@article{Guan:2006:EMA, 
title = "Easy matting - A stroke based approach for continuous image matting",
author = "Yu Guan and Wei Chen and Xiao Liang and Zi'ang Ding and Qunsheng Peng",
journal = "Journal of Computer Graphics Forum",
volume = 25,    
number = 3,    
month = sep,     
year = 2006,    
pages = "567--576", 
}