학술논문
Image tamper detection and recovery using differential embedding strategy
Document Type
Conference
Author
Source
Proceedings of 2011 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Communications, Computers and Signal Processing (PacRim), 2011 IEEE Pacific Rim Conference on. :399-402 Aug, 2011
Subject
Language
ISSN
1555-5798
2154-5952
2154-5952
Abstract
In this paper, we proposed a fragile watermarking scheme to authenticate and recover images. The distinguished feature of our method is that the watermark embedding strategy is different for smooth and non-smooth blocks. Specifically, we allocate more space to embed recovery information for non-smooth blocks and less space for smooth blocks. The experimental results show that our scheme performs well on authentication accuracy and precision. In addition, the tampered watermarked image can be recovered fine as well.