Re: Lab color is in or out of gamut
Re: Lab color is in or out of gamut
- Subject: Re: Lab color is in or out of gamut
- From: "Bruce J. Lindbloom" <email@hidden>
- Date: Fri, 26 Jul 2002 09:06:25 -0500
Daniel asked:
>
is there an easier was to check if a Lab color is in
>
gamut than using the gamut warning in photoshop ?
Roger Breton replied:
>
You could use a graphical pencil and paper approach. Draw a grid...
(snip)
>
Finally, to check whether a Lab color is in gamut, simply try to plot it on
>
one of your two graphs. If the color plots outside of the clouds of points
>
you've already plotted above then you know it is not in gamut.
But the problem is that if the color plots INSIDE of the clouds of points,
you do not know for sure that it is inside the gamut. It is a 3D problem
that you cannot solve with 2D graphs in the manner you suggest.
--
Bruce J. Lindbloom
email@hidden
http://www.brucelindbloom.com
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