Fig. 3

Spectral reflectance differences of female and male skin for the eight ethnic groups: CA (Caucasian), CN (Chinese), SA (South Asian - Pakistani), AF (African), IQ (Middle Eastern - Iraqi), TH (Southeast Asian - Thai), JP (Japanese), AB (Middle Eastern - Arabian). The solid lines represent the average spectral reflectance for female (blue line) and male (orange line), and the shaded areas denote ±2 standard error.