Re: Another quote from Roy Berns on metamerism-color inconstancy
Re: Another quote from Roy Berns on metamerism-color inconstancy
- Subject: Re: Another quote from Roy Berns on metamerism-color inconstancy
- From: Terence Wyse <email@hidden>
- Date: Thu, 17 Jun 2010 18:09:09 -0400
On Jun 17, 2010, at 5:56 PM, Marco Ugolini wrote:
> The quote DOES mention "a SINGLE SAMPLE viewed under multiple illuminants".
> So, it's ONE The fact that we are dealing with one single sample/specimen IS
> the whole point of the color inconstancy concept.
Just to play devil's advocate then, what is the definition of "single sample"?
For example, what if I took a neutral R=G=B image, separated it multiple times using different levels of GCR such that under "D50" they would all appear to be perfectly neutral. I then take take them and either print them on a single press sheet or on a single inkjet proof/print. I take this single sheet/print and look at it under different illuminates(?) and lo-and-behold these different separations printed using the same inks on the same substrate take on different color casts due to the level of GCR in each image.
Would this be color inconstancy or metameric failure?
Terry
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