Name
Title | ||
|---|---|---|
A digital authentication watermarking scheme for JPEG images with superior localization and security |
Abstract | ||
|---|---|---|
The drawbacks of the current authentication watermarking schemes for JPEG images, which are inferior localization and the
security flaws, are firstly analyzed in this paper. Then, two counterferiting attacks are conducted on them. To overcome these
drawbacks, a new digital authentication watermarking scheme for JPEG images with superior localization and security is proposed.
Moreover, the probabilities of tamper detection and false detection are deduced under region tampering and collage attack
separately. For each image block, the proposed scheme keeps four middle frequency points fixed to embed the watermark, and
utilizes the rest of the DCT coefficients to generate 4 bits of watermark information. During the embedding process, each
watermark bit is embedded in another image block that is selected by its corresponding secret key. Since four blocks are randomly
selected for the watermark embedding of each block, the non-deterministic dependence among the image blocks is established
so as to resist collage attack completely. At the receiver, according to judging of the extracted 4 bits of watermark information
and the corresponding 9-neighbourhood system, the proposed scheme could discriminate whether the image block is tampered or
not. Owing to the diminishing of false detection and the holding of tamper detection, we improve the accuracy of localization
in the authentication process. Theoretic analysis and simulation results have proved that the proposed algorithm not only
has superior localization, but also enhances the systematic security obviously. |
Year | DOI | Venue |
|---|---|---|
2007 | 10.1007/s11432-007-0024-7 | Science in China Series F: Information Sciences |
Keywords | Field | DocType |
collage attack,fragile watermarking,jpeg compression,localization accuracy | False detection,Computer vision,Digital watermarking,Authentication,Discrete cosine transform,Watermark,JPEG,Embedding process,Artificial intelligence,Mathematics,Watermark embedding | Journal |
Volume | Issue | ISSN |
50 | 3 | 18622836 |
Citations | PageRank | References |
3 | 0.41 | 1 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Miao Yu | 1 | 3 | 0.41 |
| Hongjie He | 2 | 238 | 20.34 |
| Jiashu Zhang | 3 | 1122 | 75.03 |