Fig. 3.

Wavelength dependences of (a) absorption coefficient ${\mu }_{\mathrm{a}}$ and (b) reduced scattering coefficient ${\mu }_{\mathrm{s}}^{\prime }$ of Asian (i) epidermis, (ii) dermis, and (iii) subcutaneous fat averaged over the 15, 20, and 15 samples, respectively. The shaded area represents the standard deviation.