基于Karhunen-Loeve变换和最低位替代的图像隐写术

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.

Image Steganography Based on Karhunen-Loeve Transform and Least Bit Substitution

In order to improve the safety performance of information communication for preventing information being stolen, a novel image steganography is proposed in this paper. the minimum bit substitution is constructed 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 has for effectively decrypt the original data; comparing with other mechanism, This technology has a higher capacity and average SNR