What is the difference between LUV(UVW) and XYZ color space?

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What is the difference between LUV(UVW) and XYZ color space?



Answer:

the 1931 CIE x,y Chromaticity Diagram (or xyYdiagram) was inadequate because the two-dimensional diagram failed to give a uniformly-spaced visual representation of what is actually a three-dimensional color space.
CIE proposed modifying the u,vdiagram and supplying new (u',v') values. This was done by multiplying the v values by 1.5.
While the representation is not perfect (nor can it ever be), the u',v' diagram offers a much better visual uniformity. This can be seen by comparing the following illustration of the u',v' diagram with the x,y diagram at the top of this section
The lines in theu',v' diagram represent the same as in the x,y illustration, only here we can see the lines are more nearly uniform throughout the diagram.

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