Title :
Watermarking Scheme in Wavelet Domain Based on Wavelet Threshold Estimators
Author :
Noubari, H. Ahmadi ; Molavi, Behnam
Author_Institution :
Dept. of Electr. & Comput. Eng., Tehran Univ.
fDate :
Oct. 18 2006-Sept. 20 2006
Abstract :
Watermark detection can be considered as an estimation problem in which the watermark sequence has to be estimated from a possibly distorted image. In this paper, we use wavelet threshold estimation for extraction of watermark sequence. The correlation matching is then used for checking for the presence of the watermark. It is shown that the performance of this method is superior to that of correlation matching. The watermark embedding is performed in wavelet domain
Keywords :
image coding; image matching; image sequences; watermarking; wavelet transforms; correlation matching; watermark sequence; watermarking scheme; wavelet domain; wavelet threshold estimators; Computer networks; Digital communication; Discrete cosine transforms; Discrete wavelet transforms; IP networks; Maximum likelihood detection; State estimation; Watermarking; Wavelet coefficients; Wavelet domain;
Conference_Titel :
Communications and Information Technologies, 2006. ISCIT '06. International Symposium on
Conference_Location :
Bangkok
Print_ISBN :
0-7803-9741-X
Electronic_ISBN :
0-7803-9741-X
DOI :
10.1109/ISCIT.2006.340007
