We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Lossless data hiding algorithm for encrypted images with high capacity.
- Authors
Zheng, Shuli; Li, Dandan; Hu, Donghui; Ye, Dengpan; Wang, Lina; Wang, Jinwei
- Abstract
In this paper, a novel reversible data hiding algorithm for encrypted images is proposed. In encryption phase, chaotic sequence is applied to encrypt the original image. Then the least significant bits (LSBs) of pixels in encrypted image are losslessly compressed to leave place for secret data. With auxiliary bit stream, the lossless compression is realized by the Hamming distance calculation between the LSB stream and auxiliary stream. At receiving terminal, the operation is flexible, that is, it meets the requirement of separation. With the decryption key, a receiver can get access to the marked decrypted image which is similar to the original one. With data-hiding key, the receiver can successfully extract secret data from the marked encrypted image. With both keys, the receiver can get secret data and the exactly original image. Compared with existing methods, experiments show the feasibility and efficiency of the proposed method, especially in aspect of embedding capacity, embedding quality and error-free recovery with increasing payload.
- Subjects
IMAGE encryption; LOSSLESS data compression; COMPUTER algorithms; INFORMATION technology security; DATA security
- Publication
Multimedia Tools & Applications, 2016, Vol 75, Issue 21, p13765
- ISSN
1380-7501
- Publication type
Article
- DOI
10.1007/s11042-015-2920-y