1. Sharing a secret two-tone image in two gray-level images;Chang,2005
2. Owner–customer right protection mechanism using a watermarking scheme and a watermarking protocol;Chen;Pattern Recognition,2006
3. Image encryption by (n,n) random grids;Chen,2008
4. Visual secret sharing by random grids revisited;Chen;Pattern Recognition,2009
5. Multiple watermarking based on visual secret sharing;Chen;International Journal of Innovative Computing Information and Control,2008