May 5, 2022
Methods for Measuring Color
Spectrophotometers measure the visible spectrum
- CIELab – Observer/Light Source/Object
- Color space is defined by the CIE, based on one channel for Luminance (lightness) (L) and two-color channels (a and b).
- Delta E – Metric defining single color difference: Spot Color
- ΔE - (Delta E, dE)
- Delta E 2000 current standard
- E-Factor – Metric Page/Image difference: Process Color
- Cumulative Relative Frequency(CRF) of the 95th percentile
- Quality of a color match
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