The Reliability Analysis of Correlation-Based Digital Watermarking Detection

LIU Tong; QIU Zheng-ding

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The Reliability Analysis of Correlation-Based Digital Watermarking Detection

更新时间：2025-07-16

- The Reliability Analysis of Correlation-Based Digital Watermarking Detection
- Acta Electronica Sinica Vol. 30, Issue 5, Pages: 685-688(2002)
- 作者机构：
  
  北方交通大学信息所,北京,100044
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP391
- Published：2002
- 稿件说明：
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LIU Tong, QIU Zheng-ding. The Reliability Analysis of Correlation-Based Digital Watermarking Detection[J]. Acta Electronica Sinica, 2002, 30(5): 685-688.
DOI：

LIU Tong, QIU Zheng-ding. The Reliability Analysis of Correlation-Based Digital Watermarking Detection[J]. Acta Electronica Sinica, 2002, 30(5): 685-688. DOI：

摘要

目前大多数图像水印算法根据经验值确定水印相关检测时的检测门限

并且只能通过实验结果检验算法性能.本文分析了图像和水印的随机过程模型

给出了水印相关检测的统计特性

在此基础上描述了水印能量、检测门限及水印检测器误码率之间的关系

从理论上确定为保证一定的误码率而应嵌入的水印能量;对于退化的水印图像

也可根据所期望的误码率确定判决门限.因此本文对水印的相关检测的可靠性分析具有一定的普遍性.

Abstract

Most current image watermarking schemes determine the detection threshold in experience

and test the algorithm performance only by experimental results.In this paper

we analyzed the stochastic process models of image and watermark

present the statistical property of watermark correlation detection

and describe the connection of watermark energy

decision variable and watermark correlator.Probabilities of incorrect detections are expressed in terms of watermark-to-image power ratio statistical properties.With the result of this paper

we can determine the watermark energy given the permitted bit error rate

and adaptively determine the threshold of the corrupted watermarked images.

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