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Skin Color Detection

Skin Color Detection. Jeff Lee. 目的. 用途. 人臉辨識. 用途. Color Space. 黑白. 彩色. Color Space. 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. Skin Color Detection. Color Space. Correlation-coefficient R,G => 95.66%

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Skin Color Detection

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  1. Skin Color Detection Jeff Lee

  2. 目的

  3. 用途 • 人臉辨識

  4. 用途

  5. Color Space 黑白 彩色

  6. Color Space

  7. 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

  8. Skin Color Detection

  9. Color Space • Correlation-coefficient • R,G => 95.66% • R,B => 83.4% • B,G => 92.34%

  10. Color Space Other Color Space RGB

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

  12. 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

  13. YCbCr • Correlation-coefficient • Y,Cb => -28.4% • Y,Cr => 18.68% • Cb,Cr => -74.41%

  14. Skin Color Detection • In Y Cr Cb • Y>80 & • 85 < Cb <135 • 135 < Cr <180

  15. Skin Color Detection

  16. Skin Color Detection • Problem: Light Color

  17. New Method

  18. Original Method New Method

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