1. Color image noise removal algorithm utilizing hybrid vector filtering
Authors: Dung Dang,Wenbin Luo
Source: AEU - International Journal of Electronics and Communications
report: Kuo Hua Wang
Date: 2008/4/23

2. Outline Introduction Vector directional noise detector
Vector hybrid filtering
Results
Conclusions

3. Introduction
Noisy censor
or noisy channel
noise removal
algorithm

4. Vector directional noise detector
( i, j )
Vector angle function:
k=2

5. Vector hybrid filtering
( i-s, j-t )
θ1 , θ2 , θ3 ,….. θ13 ,…………, θ24 , θ25
k=2
ω1 , ω2 , ω3 ,….. ω13 ,…………, ω24 , ω25

6. Vector hybrid filtering
k=2
= (172, 124, 65)
= (156, 107, 51)

7. Results

8. Results

9. Conclusions
This paper presented an efficient two-stage color image impulse noise removal algorithm
Proposed method provides a significant improvement over several other well-known algorithms