Table 3. Statistical comparison of the linear camera responses obtained with two characterisation methods.

Channel	SSE (μmol)		Wilcoxon signed rank test
	Biexponential	CubicBézier	Statistic	Significance(2-tailed)
Red Canon	4.21×10−4	2.02×10−3	4580	0.751
Green Canon	4.35×10−4	1.75×10−3	4450	0.761
Blue Canon	1.12×10−3	2.61×10−3	4720	0.764
Red Nikon	1.09×10−3	3.40×10−4	326	0.825

Sum of squared errors for the values predicted by the functions fitting the OECF curves (second and third column) and results of the statistical comparison between the camera responses predicted by the two methods.