Fig. 6
CIE Lab colourimetric coordinates of pigment samples (SP-1 to SP-4), showing distinct clusters for green (a*<0), red (a*>10), and white (b*>8) hues.
Fig. 6 | npj Heritage Science
CIE Lab colourimetric coordinates of pigment samples (SP-1 to SP-4), showing distinct clusters for green (a*<0), red (a*>10), and white (b*>8) hues.
