標題: Tree Energy Differentiation (TED) Based Wavelet Watermarking for Digital Images
作者: Tsai, Min-Jen
Chen, Bai-Jiun
資訊管理與財務金融系 註:原資管所+財金所
Department of Information Management and Finance
關鍵字: TED;digital image watermarking;wavelet tree
公開日期: 1-Jan-2008
摘要: In this paper, we present a novel differential energy watermarking algorithm called free Energy Differentiation (TED) based on the wavelet tic., structure. The wavelet coefficients of the image arc divided into disjoint twos called wavelet trees. A wavelet tree consist,: of 21 coefficients and is divided into 6 blocks. One watermark bit is embedded into one wavelet tree using the energy differentiation between coefficients of each block. lit addition, the Contrast sensitive Function (CSF) of human visual system is also considered fur better weighting in watermarking. Using, this approach, we cat cheek each wavelet tree to verify the watermark existence for copyright protection and ownership verification. The experimental results demonstrate the effectiveness of TED algorithm in terms of robustness and imperceptibility of watermarking.
URI: http://hdl.handle.net/11536/2663
ISBN: 978-1-4244-1764-3
ISSN: 1522-4880
期刊: 2008 IEEE International Conference on Image Processing, Proceedings
Volume: 
Issue: 
起始頁: 445
結束頁: 448
Appears in Collections:Conferences Paper