DocumentCode
1744848
Title
Frequency domain chaotic watermarking
Author
Giovanardi, A. ; Mazzini, G.
Volume
2
fYear
2001
fDate
6-9 May 2001
Firstpage
521
Abstract
A watermarking procedure to be applied in the frequency domain to digital images has been proposed and investigated, with purpose of copyright protection. The selected digital signature is a chaotic sequence embedded by considering a shaping function to weight in different manner each sequence value, as a function of the image properties in the frequency domain. The shaping function proposed permits one to enhance the robustness of the watermarking to attacks like the JPEG one. Numerical results show the validity of the proposed approach and of the use of particular classes of chaotic maps
Keywords
chaos; copy protection; image coding; message authentication; sequences; chaotic maps; copyright protection; digital images; digital signature; embedded chaotic sequence; frequency domain chaotic watermarking; shaping function; Chaos; Digital images; Discrete Fourier transforms; Fourier transforms; Frequency domain analysis; Image coding; Protection; Robustness; Transform coding; Watermarking;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location
Sydney, NSW
Print_ISBN
0-7803-6685-9
Type
conf
DOI
10.1109/ISCAS.2001.921122
Filename
921122
Link To Document