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BYK-Gardner WEBseminar:
Color difference equations for solid and effect colors - Which method is the best?


A loaded question with not one answer!


Color control has historically been done by visual inspection of samples and comparison to a standard with the disadvantages of being subjective. For more objectivity, the internationally agreed upon CIELAB system is used since 1976. Meanwhile, several modifications of the CIELAB color equation like DE2000 were introduced for solid colors. For effect colors, the development even goes one step further with the introduction of the DE DIN6175. The goal of all modifications was to improve the correlation between visual perception and instrumentally measured values.


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  • CIELAB color space
    • What is the meaning of ΔL*, Δa*, Δb*, ΔC*, ΔH*?
    • ΔE*: Can a single number be used for all colors?
  • How to improve the visual correlation with weighted color difference methods?
  • Weighted color differences methods for solid colors: CIEDE2000
  • Weighted color difference methods for metallic and effect colors: ΔEDIN 6175


New dates for 2021 will come in December 2020.

WEBseminar Recordings

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WEBseminar Recording
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