期刊
SIGNAL PROCESSING
卷 94, 期 -, 页码 118-127出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.sigpro.2013.06.023
关键词
Reversible data hiding; Image encryption; Privacy protection; Histogram shift
资金
- Natural Science Foundation of China [61170234, 60803155]
- Strategic and Piloted Project of CAS [XDA06030601]
- Science and Technology on Information Assurance Laboratory [KJ-13-02]
A novel reversible data hiding technique in encrypted images is presented in this paper. Instead of embedding data in encrypted images directly, some pixels are estimated before encryption so that additional data can be embedded in the estimating errors. A benchmark encryption algorithm (e.g. AES) is applied to the rest pixels of the image and a special encryption scheme is designed to encrypt the estimating errors. Without the encryption key, one cannot get access to the original image. However, provided with the data hiding key only, he can embed in or extract from the encrypted image additional data without knowledge about the original image. Moreover, the data extraction and image recovery are free of errors for all images. Experiments demonstrate the feasibility and efficiency of the proposed method, especially in aspect of embedding rate versus Peak Signal-to-Noise Ratio (PSNR). Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据