Re: Color difference equations [was: Color Measurement]
Re: Color difference equations [was: Color Measurement]
- Subject: Re: Color difference equations [was: Color Measurement]
- From: Martin Weberg <email@hidden>
- Date: Thu, 16 Jul 2009 09:30:44 +0200
2009/7/16 Marco Ugolini <email@hidden>:
> To make a long story short, I am not a color scientist, but, within my
> limited understanding of the subject, I think that holding on to a view of
> DeltaE 76 as a formula fit for the "tough" ones amongst us is misleading,
> and has more to do with a misplaced machismo than with its effective
> usefulness when compared to far more discerning, and I think practically
> useful, formulas such as DeltaE 2000.
Agree.
But, how to deal with tolerances?
Does anyone know how the tolerances for the Fogra Media Wedge v3 and
IDEAlliance hard copy proofing were chosen?
If tolerances were chosen using statistics based on dE76 data, maybe
those tolerances are no longer valid for dE00 data.
Like this work:
"Quantitative Analysis of Pictorial Color Image Difference",
co-authored with Yoshikazu Shimamura, TAGA Proceedings, 2001, pp.381-398.
http://cias.rit.edu/~gravure/bob/pdf/2001_QuantitativeAnalsis_TAGA.pdf,
2009-03-04
Is it still applicable using dE00? I think not. It has to be done
again using dE00.
Martin Weberg
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