Title: A Wavelet-based Watermarking Scheme Using Double Wavelet Tree Energy Modulation
Authors: Tsai, Min-Jen
Lin, Ching-Ting
Liu, Jung
資訊管理與財務金融系 註:原資管所+財金所
Department of Information Management and Finance
Keywords: Watermarking;Wavelet tree quantization
Issue Date: 2008
Abstract: Wavelet tree based watermarking algorithms are generally using the energy difference among grouped wavelet coefficients for invisible watermark embedding and extraction. According to the cryptanalysis of wavelet tree quantization (WTQ) scheme, its robustness has been proven weak and modified wavelet tree quantization (MWTQ) is developed consequently. However, MWTQ needs the wavelet tree group data as the extra information and MWTQ is not blind for watermark extraction. Therefore, a novel wavelet tree watermarking using double wavelet tree energy modulation is proposed in this study. This study has performed intensive comparison for the proposed scheme with WTQ, WTGM and MWTQ under various signal processing attacks. The experiment results demonstrate that the proposed technique yields better performance with higher degree of robustness than WTQ.
URI: http://hdl.handle.net/11536/1741
ISBN: 978-1-4244-1765-0
ISSN: 1522-4880
Journal: 2008 15TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1-5
Begin Page: 417
End Page: 420
Appears in Collections:Conferences Paper