A Robust Watermarking Algorithm Based on a New Orthogonal Complex Transform

ZHANG Yue; SHU Hua-zhong; WU Jia-song; LUO Li-min

doi:10.3969/j.issn.0372-2112.2013.08.019

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A Robust Watermarking Algorithm Based on a New Orthogonal Complex Transform

更新时间：2025-07-16

- A Robust Watermarking Algorithm Based on a New Orthogonal Complex Transform
- Acta Electronica Sinica Vol. 41, Issue 8, Pages: 1574-1579(2013)
- 作者机构：
  
  东南大学影像科学与技术实验室,江苏,南京,210096
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2013.08.019
  CLC： TP309
- Published：2013
- 稿件说明：
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ZHANG Yue, SHU Hua-zhong, WU Jia-song, et al. A Robust Watermarking Algorithm Based on a New Orthogonal Complex Transform[J]. Acta Electronica Sinica, 2013, 41(8): 1574-1579.
DOI：

ZHANG Yue, SHU Hua-zhong, WU Jia-song, et al. A Robust Watermarking Algorithm Based on a New Orthogonal Complex Transform[J]. Acta Electronica Sinica, 2013, 41(8): 1574-1579. DOI： 10.3969/j.issn.0372-2112.2013.08.019.

摘要

本文提出了一种基于共轭对称列率复数哈达码变换(CS-SCHT)的鲁棒水印算法.在水印嵌入时

选择图像的CS-SCHT系数幅度作为水印载体

同时设计一种新的人眼视觉系统改善含水印图像的不可见性.检测时

运用Kolmogorov-Smirno方法估计系数幅度的近似分布.然后根据该分布构造局部最优检测器.实验表明该变换适合于水印领域

新检测器具有良好的鲁棒性

且人眼视觉系统能够改善含水印图像的视觉质量.

Abstract

A new robust watermarking algorithm based on conjugate symmetric sequency-ordered complex Hadamard transform (CS-SCHT) is proposed in this paper.At the phase of embedding

the magnitude of the CS-SCHT coefficients of host image is selected as support of watermark

and a new human visual system is designed to improve the invisibility of marked image.Kolmogorov-Smirno method is used to estimate the approximate distribution of the coefficients' magnitude

and then a locally optimal detector is constructed based on the approximate distribution.Experimental results show that the CS-SCHT is suitable for watermark application

and the proposed detector and human visual system can provide good performance.

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