Certified Proof Manual - image2output - Support

Comparing Single Colors
Step 4: Measure and Compare
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Fig. 5-3
‘Add Color’ and ‘Add Spot Color’ Dialogs
Step 4: Measure and Compare
1. In the SINGLE PATCH MEASUREMENT dialog (see Fig. 5-4), select the
color to which the measured color should be compared:
• Click on one of the colors listed on the left. – or
• Enable the option FIND BEST MATCHING COLOR to use the color
which comes closest to the Lab values you are measuring.
2. Click on the START MEASUREMENT button.
3. If the spectrophotometer requires a white calibration, you are requested
to place the instrument on its base. The white calibration is
then performed automatically.
4. Measure your color sample.
The nearest color is selected automatically (if FIND BEST MATCHING
COLOR is enabled) and the measured color is displayed both visually
(color box on the right) and numerically (under ACTUAL VALUES).
The deviations on the L, a and b axes are also indicated numerically.
A color box to the right of the numeric value indicates the direction of
the color shift.
5. The overall color deviation is also displayed. Select the delta E formula
to be used for calculating it.
6. Click the button if you want to add the measured color to the list
of reference colors (see Step 3).
7. You can directly measure additional colors (see step 4).
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