Computer Engineering and Applications ›› 2018, Vol. 54 ›› Issue (14): 115-119.

### High fidelity reversible data hiding algorithm based on SVD compression

LI Tianxue, WANG Jianping, ZHANG Minqing, KONG Yongjun

1. Key Laboratory of Network and Information Security under the Armed Police Force, Department of Electronic Technology, Engineering University of the Chinese Armed Police Force, Xi’an 710086, China
• Online:2018-07-15 Published:2018-08-06

### 基于SVD压缩的高保真可逆信息隐藏算法

1. 武警工程大学 电子技术系 网络与信息安全武警部队重点实验室，西安 710086

Abstract: In order to solve the problem of distortion caused by embedding the secret data on the original carrier image, high-fidelity reversible information hiding algorithm using Singular Value Decomposition（SVD） prediction pixel is proposed in this paper. Firstly, the original carrier is divided into gray and white layers. Pixels in the gray layer are selected as the target pixels, and the white pixels in the field are used as the reference pixels. Then, the neighborhood matrix is constructed using these reference pixels, the matrix is processed using SVD, and is restored with a large singular value, the target pixel is predicted by its average. Finally, the secret data is embedded by the extended prediction error. Extensive experiments have shown that the proposed algorithm effectively reduces the embedded distortion of the carrier.