaces
Re: GRACoL & SWOP Tolernaces
- Subject: Re: GRACoL & SWOP Tolernaces
- From: "dpascale" <email@hidden>
- Date: Thu, 24 Apr 2008 19:57:48 -0400
Todd,
I should have said: "application notes" ... I wrote on the subject:
Danny
----- Original Message -----
From: "Todd Shirley" <email@hidden>
To: "'colorsync-users?lists.apple.com' List"
<email@hidden>
Sent: Thursday, April 24, 2008 6:23 PM
Subject: Re: GRACoL & SWOP Tolernaces
Hooray! These look pretty official. Thanks Doug!
Of course I would prefer to see this information on the front page of
SWOP.org and GRACoL.org and have it listed as 'Official Tolerances"
rather than "numeric criteria for a system to be certified", but it's the
best I've seen yet. Why do you think this info is so buried?
-Todd
On Apr 24, 2008, at 6:03 PM, Doug Landon wrote:
http://www.swop.org/certification/PROOFING CERTIFICATION PROCESS_v12.pdf
5. Five (5) numeric criteria must be met in order for a system to be
deemed to have passed
certification and to be labeled as “Certified.”
• If the difference between the characterization data set and the
IT8/7.4 target is an
average delta E ≤1.5 for all patches and a maximum delta E ≤6.0 for at
least 95% of
all patches.
• If the solid patches cyan, magenta, yellow, red green and blue on the
IT/7.4 are
delta E ≤5.0 from the characterization data set.
• If the difference between the characterization data set and patches on
the IT8/7.4
target has white point of a delta L +-2.0, a delta a +-1.0 and a delta b
+-2.0
(excluding florescence).
• If the difference between the 50/40/40 gray balance target and the
characterization
data set has a delta E ≤1.5
• If the difference for each patch in the Ugra/FOGRA Media Wedge
CMYK-EPS
V2.0x and the ADS Proofing Certification Strip between Page 1 of 2 and
Page 2 of
2 (or Page 1 of 3, Page 2 of 3, and Page 3 of 3 if using the 12x17
pages) of the form
is delta E ≤1.5.
--
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