A Robust Zero-Watermark Algorithm Based on Singular Value Decomposition and Discreet Cosine Transform

被引：0
|
作者：
Ye, Tianyu [1 ]
机构：
[1] Zhejiang Gongshang Univ, Coll Informat & Elect Engn, Hangzhou 310018, Peoples R China
来源：
PARALLEL AND DISTRIBUTED COMPUTING AND NETWORKS | 2011年 / 137卷
关键词：
Digital watermarking; zero-watermark; singular value decomposition; discreet cosine transform; similarity;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A robust zero-watermark algorithm is proposed, which is based on singular value decomposition and discreet cosine transform. The image is firstly spilt into non-overlapping blocks. Afterwards, every block is conducted with singular value decomposition, and its singular value matrix is transformed with discreet cosine transform. The robust zero-watermark sequence is derived from comparing the numerical relationship between two direct coefficients from adjacent blocks. Experimental results of robustness tests show that it has good robustness against various attacks.
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页码：1 / 8
页数：8
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