Adaptive watermarking algorithm based on chaotic map

摘要：

This paper presents a new watermarking algorithm based on chaotic map. In our algorithm, a class of piecewise linear chaotic map (PLCM) is employed for the chaotic watermark generation, and a novel embedding method is proposed. To improve the embedding performance, a human visual system (HVS) model is exploited to embed the watermark adaptively. The chaotic watermark is embedded into the middle frequency coefficients of discrete cosine transformation (DCT) domain, keeping the chaotic parameter and initial condition as private key. Simulation results demonstrate that the watermark generated with the proposed algorithm is invisible and secure, the watermarking scheme is robust against commonly used image processing operations, such as loss JPEG compression, Gaussian noise pollution, cropping, etc.

关键词： chaotic map watermark HVS robustness

作者: Xianyong Wu Yongliang Xiong

作者单位: College of Electrical Engineering & New Energy, China Three Gorges University, Yichang, Hubei, China College of Computer & Information, China Three Gorges University, Yichang, Hubei, China

会议类型: 国际会议

会议名称: The 2010 International Conference on Computer Application and System Modeling(2010计算机应用与系统建模国际会议 ICCASM 2010)

会议地点: 太原

会议语种:英文

页码: 477-480

在线出版日期: 2010-10-22（万方平台首次上网日期，不代表论文的发表时间）