An interpolation-based watermarking scheme
Signal Processing
Robust zero-watermarking scheme using local invariant keypoints
MUSP'07 Proceedings of the 7th WSEAS International Conference on Multimedia Systems & Signal Processing
A feature-based robust digital image watermarking against geometric attacks
Image and Vision Computing
A Bootstrap Attack on Digital Watermarks in the Frequency Domain
ICICS '08 Proceedings of the 10th International Conference on Information and Communications Security
A robust image watermarking algorithm using SVR detection
Expert Systems with Applications: An International Journal
Quadruple Watermarking against Geometrical Attacks Based on Searching for Vertexes
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Robust Watermarking Scheme Applied to Radiological Medical Images
IEICE - Transactions on Information and Systems
Robust image watermarking against local geometric attacks using multiscale block matching method
Journal of Visual Communication and Image Representation
WAV'09 Proceedings of the 3rd WSEAS international symposium on Wavelets theory and applications in applied mathematics, signal processing & modern science
IWDW '09 Proceedings of the 8th International Workshop on Digital Watermarking
Invariant image watermarking using multi-scale Harris detector and wavelet moments
Computers and Electrical Engineering
Robust Watermarking in DoG Scale Space Using a Multi-scale JND Model
PCM '09 Proceedings of the 10th Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
RST-Invariant Semi-fragile Image Authentication Based on DWT-Coefficient Quantization
PCM '09 Proceedings of the 10th Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
A geometrical robust image data hiding scheme using FCA-based resynchronization
IH'07 Proceedings of the 9th international conference on Information hiding
Geometrically invariant image watermarking in the DWT domain
WISA'07 Proceedings of the 8th international conference on Information security applications
Rotation invariant watermark embedding based on scale-adapted characteristic regions
Information Sciences: an International Journal
The RST invariant digital image watermarking using Radon transforms and complex moments
Digital Signal Processing
An integrated authentication framework based on multi-tier biometrics
International Journal of Biometrics
Loss tolerant video streaming authentication in heterogeneous wireless networks
Computer Communications
A new robust digital watermarking algorithm based on genetic algorithms and neural networks
ACS'11 Proceedings of the 11th WSEAS international conference on Applied computer science
Robust localized image watermarking based on invariant regions
Digital Signal Processing
A robust watermarking algorithm using attack pattern analysis
ACIVS'06 Proceedings of the 8th international conference on Advanced Concepts For Intelligent Vision Systems
A robust zero-watermark copyright protection scheme based on DWT and image normalization
PSIVT'11 Proceedings of the 5th Pacific Rim conference on Advances in Image and Video Technology - Volume Part II
Geometrically invariant image watermarking using Polar Harmonic Transforms
Information Sciences: an International Journal
A new digital image watermarking scheme based on Schur decomposition
Multimedia Tools and Applications
Spread spectrum-based multi-bit watermarking for free-view video
IWDW'11 Proceedings of the 10th international conference on Digital-Forensics and Watermarking
Geometric attack resistant image watermarking based on MSER
Frontiers of Computer Science: Selected Publications from Chinese Universities
IWDW'12 Proceedings of the 11th international conference on Digital Forensics and Watermaking
Information Sciences: an International Journal
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In this paper, we present two watermarking approaches that are robust to geometric distortions. The first approach is based on image normalization, in which both watermark embedding and extraction are carried out with respect to an image normalized to meet a set of predefined moment criteria. We propose a new normalization procedure, which is invariant to affine transform attacks. The resulting watermarking scheme is suitable for public watermarking applications, where the original image is not available for watermark extraction. The second approach is based on a watermark resynchronization scheme aimed to alleviate the effects of random bending attacks. In this scheme, a deformable mesh is used to correct the distortion caused by the attack. The watermark is then extracted from the corrected image. In contrast to the first scheme, the latter is suitable for private watermarking applications, where the original image is necessary for watermark detection. In both schemes, we employ a direct-sequence code division multiple access approach to embed a multibit watermark in the discrete cosine transform domain of the image. Numerical experiments demonstrate that the proposed watermarking schemes are robust to a wide range of geometric attacks.