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一类二值图像快速加密算法的压缩性能分析
  • ISSN号：1009-5986
  • 期刊名称：电子与信息学报
  • 时间：0
  • 页码：2015-2018
  • 语言：中文
  • 分类：TP309[自动化与计算机技术—计算机系统结构;自动化与计算机技术—计算机科学与技术]
  • 作者机构：[1]重庆大学计算机学院,重庆400030
  • 相关基金：国家自然科学基金（60573047,60703035）资助课题
  • 相关项目：数字混沌技术及其在数字媒体认证中的应用研究
作者： 胡月|周庆|廖晓峰|
关键词： 图像加密, 快速加密, 二值图像, MH编码, Image encryption, Fast encryption, Binary Image, MH coding
中文摘要：

近年来,多媒体加密技术得到了广泛的研究,但是现有算法在分析加密算法的压缩性能时主要采用定性分析和实验检验的方式,未能实现对压缩性能的量化分析和控制,从而限制了该技术的应用。该文分别就MH编码,Huffman编码和自适应算术编码3种不同的编码方式,对一类常用的二值图像快速加密算法的压缩性能进行了定量分析。实验结果表明该文给出的压缩性能预测公式是准确的。

英文摘要：

Multimedia encryption algorithms are widely studied in recent years. However, the performances of those algorithms are usually checked by qualitative analysis and simulations. In this paper, the compression performance of a sort of encryption algorithms for binary image is analyzed quantitatively using information theories. It shows that those algorithms are good at performances including security, speed, compression ratio, robustness and format-compliance, and therefore suitable for practical use.

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