Title :
Chaotic watermarks for embedding in the spatial digital image domain
Author :
Voyatzis, G. ; Pitas, I.
Author_Institution :
Dept. of Inf., Thessaloniki Univ., Greece
Abstract :
Binary (bi-valued) digital signals, which are suitable watermarks for digital images are presented. They are generated by using chaotic dynamical systems that provide sufficient watermark complexity and controlled lowpass characteristics. Watermark detection is performed without resorting to the original image and its reliability is studied. Efficient robustness under lossy compression, lowpass filtering and other image processing can be achieved. Possible watermark detection after geometrical transformations is discussed
Keywords :
chaos; copy protection; data compression; image processing; low-pass filters; security of data; binary digital signals; chaotic dynamical systems; chaotic watermarks; controlled lowpass characteristics; embedding; geometrical transformations; image processing; lossy compression; lowpass filtering; reliability; robustness; spatial digital image domain; watermark complexity; watermark detection; Chaos; Detection algorithms; Digital images; Discrete cosine transforms; Filtering; Image coding; Protection; Robustness; Video compression; Watermarking;
Conference_Titel :
Image Processing, 1998. ICIP 98. Proceedings. 1998 International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
0-8186-8821-1
DOI :
10.1109/ICIP.1998.723411
