Title :
Applications of toral automorphisms in image watermarking
Author :
Voyatzis, G. ; Pitas, I.
Author_Institution :
Dept. of Inf., Thessaloniki Univ., Greece
Abstract :
Digital watermarking methods have been proposed for various purposes and especially for copyright protection of multimedia data. The digital watermark is embedded in a digital signal or an image and must be unrecognizable by unauthorized persons and detectable only by the legal copyright owner. We use toral automorphisms as chaotic 2-D integer vector generators in order to manipulate digital image watermarking. We propose also an embedding algorithm which provides robustness under filtering and compression
Keywords :
chaos; copyright; data compression; filtering theory; image reconstruction; image segmentation; multimedia systems; signal detection; chaotic 2D integer vector generators; compression; copyright protection; digital image watermarking; digital signal; digital watermarking methods; filtering; image region; multimedia data; robust embedding algorithm; signal detection; toral automorphisms; watermark reconstruction; Chaos; Copyright protection; Digital images; Filtering; Image coding; Image processing; Informatics; Law; Robustness; Watermarking;
Conference_Titel :
Image Processing, 1996. Proceedings., International Conference on
Conference_Location :
Lausanne
Print_ISBN :
0-7803-3259-8
DOI :
10.1109/ICIP.1996.560753
