Re: Total Dot, Number of Patches & "Reading" Devices
Re: Total Dot, Number of Patches & "Reading" Devices
- Subject: Re: Total Dot, Number of Patches & "Reading" Devices
- From: Marc Levine <email@hidden>
- Date: Fri, 26 Apr 2002 08:47:19 -0400
>
I read sometime back that the number of patches
>
is not actually the number of LUT's - meaning if I only send 300 patches
>
to the press there are not only 300 entries in the LUT. Could/would
>
someone expand on that please.
Measure patch data is used to is the construction of the profile grid. Keep
in mind that a 17x17x17 grid would require something on the order of 5000
patches to construct a table directly form the data. Suffice it to say,
there is some calculation done at the grid-building stage. Once the grid is
built interpolation is then used to describe the color values between the
grid points. More patches should yield a more accurate grid values and more
grid points should give you better interpolations. For example, in
MonacoPROFILER4.0, a user can choose both the number of patches
(530,917,1379,2989) and the size of the grid (17x, 21x, 33x). Any MP4.0
output profile can be reloaded for settings evaluation and/or
reconfiguration - in other words, you can see all the settings for the
profile prior to processing. Tools such as Colorthink and ProfileViewerPro
are invaluable in understanding how your profile is working after it's made.
Hope this helps,
Marc
--
Marc Levine
Technical Manager
Monaco Systems
Sales Division
www.monacosys.com
Sent using the Entourage X Test Drive.
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