Fig. 1.

(a) SFDI instrument, Reflect RS^® (Modulim, Inc., Irvine, California). (b) Colorimeter instrument, Chroma Meter CR-400 (Konica Minolta Sensing, Inc., Tokyo, Japan). (c) Example color images (with zoomed-in representative images), absorption coefficient maps, and reduced scattering maps of ventral forearms and palms from subjects with a range of pigmentation levels as indicated by the colorimetric $L*$ values. $\text{Scale bars}=5\mathrm{cm}$.