摘要
为了提高信息通信安全性能,防止信息被窃取,提出了一种新颖的图像隐写术。采用Karhunen-Loeve变换压缩数据,构造其最低位替代加密数据,并在载体图像内对信息进行编码,其压缩过程用于去除冗余性,同时还设计了编码到一个级别的像素矩阵,由最低位替换的方式进一步实施。实验结果表明,该算法效率高,并能对原始数据进行有效的解密;且与其他机制相比,所提出的技术具有更高的容量和平均信噪比。
In order to improve the safety performance of infi^rmation communication for preventing information being stolen, a novel image steganography is proposed in this paper, the minimum bit substitution is eonstructed by using Karhunen-Loeve transform compression data to encrypt data in the carrier and encode the image information for removing redundancy during the compression process; and a matrix of pixel levels is designed from the lowest replace bit further implementation approach. Experimental results show that this algorithm can effectively deerypt the original data. Comparing with other mechanism, this technology has a higher capacity and average SNR.
出处
《电视技术》
北大核心
2015年第2期80-84,共5页
Video Engineering
基金
湖南省自然科学基金项目(12JJ4051)
