Digital Image WaterMayking Technique Based on Fractal Coding
Zhang Min-rui, Ming An-hua · 2004
Digital watermayking technique is one of the effective solutions to protect the copyrights of multimedia data including satellite and remote sensing images. This paper gives the basic conception and main features of digital watermayking technique, describes the conventional fractal image coding method using local iterated function systems, sumMayizes and classifies the existing digital image watermayking approaches based on fractal coding, one kind of which changed the fractal coding parameters, another kind of which utilized the image self-similarity, the last kind of which combined fractal and other theories, to insert the watermayks. Finally some useful suggestions are given for further development of fractal digital image watermayking techniques.