Color Difference
Adams' color spaces rely on the Munsell value for lightness. Defining chromatic valence components and, we can determine the difference between two colors as:
where VJ is the Newhall-Nickerson-Judd value function and the 0.4 factor is incorporated to better make differences in WX and WZ perceptually correspond to one another.
In chromatic value color spaces, the chromaticity components are and . The difference is:
where the Munsell-Sloan-Godlove value function is applied to the tristimulus value indicated in the subscript. (Note that the two spaces use different lightness approximations.)
Read more about this topic: Adams Chromatic Valence Color Space
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