Hierarchical ownership and deterministic watermarking of digital images via polynomial interpolation

G. Boato, F.G.B. De Natale, C. Fontanari, F. Melgani
2006 Signal processing. Image communication  
This paper presents a novel method for the secure management of digital images formulated within the mathematical theory of polynomial interpolation. As main innovative features, our approach is based on a hierarchical joint ownership of the image by a trusted layered authority and on a deterministic watermarking procedure, embedding a short meaningful or random signature into the image. Experimental results show that the inserted signature can almost always be fully recovered even in presence
more » ... f a reasonable amount of image degradation due to image processing operators, such as filtering, geometric distortions and compression. r
doi:10.1016/j.image.2006.03.008 fatcat:4yo4lodnkbdhhiazbdbh6usfam