Definition: | the difference between two colour stimuli, defined as the Euclidean distance between the points representing them in the L* u* v* space and calculated as equation
ΔE*uv = [(ΔL*)2 + (Δu*)2 + (Δv*)2]½
NOTE – The CIE 1976 u, v hue-difference may be calculated as follows:
CIE 1976 u, v hue-difference: ΔH*uv = [(ΔE*uv)2 − (ΔL*)2 − (ΔC*uv)2]½
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