1. Compression and Security of Surveillance Videos Exercise 7 – Face Detection M993010115 陳威佑

2. Flow Chart Skin color detection Denoise Lips color detection Image Face check Output Image

3. Skin Color Detection R > G > B, R-G > 15, R > 95, G > 40, B > 20

4. Denoise

5. Lips Color Detection

6. Face Check 7 faces detected

7. Other Results 1 faces detected2 faces detected3 faces detected

8. Conclusions  The color of lips is sensitive to the luminance  It’s impossible to detect if the lips were blocked by other object  Hard to detect profile

9. The End