Datacolor 45IR User Guide, 5.2014, Version 1.0 (4230-0402M)
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DE’s
The color distance ∆E* describes how close two different colors match. A value of zero (0) means that they
are identical. ∆E*ab color differences in the range of 5 result in considerably perceptible deviations when
reference and sample are close together and observed at the same time.
For measurements of the color distance ∆E* of two different colors, activate
the
Delta Mode
first by selecting the “soft key” with the triangle icon.
Color comparison:
Reference Sample
Now two measurements are made:
1.
Reference measurement
2.
Sample measurement
The color distance ∆E* is displayed with two s i g n i f i c a n t digits to the right of the decimal place.
Additionally the components ∆L*, ∆a* and ∆b* are displayed.
Different formulas for calculating the color distance ∆E* can be
selected as well.
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There are four (4) selections to choose from:
Δ E CIELAB
Δ E CMC
Δ E CIE94
Δ E CIE2000
The latest recommendation by the CIE is DE*2000, and that is what is recommended.
