1. More on natural image matting
Digital Visual Effects
Yung-Yu Chuang
with slides by

2. A closed form solution to natural alpha matting, CVPR 2006
With slides from Prof. Hwann-Tzong Chen

3. Linear relation (grayscale for now)

4. Linear relation

5. Optimization

6. Optimization

7. Optimization

8. Optimization

9. Optimization

10. Optimization

11. Optimization

12. The inverse

13. Optimization

14. Optimization

15. A global sampling method for alpha matting, CVPR 2011

16. Idea
input
robust
improved
color
shared
global

17. Search space

18. Propagation and random search

21. KNN Matting, CVPR 2012

22. Nonlocal principle

23. Nonlocal principle for mattes

24. Kernels and features

25. KNN matting

26. Results

27. Results

28. Results