A Dynamic Multiple Watermarking Algorithm Based on DWT and HVS

• 作者: Hongsong Li Li Zhang Minrong Chen Xilan Yan
• 来源期刊: 通讯、网络与系统学国际期刊(英文)
• 学科: 工学
• 关键词: DYNAMIC MULTIPLE WATERMARKING JND
• 年，卷（期）: 2012,（8）
• 页码范围: 490-495
• 页数: 6页
• 分类号: TP39

摘要

In this paper, a dynamic robust multiple watermarking algorithm is proposed based on Discrete Wavelet Transform (DWT) and Human Visual System (HVS). Watermark image is transformed by Arnold transform. Original image is divided into blocks with 8 by 8 and each block is transformed by DWT. By adopting the Just Noticeable Difference (JND) of HVS and changing low frequency coefficients, binary string message can be embedded into the decomposed original image. Watermark can be extracted blindly. Experimental results have shown that the proposed watermarking has robust against many attacks such as JPEG compressing, cropping, additive noise, line removal, median filter and related attacks with sinStirMark.