Re: Comparing output profiles
Re: Comparing output profiles
- Subject: Re: Comparing output profiles
- From: Roger Breton <email@hidden>
- Date: Sat, 19 Jul 2003 15:19:29 -0400
>
Hi Gang,
>
>
I'm racking my brain trying to figure out how to compare an output profile
>
to the source to see where the printer is going to be limited in terms of
>
gamut. Bruce's book does a great job of describing the process of comparing
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a scanner reference to predicted, but I'm struggling to figure out a way to
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do the same for printer profiles.
>
Compare the 6 outer boundary colors of bouth source and destination in
relative terms using Lab (100C, 100M, 100Y, 100C + 100C, 100M + 100Y, 100M +
100Y and 255 red, 255 green, 255 blue, 255 r + 255 g, and so on, as in the
case of a printer and an RGB source) and calculate DeltaE ab. That will get
you a rough, quick and overall numerical picture of the difference in the
two gamuts.
Roger Breton | Laval, Canada | email@hidden
http://pages.infinit.net/graxx
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