Title :
A robust digital watermark using multiresolution analysis of image
Author :
Murakami, Kenji ; Ueno, Yoshito
Author_Institution :
Graduate Sch. of Inf. Syst., SOKA Univ., Tokyo, Japan
Abstract :
In this paper, we propose how to embed the watermark into an image under wavelet transform precisely utilizing an appropriate filter for specifying the embedded position and clustering the variance of multi-resolution representation of an image. This system has a feature of the robustness against alteration attacks of malicious users utilizing the precise detection of embedded watermark
Keywords :
copy protection; filtering theory; image representation; wavelet transforms; embedded position; filter; malicious users; multi-resolution representation; multiresolution image analysis; robust digital watermark; robustness; variance clustering; wavelet transform; Discrete Fourier transforms; Discrete cosine transforms; Discrete wavelet transforms; Frequency; Multiresolution analysis; Pixel; Protection; Robustness; Watermarking; Wavelet transforms;
Conference_Titel :
Signal Processing Proceedings, 2000. WCCC-ICSP 2000. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-5747-7
DOI :
10.1109/ICOSP.2000.891776
