IEEE Spectrum
Modulation and Information Hiding in Images
Proceedings of the First International Workshop on Information Hiding
Attacks on Copyright Marking Systems
Proceedings of the Second International Workshop on Information Hiding
Digital Watermarking Robust Against JPEG Compression
ISW '99 Proceedings of the Second International Workshop on Information Security
Simple Collusion-Secure Fingerprinting Schemes for Images
ITCC '00 Proceedings of the The International Conference on Information Technology: Coding and Computing (ITCC'00)
EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
A new digital image watermarking scheme based on Schur decomposition
Multimedia Tools and Applications
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Two robust spatial-domain watermarking algorithms for image copyright protection are described in this paper. The first one is robust against compression, filtering and cropping. Like all published crop-proof algorithms, the one proposed here requires the original image for mark recovery. Robustness against compression and filtering is obtained by using the JPEG algorithm to decide on mark location and magnitude; robustness against cropping is achieved through a repetition code. The second watermarking algorithm uses visual components and is robust against compression, filtering, scaling and moderate rotations.