Table 6.

Euclidean distance d and its standard deviation ${\sigma }_d$ between the averaged pixel values of the dye- and pigment-based print color targets. The pixel values of both type print targets were transformed into the pigment-based PCA coordinate system. The distances were calculated across the first 20 PCs.

	Red		Green		Blue		Black
	d	${\sigma }_d$	d	${\sigma }_d$	d	${\sigma }_d$	d	${\sigma }_d$
Archival Velvet	1.13	0.11	6.19	0.08	2.42	0.08	10.71	0.08
PRO Pearl	1.2	0.12	6.25	0.08	2.42	0.12	9.88	0.12
Cotton Textured	1.45	0.18	5.7	0.19	2.03	0.1397	9.55	0.11