DIN99 Delta E

The Din99 Delta E is an improved color difference metric, but rather than being based directly on L*a*b* delta E, it uses a modified L*a*b* space called DIN99 Lab, and is a simple Euclidean difference in that space.

Since it is based on L*a*b* space, a reference white needs to be chosen to compute this Readout value.

Details of white point configuration.

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