Figure 1
From: Chip-based adaptive skin color detection using trajectory constraints on hue
The trajectories in HSV color space by adjusting R-G-B color individually; (a) R = 255,G = 250,B = 0 ~ 255, (b) R = 146,G = 115,B = 0 ~ 115, (c) R = 240,G = 20 ~ 240,B = 20, (d) R = 170,G = 100 ~ 170,B = 100, (e) R = 52 ~ 255,G = 52,B = 12, (f) R = 92 ~ 255,G = 92,B = 60.