X-Rite PhaserMatch Calibrations
X-Rite PhaserMatch Calibrations
- Subject: X-Rite PhaserMatch Calibrations
- From: Joseph Yates <email@hidden>
- Date: Wed, 25 Nov 2009 15:28:34 -1000
- Thread-topic: X-Rite PhaserMatch Calibrations
I have a couple queries for the list that I need assistance with...
First
We have a couple of Xerox Phaser 7760 laser printers that we calibrate with
PhaserMatch 4.0 (from X-Rite).
PhaserMatch has one measure a 140 Patch target with a spectro (we use a
EyeOne revD) and then sends the measured calibration data to the printer.
PhaserMatch also allows one to ³Export² the measurement data (as CIElab
values) as well as ³Average² several measurements before sending this
calibration data to the printer.
I¹m trying to determine how well this calibration ³works² - by measuring a
2nd target after a calibration is sent to the printer and comparing the
CIElab values against the reference values...
So therein lies my problem trying to determine what these expected CIElab
values are.
PhaserMatch during the measurement process actually displays on screen the
actual Lab values but only a picture representation of the expect value.
Both Xerox and X-Rite have been not been of any assistance in helping me
find these reference values for the 140 patch target.
I¹ve search through the application support folder and could only find the
TIF CMYK target which as a last resort I suppose I could extract the Lab
values from but as Photoshop only indicates whole numbers of Lab values as
opposed to the 4 decimal points of the exported PhaserMatch Lab values I
was searching for something more exact.
Can anyone suggest how I might find these reference CIElab values for this
140 Patch CMYK target?
Second-
Once I have these reference values and the exported PhaserMatch values
I¹d like to compare the DeltaE differences between the two sets of values.
I¹ve searched around and found some sites that show what the formula is
but this is way beyond me and so am asking if some generous member of the
list had a pre-existing Excel sheet that I could plug these 2 sets of CIElab
values into. Please contact me off list.
Regards,
Joseph Yates | Pacifica Island Art | Maui, Hawaii
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden