动态更新失真代价的自适应JPEG隐写算法

汤光明; 孙艺; 徐潇雨; 王宇

doi:10.11959/j.issn.1000-436x.2017177

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动态更新失真代价的自适应JPEG隐写算法

学术论文 | 更新时间：2024-06-05

- 动态更新失真代价的自适应JPEG隐写算法
- Adaptive JPEG steganography based on distortion cost updating
- 通信学报 2017年38卷第9期页码：1-8
- 作者机构：
  
  1. 中国人民解放军信息工程大学，河南郑州 450001
  2. 吉林省四平军分区，吉林四平 136000
- 作者简介：
  
  [ "汤光明（1963-），女，湖南衡阳人，中国人民解放军信息工程大学教授、博士生导师，主要研究方向为信息安全、信息隐藏。\t" ]
  [ "孙艺（1992-），女，吉林四平人，中国人民解放军信息工程大学硕士生，主要研究方向为信息隐藏。" ]
  [ "徐潇雨（1993-），男，江苏连云港人，中国人民解放军信息工程大学硕士生，主要研究方向为深度学习。" ]
  [ "王宇（1984-），男，吉林辽源人，吉林省四平军分区战备建设处参谋，主要研究方向为信息安全。" ]
- 基金信息：
  
  国家自然科学基金资助项目;The National Natural Science Foundation of China(61272488)
- DOI：10.11959/j.issn.1000-436x.2017177
  中图分类号： TP391
- 网络出版日期：2017-09，
  
  纸质出版日期：2017-09-25
- 稿件说明：
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汤光明, 孙艺, 徐潇雨, 等. 动态更新失真代价的自适应JPEG隐写算法[J]. 通信学报, 2017,38(9):1-8.

Guang-ming TANG, Yi SUN, Xiao-yu XU, et al. Adaptive JPEG steganography based on distortion cost updating[J]. Journal on communications, 2017, 38(9): 1-8.
汤光明, 孙艺, 徐潇雨, 等. 动态更新失真代价的自适应JPEG隐写算法[J]. 通信学报, 2017,38(9):1-8. DOI： 10.11959/j.issn.1000-436x.2017177.

Guang-ming TANG, Yi SUN, Xiao-yu XU, et al. Adaptive JPEG steganography based on distortion cost updating[J]. Journal on communications, 2017, 38(9): 1-8. DOI： 10.11959/j.issn.1000-436x.2017177.

摘要

以往的自适应JPEG隐写算法大多只在秘密信息嵌入之前计算图像失真，无法在嵌入过程中动态地调节失真代价。考虑到信息嵌入时的交互影响，提出一种动态更新失真代价的自适应JPEG隐写算法。首先，分析量化步长、待嵌DCT(discrete cosine transform)系数绝对值以及扰动误差3种影响嵌入波动的因素。进而，提出失真代价更新策略EUS(embedding update strategy)，使图像的失真代价能够动态地更新。最后，结合此策略设计并实现一种自适应JPEG隐写算法。实验表明该算法能够显著提高JPEG隐写的安全性。

Abstract

Previous adaptive JPEG steganography algorithms mostly calculate image distortion before secret information embedding

so they can’t dynamically adjust distortion costs.Considering the mutual impacts during embedding

an adaptive JPEG steganography algorithm based on distortion cost updating was proposed.Firstly

three factors that affect embedding fluctuations were analyzed

including quantization step

the absolute value of the quantized DCT coefficient to be modified and perturbation error.Then the embedding update strategy (EUS) was proposed

which enabled to dynamically update the distortion costs.After that

an adaptive JPEG steganography algorithm was implemented combining the strategy.The experimental result illustrates that the algorithm can significantly improve the secure performance of JPEG steganography algorithm.

关键词

Keywords

references

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