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Fleck and Forsyth’s
Flesh Detector
The “Finding Naked People” Paper
• Convert RGB to HSI
• Use the intensity component to compute a texture map
   texture = med2 ( | I - med1(I) | )
• If a pixel falls into either of the following ranges,
   it’s a potential skin pixel
   texture < 5, 110 < hue < 150, 20 < saturation < 60
   texture < 5, 130 < hue < 170, 30 < saturation < 130
median filters of
radii 4 and 6
Look for LARGE areas that satisfy this to identify pornography.
See
Transparencies