基于Tabu搜索的彩色图像可逆数据隐藏算法

Reversible data hiding algorithm for color image based on Tabu search

针对当前算法对彩色图像进行可逆隐藏时无法获取最优嵌入数据,存在综合性能差以及加密性能差的问题,提出基于Tabu搜索的彩色图像可逆数据隐藏算法,首先对彩色图像进行加密,确定嵌入的位置,利用Tabu搜索算法提取出最优嵌入秘密数据,在加密图像时进行秘密数据的嵌入,对秘密信息以及图像进行预处理;其次接收者利用自带的密钥对已经嵌入数据的加密图像进行解密,同时对图像进行翻转恢复以及信息提取,实现彩色图像可逆数据隐藏。实验结果表明,所提算法的综合性能高以及加密性较好。

The current algorithm can not obtain the optimal embedded data when reversible hiding color images,which has the problems of low comprehensive performance and low encryption performance.This paper proposes a reversible data hiding algorithm for color image based on Tabu search.Firstly,the algorithm encrypts the color image,determine the position to be embedded,and extracts the optimal embedded secret data by Tabu search algorithm.Then,the secret data is embedded in the encrypted image,and the secret information and image are preprocessed.Secondly,the receiver encrypts the encrypted image with the embedded data,and use the key to decrypt the image,at the same time,the image is flipped and restored,thereby the information is extracted to realize reversible data hiding of color image.Experiment results show that the proposed algorithm has high comprehensive performance and encryption performance.