Robust copyright protection scheme for digital images using overlapping DCT and SVD

被引：60
|
作者：
Wu, Xiaotian [2 ]
Sun, Wei [1 ]
机构：
[1] Sun Yat Sen Univ, Sch Software, Guangzhou 510006, Guangdong, Peoples R China
[2] Sun Yat Sen Univ, Sch Informat Sci & Technol, Guangzhou 510006, Guangdong, Peoples R China
来源：
APPLIED SOFT COMPUTING | 2013年 / 13卷 / 02期
关键词：
Copyright protection; Digital watermarking; Discrete cosine transform; Singular value decomposition; SINGULAR-VALUE DECOMPOSITION; WATERMARKING SCHEME; RIGHTFUL OWNERSHIP; WAVELET TRANSFORM; QUANTIZATION; DIFFERENCE; EXPANSION;
D O I：
10.1016/j.asoc.2012.09.028
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
In this paper, a robust lossless copyright protection scheme, based on overlapping discrete cosine transform (DCT) and singular value decomposition (SVD), is presented. The original host image is separated into overlapping blocks, to which the DCT is applied. Direct current (DC) coefficients are extracted from the transformed blocks to form a DC-map. A series of random positions are selected on the map and SVD is performed to construct an ownership share which is used for copyright verification. Simulation results are carried out, demonstrating the robustness of the proposed scheme against different image-manipulation attacks. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：1170 / 1182
页数：13
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