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detect_skin

Arguments:

• 0<=tolerance<=1,_skin_x,_skin_y,_skin_radius>=0

Description:

Detect skin in selected color images and output an appartenance probability map.

Detection is performed using CbCr chromaticity data of skin pixels.
If arguments skin_x, skin_y and skin_radius are provided, skin pixels are learnt
from the sample pixels inside the circle located at (skin_x,'skin_y') with radius skin_radius.

Default values:

tolerance=0.5 and skin_x=skiny=radius=-1.