In a message dated Tue, 30 Aug 2005 12:34:28, Rolf Gierling wrote:
Marco Ugolini wrote:
...at RIT's Munsell Color Science Lab, they strongly recommend the
use of Delta E 2000 and tend to dismiss the usefulness of older
versions of Delta E.
Look at it from another point of view. The european/german
organisations FOGRA, bvdm and ECI, which are mainly involved into the
research of all that Process Standard things and the resulting ISO
12647 worldwide norms, have a big problem:
The Delta E ab is the only one that can be used in juristic way to
judge color consistancy. It is a fact that Delta E 2000 or CMC or
something like that is more sophisticated, but no court in the world
would accept it, because they are not fixed in an ISO norm.
Thank you for the clarification, Rolf.
From what you say, it appears to me that for private use (such as
photo-quality inkjet prints), Delta E 2000 can be seen as the better
methodology, while Delta E ab might be advisable when proofing to
something like SWOP, due to the lack of ISO standardization for Delta
E 2000. Is that a fair statement?
Yes, this is it. And don't forget the visual judgement.
