標題: Blind watermarking using wavelet tree quantization
作者: Wang, SH
Lin, YP
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
公開日期: 2002
摘要: This paper proposes a blind watermarking scheme using wavelet tree quantization. The wavelet coefficients of the host image are grouped into wavelet trees and each watermark bit is embedded using two trees. The trees are so quantized that they exhibit a large enough statistical difference; which will later be used for watermark extraction. Each watermark bit is embedded in all frequency bands, which renders the mark more resistant to attacks that remove certain frequency components. Also, the embedding is spread throughout a relatively large spatial region, which yields more robustness against spatial domain geometric attacks. Examples of various attacks will be given to demonstrate the robustness of the proposed technique.
URI: http://hdl.handle.net/11536/18856
ISBN: 0-7803-7304-9
期刊: IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO, VOL I AND II, PROCEEDINGS
起始頁: 589
結束頁: 592
顯示於類別:會議論文