Improving the performance of spatial watermarking of images using channel coding

被引：13

作者：

Hernández, JR ^{[1
]}

Rodríguez, JM ^{[1
]}

Pérez-González, F ^{[1
]}

机构：

[1] Univ Vigo, ETSI Telecom, Dept Tecnol Comunicac, Vigo 36200, Spain

来源：

SIGNAL PROCESSING | 2000年 / 80卷 / 07期

关键词：

Bit error rate - Block codes - Decoding - Digital image storage - Electronic document identification systems - Image compression - Mathematical models - Probability - Security of data - Signal to noise ratio;

D O I：

10.1016/S0165-1684(00)00034-7

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper we present a spatial-domain watermarking scheme for data hiding and copyright protection of still images and analyze the effect that the application of channel coding has on the performance of the watermark detection and decoding tests. Detector structures are derived for both tests and analytical bounds and approximations are obtained for the bit error rate (BER) and the receiver operating characteristic (ROC) associated with the watermark decoding and detection tests when block codes are employed. Finally, the analytical expressions are contrasted with experimental results in several cases of interest. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：1261 / 1279

页数：19

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