摘要
提出一种基于变换的图象加密算法,该算法通过随机化图象信号的相位谱来实现加密,实验结果表明该加密算法具有很好的保密性.
This paper proposed an image encryption algorithm based on transformation. The encryption image is obtained by randomly changing tile phase spectra of the original image. The experiment shows that this system has a good security properties.
出处
《计算机工程》
CAS
CSCD
北大核心
2000年第5期3-4,11,共3页
Computer Engineering
基金
院基金
关键词
全通滤波器
图象处理
图象加密算法
Image encryption
Full-passed filter
Auto-similarity property