Re: Number of Colors Delta Es
Re: Number of Colors Delta Es
- Subject: Re: Number of Colors Delta Es
- From: joel <email@hidden>
- Date: Fri, 23 Aug 2002 16:42:51 -0500
Date: Fri, 23 Aug 2002 10:50:18 -0500
Subject: Re: Number of Colors
From: "Bruce J. Lindbloom" <email@hidden>
To: ColorSync User List <email@hidden>
CC: <email@hidden>
Robin Myers wrote:
A much better metric is the volume of the gamut in L*a*b* units. This is
a closer analog to the number of discernible colors (I'll skip the
details of its limitations) a device can produce. I think there are some
profile analysis programs that calculate this number. A larger volume is
a larger gamut with more discernible colors.
One of these profile analysis programs that I was involved with calculated
these volumes:
Newspaper press: 79,000 cubic delta E units
Matchprint proof: 343,000 cubic delta E units
sRGB: 835,000 cubic delta E units
Lab gamut: 2,381,000 cubic delta E units
Of course, your mileage may vary, and there are limitations as Robin pointed
out, but these might be useful points of reference nevertheless.
--
Bruce J. Lindbloom
email@hidden
http://www.brucelindbloom.com
--
joel johnstone
designtype
328 William Avenue
Winnipeg Manitoba Canada
R3A 0H7 Phone (204) 943 7596
http://www.designtype.net
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