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How to measure color change?

To quantify color change, take the original L*a*b* values of a sample, and reread after exposure or processing. Compute the difference as 1/2(Emut1 Emut2). The larger the value of ΔE, the more obvious the change of color is, which can be used in quality or stability testing.


Justin Lee

Senior Optical Engineer

15+ years in color measurement R&D, Holds 8 patents in spectrophotometry
This article is edited by Justin Lee, the website content writer of 3nh, who has 15 years working experience in the color management industry and often discusses with colleagues in R&D, marketing and production departments about the professional knowledge and application of color measurement devices, and has a deep understanding of the industry and products.
Please feel free to contact me to discuss more about your color measurement projects
service@3nh.com.

Justin Lee - Senior Optical Engineer

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