Table 7. Timing for the most time-consuming functions of colordistance.

	Function	Coefficient	R2	p-value
Loading images	loadImage	0.24 s pixels−6	0.97	<0.01
Converting from RGB to CIE Lab	convertColorSpace	57.3 s pixels−6	0.99	<0.01
Histogram binning	getLabHist	1.43 s pixels−6	0.97	<0.01
k-means binning	getKMeanColors	25.4 s pixels−6	0.97	<0.01

Note:

A total of five runs of each analysis were performed on an early 2015 MacBook Pro with a 2.7 GHz Intel Core i5 processor.