Table 3. Mean and standard deviation of colour differences (Δ∗Eab) within each stimulus group.

Stimulus group	Experiment 1	Experiment 2
	Original	1 to All	57 to All	169 to All
ΔEab mean	7.89	0.68	0.37	0.45
ΔEab standard deviation	4.83	0.28	0.26	0.20