Color Measurement Accuracy - Reflective mode
Color Measurement Accuracy - Reflective mode
- Subject: Color Measurement Accuracy - Reflective mode
- From: "richardkenward" <email@hidden>
- Date: Mon, 23 Apr 2001 13:53:18 +0100
>
Has anyone ever tested the accuracy of this instrument, critically,
compared
>
to a SpetroLino or an X-Rite DigitalSwatchbook or an X-Rite 528 or a 938,
or
>
some other quality spectrophotometer, and found it to be within some
>
"acceptable" DeltaE range?
>
SNIP
>
>
Roger Breton
>
Quibec Institute of Graphic Communications
This is something that's been bothering me a little, and I have not had an
explanation from X-rite (UK) though I have asked.
When I calibrate my DTP22 (Digital Swatchbook) I note that when later taking
a reading of the white patch that is used for this procedure the readings do
not read equal values. Perhaps I am missing something here...very
likely<G> but the RGB values read 243,245,246. I would have expected if
it was brought back to a calibrated state that these values should be equal.
Can someone please explain and put my mind at ease please.
Many thanks.
Richard
Richard Kenward
Richard Kenward Digital Imaging
+44 (0)1873 890670
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