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CIE94, History, Use, and Performance

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Encyclopedia of Color Science and Technology

Synonyms

CIE 1994 (ΔL* ΔC* ab ΔH* ab); ΔE* 94

Definition

The CIE94 color-difference formula [1] was developed by the CIE Technical Committee 1–29 “Industrial Color Difference Evaluation” chaired by Dr. D.H. Alman (USA). CIE94 is a CIELAB-based color-difference formula where CIELAB lightness, chroma, and hue differences are appropriately weighted by very simple “weighting functions” correcting CIELAB’s lack of visual uniformity, as well as by “parametric factors” accounting for the influence of illuminating/viewing conditions in color-difference evaluation. CIE94 may be considered a simplified version of the CMC color-difference formula [2], as well as a predecessor of currently CIE-recommended color-difference formula, the joint ISO/CIE standard CIEDE2000 [3, 4].

Overview

In 1976, CIE recommended the CIELUV and CIELAB color spaces with their corresponding color-difference formulas, defined as Euclidean distances in such spaces. These two color spaces are only approximately uniform, and...

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References

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Melgosa, M. (2015). CIE94, History, Use, and Performance. In: Luo, R. (eds) Encyclopedia of Color Science and Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27851-8_13-1

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  • DOI: https://doi.org/10.1007/978-3-642-27851-8_13-1

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