Re: colorsync-users digest, Vol 3 #1026 - 6 msgs
Re: colorsync-users digest, Vol 3 #1026 - 6 msgs
- Subject: Re: colorsync-users digest, Vol 3 #1026 - 6 msgs
- From: email@hidden
- Date: Thu, 30 Oct 2003 06:56:24 EST
In a message dated 10/29/03 8:45:15 AM, email@hidden writes:
>
>
Viewing the gamut of each in ColorSync Utility, the 8-bit looks
>
alarmingly jagged, especially in the shadow area. The 16-bit
>
re-export looks nice and smooth in contrast. When I load the 16-bit
>
profile into WasatchRip as my source, I get slightly improved density
>
in the shadow areas- but it's a modest change. Still, this
>
intrigues me- are there strong advantages for a 16 bit profile?
>
What 8 versus 16 bit actually means in a profile, is, given the defined
(which are not actually the measured) gridpoints, to how many decimal places
should
we calculate the interpolation? For example, between 76 and 79, do we want
the 50 percent point to be 77.5 or 77.500? I don't think the extra overhead of
a
16 bit profile is a big deal on modern machines, but neither should you
expect this more detailed math to make a real difference in colors. What could
make
more difference is a higher grid count, so that numbers you interpolate
between are closer together, but remember that these points don't represent
measured values, so there is already interpolation used in defining the
gridpoints
too...
C. David Tobie
Product Technology Manager
ColorVision, Inc.
email@hidden
www.colorvision.com
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