Digital images and human vision
Digital images and human vision
Digital watermarking
Vector Space Projections: A Numerical Approach to Signal and Image Processing, Neural Nets, and Optics
A Fragile Watermarking Scheme for Image Authentication with Localization and Recovery
ISMSE '04 Proceedings of the IEEE Sixth International Symposium on Multimedia Software Engineering
Region of Interest Fragile Watermarking for Image Authentication
IMSCCS '06 Proceedings of the First International Multi-Symposiums on Computer and Computational Sciences - Volume 1 (IMSCCS'06) - Volume 01
A survey of watermarking algorithms for image authentication
EURASIP Journal on Applied Signal Processing
A Set Theoretic Framework for Watermarking and Its Application to Semifragile Tamper Detection
IEEE Transactions on Information Forensics and Security
IEEE Transactions on Information Theory
IEEE Transactions on Image Processing
JPEG2000 encoding with perceptual distortion control
IEEE Transactions on Image Processing
A novel reversible image authentication scheme for digital images
Signal Processing
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Multimedia content authentication can be achieved by deriving a fragile content-based signature from a media signal and embedding it robustly back into the signal. The perturbation due to embedding needs to be compensated with mechanisms that lead to producing the original signature. Closed form solutions for compensation are not always feasible. In this paper, we propose two iterative compensation schemes to address such scenarios. The first is based on a set-theoretic approach by using projections onto convex sets (POCS), where signature generation and signal fidelity are modeled as convex constraint sets. The other scheme uses an additive iterative approach used in the cases where the POCS approach is not applicable. Examples of successful image authentication are presented to demonstrate the effectiveness of the proposed schemes over a range of watermark-embedding robustness. A comparison with the closed-form compensation scheme, when feasible, is also presented.