Description: 利用同一密钥的混沌序列对经过置乱的水印信息实现双重加密，考虑小波变换的能量分布问题，把水印信息嵌入低频系数中，确保水印信息的可靠性。提取时利用图像复原方法实现盲检测。-Using the same key after a chaotic sequence of scrambling the watermark information to achieve the double encryption, consider the wavelet energy distribution problem, the watermark information embedded in low-frequency coefficients to ensure the reliability of watermark information. Extracted using image restoration method to achieve blind detection. Platform: |
Size: 625664 |
Author:王宇 |
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Description: 为保证网络信息传输的安全性,提出一种视频图像加密方法。该方法引入混沌系统中的Logistic映射和
Baker映射,结合H·264视频压缩编码特点,利用Baker映射对DCT (Discrete Cosine Transform)变换量化后
的块进行位置置乱,
-In order to ensure the safety of information transmission network, and a video image encryption method. This method is the introduction of chaotic systems in Logistic mapping and Baker mapping, combined with H 264 video compression coding features, the use of Baker mapping of DCT (Discrete Cosine Transform) transform to quantify the location of block after scrambling, Platform: |
Size: 155648 |
Author:武同学 |
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Description: 为保证网络信息传输的安全性,提出一种视频图像加密方法。该方法引入混沌系统中的Logistic映射和
Baker映射,结合H·264视频压缩编码特点,利用Baker映射对DCT (Discrete Cosine Transform)变换量化后
的块进行位置置乱,
-In order to ensure the safety of information transmission network, and a video image encryption method. This method is the introduction of chaotic systems in Logistic mapping and Baker mapping, combined with H 264 video compression coding features, the use of Baker mapping of DCT (Discrete Cosine Transform) transform to quantify the location of block after scrambling, Platform: |
Size: 155648 |
Author:武同学 |
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Description: 混沌函数对图像加密的一种方法。利用了R．Devany混沌理论构造了一种混沌动力系统，并用所生成的混沌序列对图像进行加密．由于混沌动力系统有很强的不可预测性，因此，混沌序列对图像加密能更好的抵御各种攻击．此方法具有加密速度快、安全性高特点．-Chaotic function of a method of image encryption. Use of R. Chaos Theory Construction Devany a chaotic dynamical systems, and chaotic sequence generated by encryption of images. Chaotic dynamical system due to the unpredictability of a strong, therefore, chaotic sequence of image encryption can better withstand all kinds of attacks. This method is fast encryption, high security features. Platform: |
Size: 301056 |
Author:李苏宁 |
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Description: 利用混沌系统给图像加密，加密方法简单易懂，对初学者很好理解-Image encryption using chaotic systems ，encryption method is simple and easy to understand, good for beginners to understand Platform: |
Size: 3058688 |
Author:阿瑟 |
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Description: 彩色图像加密基于三维混沌系统的彩色图像加密新算-A bstr act : The 1D chaotic image encryption method is reported with appropriate performances by using the appropriate
complexity, pseudo- randomness and extreme parameter sensitivity of chaotic sequences but with smaller key space as its serious
drawback compared with others.So, a new image encryption method based on 3D chaotic system is proposed in this paper,
which can not only increase secret key space, but also tone up ability to deciphering.And in this paper, the pixel value of
cipher- image used to get secret key and the feedback used in encryption process improve greatly the performances of the
diffusion function.The method is proved to work well by the result, because of its larger secret key space and high speed of
encryption and so on.
Key words: 3D chaotic system chaotic sequence image encryption Platform: |
Size: 848896 |
Author:ff |
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Description: 基于混沌映射的数字图像置乱方法
关于图像加密方法的期刊论文-Based on Chaotic Mapping method of digital image scrambling on the image encryption method of journal articles Platform: |
Size: 423936 |
Author:bai yifan |
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Description: 混沌序列方法的图像加密，但是没有解密源代码，但是非常不错的，下载分享吧。-Chaotic sequence method of image encryption, but no decryption source code, but very good, download share it. Platform: |
Size: 1024 |
Author:刘汉能 |
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Description: 实现基于小波变换数字水印的嵌入和提取,并实现对压缩，噪声等攻击的检测。-Using the same key after a chaotic sequence of scrambling the watermark information to achieve the double encryption, consider the wavelet energy distribution problem, the watermark information embedded in low-frequency coefficients to ensure the reliability of watermark information. Extracted using image restoration method to achieve blind detection. Platform: |
Size: 868352 |
Author:飞无影 |
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Description: 基于混沌技术的图像加密方法论文，概述其中基本理论及应用-Technique based on chaotic image encryption method papers, outlined the basic theory and application of which Platform: |
Size: 4513792 |
Author:tt |
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Description: 针对最低有效位 LSB方法保密性较差的问题, 本文提出了一种复合Henon混沌序列和LSB的图像加密解密算法-For the least significant bit LSB method less confidentiality issues, this paper proposes a complex Henon chaotic sequence and the LSB of the image encryption and decryption algorithm Platform: |
Size: 1024 |
Author:尹世荣 |
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Description: 这是一篇关于混沌图像加密的报告，提出了一种方法改进混沌图像加密的抗剪切攻击-This is a report on the chaotic image encryption, a method is proposed to improve the chaotic image encryption shear attack Platform: |
Size: 1255424 |
Author:毛亚芳 |
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Description: :目前混沌系统与加密技术相结合是现如今最热门的一个课题，虽然有大量的加密算法面世，但是这些加密算法并不成熟，仍然需要进一步的研究。本文采用像素位置置乱变换和像素值替代变换相结合的加密思想，设计出一种基于混沌的数字图像加密算法。引入了整数域上的逆仿射变换，算法中采用二维 logistic 混沌映射相结合的方法，生成多组混沌序列，像素置乱变换与灰度值替换都由这些混沌序列所控制。多混沌序列产生的密钥空间大于单一的混沌序列所产生的密钥空间，因此本文研究的算法加密强度很高。-The current chaotic system with encryption technology combined is now one of the hottest topics, although there are a number of encryption algorithms available, but these encryption algorithms are not ripe, still need further study. In this paper, the pixel position and the pixel value Scrambling alternative encryption ideological transformation combining design a digital image based on chaos encryption algorithm. The introduction of the inverse affine transformation integer domain, the algorithm uses a two-dimensional logistic chaos mapping method of combining to produce multiple sets of chaotic sequence, scrambling transformation and pixel gray values are replaced by the chaotic sequence control. Key space more chaotic sequence is greater than the key space of a single chaotic sequence generated by the algorithm to encrypt and therefore high strength paper. Platform: |
Size: 836608 |
Author:sanmei |
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Description: 这是我本科毕业设计论文《基于混沌序列的加密图像隐藏技术的设计与实现》，就是把一张图片加密后隐藏在载体图像中，可以抵御各种攻击，用到了Matlab，里面包括开题报告，论文，可执行程序。本文系统介绍了混沌加密、信息隐藏技术。归纳了混沌加密、信息隐藏的分类、特性与应用，给出了混沌加密、信息隐藏的原理和基本框架以及其性能的评价方法，介绍了几种图像的攻击方法。实现了一种混沌加密和图像隐藏的方法。使用混沌加密对待隐藏图像进行加密后嵌入载体图像中，并对嵌入待隐藏图像的载体图像进行了几种攻击以验证其鲁棒性。本系统运用MATLAB编程实现对图像的混沌加密，运用LSB算法将加密后图像嵌入载体图像中，并能承受图像剪切，图像增亮，图像变暗，增加对比度，减低对比度，添加积性噪声，添加高斯噪声，旋转45度，直方图均衡化等一定程度的毁损和各种攻击检测，仍然能解密得到原图像，原图像清晰可辨，鲁棒性非常好。总之本文较好的实现了基于混沌序列的加密图像隐藏技术。-This is my graduation design thesis Design and implementation of chaotic sequence image hiding technique based encryption is encrypted to hide the picture in the carrier image, can withstand a variety of attacks, uses Matlab, which includes opening report, thesis, an executable program. This article describes the chaos encryption system, information hiding technology. Summed up the chaos encryption, information hiding classification, characteristics and application, given the chaotic encryption, information hiding principle and basic framework and its performance uation methods, and introduces the method of attack several images. It implements a chaotic encryption and hidden image method. After using Chaotic Encryption treat hidden image encryption embedded vector images, vector images and embedded image to be concealed several attacks carried out in order to verify its robustness. This system using MATLAB programming chaotic image encryption, use LSB algorithm encrypted image is em Platform: |
Size: 4505600 |
Author:sdgvf |
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Description: 用Ｖisual Ｃ++ 实现数字图象迭代混沌加密方法,-Visual c++ is used to implement digital image iterative chaotic encryption method, Platform: |
Size: 188416 |
Author:tagsgpq |
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Search - chaotic image encryption method