Abstract
Block-wise dependency is recognized as a key requirement in fragile watermarking schemes to thwart the vector quantization (VQ) attack. It has also been observed that deterministic dependency is still susceptible to transplantation at- tack or even simple cover-up attack. In this work, a new fragile watermarking scheme exploiting non-deterministic dependency is proposed. To watermark the original image, each pixel is adjusted according to the consistency between a key-dependent binary watermark bit, the information from the pixel itself and the non-deterministic secret dependency information calculated from a neighborhood centered at that pixel. Localization resolution is enhanced with a post-processing operation on the output difference map.
Original language | English |
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Title of host publication | Proceedings of the 17th International Conference on Pattern Recognition, ICPR 2004 |
Editors | J. Kittler, M. Petrou, M. Nixon |
Pages | 849-852 |
Number of pages | 4 |
Volume | 4 |
DOIs | |
Publication status | Published - 2004 |
Event | Proceedings of the 17th International Conference on Pattern Recognition, ICPR 2004 - Cambridge, United Kingdom Duration: 23 Aug 2004 → 26 Aug 2004 |
Conference
Conference | Proceedings of the 17th International Conference on Pattern Recognition, ICPR 2004 |
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Country | United Kingdom |
City | Cambridge |
Period | 23/08/04 → 26/08/04 |