摘要
本文提出了一种新的基于码分多址技术的图像保密系统（称为多址隐像术），它把数幅秘密图像的信息加密后隐藏在另一幅可公开的图像中，而不同接收者可恢复出相应的秘密图像。试验结果表明：恢复密图的ＰＳＮＲ值可达２１ｄＢ。
A novel kind of image cryptosystem image hiding cryptosystem of image division multiple access is proposed in this paper We encrypt key information of several secret images and then hide them into another image,which can be publicly accessed,after receivers get the public image,each receiver can restore corresponding secret image Ours experiments have proved that the PSNR of the restored secret image can be as high as 21dB,indicating our restored secret image has satisfied quality
出处
《通信学报》
EI
CSCD
北大核心
1999年第12期59-64,共6页
Journal on Communications
基金
国家自然科学基金! 批准号:69882002
69772035
关键词
码分多址
多址隐像
图像保密系统
image hiding cryptosystem,image division multiple access,Hadarmard matrix
