| 基于位运算和混沌序列的数字图像隐藏技术 |
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| 引用本文： | 李鹏,张雪锋,田东平.基于位运算和混沌序列的数字图像隐藏技术[J].计算机工程与应用,2008,44(18):175-176. |
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| 作者姓名： | 李鹏 张雪锋 田东平 |
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| 作者单位： | 1.西安邮电学院 信息与控制系，西安 710061 2.西安电子科技大学 电子工程学院，西安 710071 |
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| 基金项目： | 陕西省自然科学基金
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陕西省教育厅资助项目 |
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| 摘 要： | 提出了一种改进的数字图像隐藏方法。首先应用混沌系统产生混沌序列，用此混沌序列对原始图像做预处理加密，即做改进的魔方置乱和像素置换；然后对结果图像做进一步基于位运算的隐藏；最后应用评价指标对隐藏效果和安全性进行分析。实验结果表明，该方法具有较高的安全性以及加密效率。
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| 关 键 词： | 位运算 混沌序列 图像隐藏 图像加密 置乱 |
| 文章编号： | 1002-8331(2008)18-0175-02 |
| 收稿时间： | 2007-9-20 |
| 修稿时间： | 2007年9月20日 |
Digital image hiding method based on bit operation and chaotic sequence |
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| LI Peng,ZHANG Xue-feng,TIAN Dong-ping.Digital image hiding method based on bit operation and chaotic sequence[J].Computer Engineering and Applications,2008,44(18):175-176. |
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| Authors: | LI Peng ZHANG Xue-feng TIAN Dong-ping |
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| Affiliation: | 1.Department of Information and Control，Xi’an Institute of Posts and Telecommunication，Xi’an 710061，China 2.College of Electronic Engineering，Xidian University，Xi’an 710071，China |
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| Abstract: | An improved image hidding method is proposed based on chaotic sequence and bit operation.Firstly,chaotic sequences are generated based on logisitc mapping and applied to pre-encrypt the image,including improved magic-cube scrambling and pixels permutation;then further processing are used to hide the pre-encrypted image based on bit operation.The effect of hidding is also analyzed by using the method of accessing.Simulation results indicate that the method has good efficiency and security characteristic. |
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| Keywords: | bit operation chaotic sequence image hiding image encryption permutation |
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