Skin Color Detection Jeff Lee 2019/1/17

目的 2019/1/17

用途 人臉辨識 2019/1/17

用途 2019/1/17

Color Space 黑白 彩色 2019/1/17

Color Space 2019/1/17

Skin Color Detection R > 95 & G > 40 & B > 20 & Max(R,G,B) – min(R,G,B)>15 & Abs(R – G) >15 & R > G & R >B 2019/1/17

Skin Color Detection 2019/1/17

Color Space Correlation-coefficient R,G => 95.66% R,B => 83.4% B,G => 92.34% 2019/1/17

Color Space Other Color Space RGB 2019/1/17

Color Space CIE YUV Other CIEXYZ · CIELAB · CIECAM02 · CIELUV · Yuv · CIEUVW · CIE RGB YUV YUV (PAL) · YDbDr (SECAM) · YIQ (NTSC) · YCbCr · YPbPr · xvYCC Other LMS · HSL, HSV · CMYK ·… … 2019/1/17

YCbCr Y = 0.299R + 0.587G + 0.114B U = -0.147R - 0.289G + 0.436B V = 0.615R - 0.515G - 0.100B R = Y + 1.14V G = Y - 0.39U - 0.58V B = Y + 2.03U 2019/1/17

YCbCr Correlation-coefficient Y,Cb => -28.4% Y,Cr => 18.68% 2019/1/17

Skin Color Detection In Y Cr Cb Y>80 & 85 < Cb <135 2019/1/17

Skin Color Detection 2019/1/17

Skin Color Detection Problem: Light Color 2019/1/17

New Method 2019/1/17

Original Method New Method 2019/1/17