Instruments and models Vs. Accuracy.
Instruments and models Vs. Accuracy.
- Subject: Instruments and models Vs. Accuracy.
- From: edmund ronald <email@hidden>
- Date: Wed, 14 Sep 2005 01:46:46 +0200
I'm just your average journo, but this discussion about instrument
precision has caught my eye - Is instrument precision really relevant
these days ?
The construction of a behavioural model of a device (a profile in CMS
jargon) implies considerable assumptions about the physics of the
device.
In other words, take 100 measurements of a highly nonlinear device
even with a precise spectro, and you're not gonna get a very good
profile however good the spectro.
So, now please convince me that existing mathematical models of LCD
screens and inks on paper, the size of the measure samples, and the
training and interpolation algorithms in the profiling software are
good enough that a percent here or there in instrument precision or
repeatability actually matters *today*.
My feeling is the instrument is probably the strongest link in the
chain these days.
Oh, and by the way, it looks like MS is preparing to kill the
profiling indystry - have you seen this :
Edmund
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