7Schwartz C.A new graphical method for encryption of computer data[J].Cryptologia,1991,15(1):43-46.
8Bourbakis N,Alexopoulos C.Picture data encryption using SCAN patterns[J].Pattern Recognition,1992,25(6):567-581.
9Kou C J.Novel image encryption technique and its application in progressive transmission[J].J Electron Imaging,1993,2(4):345-351.
10Chang H K,Liou J L.An image encryption scheme based on quadtree compression scheme[C]∥Hsieh C H,ed.Proceedings of the International Computer Symposium.New York:IEEE Press,2001:230-237.
