Description: Firstly, research on robust image watermarking. A digital watermarking scheme based on wavelet transform was proposed. It realizes the watermarking extract without the original image using 64×64×8 bit gray image as the watermark signal. In order to enhancing the security of the watermark, we employ an encryption technology based on chaos and bit plan. Simulation results show that our scheme have good invisibility and can survive low-quality JPEG compression, median filtering and so on. In addition, the analysis of the extracted watermark can help us to detect and localize tampers. Platform: |
Size: 102725 |
Author:xiaxianming |
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Description: Firstly, research on robust image watermarking. A digital watermarking scheme based on wavelet transform was proposed. It realizes the watermarking extract without the original image using 64×64×8 bit gray image as the watermark signal. In order to enhancing the security of the watermark, we employ an encryption technology based on chaos and bit plan. Simulation results show that our scheme have good invisibility and can survive low-quality JPEG compression, median filtering and so on. In addition, the analysis of the extracted watermark can help us to detect and localize tampers.-Firstly, research on robust image watermarking. A digital watermarking scheme based on wavelet transform was proposed. It realizes the watermarking extract without the original image using 64 × 64 × 8 bit gray image as the watermark signal. In order to enhancing the security of the watermark, we employ an encryption technology based on chaos and bit plan. Simulation results show that our scheme have good invisibility and can survive low-quality JPEG compression, median filtering and so on. In addition, the analysis of the extracted watermark can help us to detect and localize tampers. Platform: |
Size: 102400 |
Author:xiaxianming |
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Description: 这是从本网站下载的基于混沌序列的图像加密算法，自己又添加了两种加密算法以及做了一个较好的对话框界面。-This is downloaded from this site sequences based on chaotic image encryption algorithm, but it is adding two encryption algorithm as well as doing a good dialog box interface. Platform: |
Size: 1393664 |
Author:巢歌 |
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Description: 2007年硕士论文，基于混沌的数字图像和视频加密算法研究-Master' s thesis in 2007, based on the chaos of the digital image and video encryption algorithm Platform: |
Size: 4153344 |
Author:小杜 |
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Description: 基于混沌理论的Logistic映射数字图像的加密算法，实现图像的置乱-Based on the Chaos Theory of Logistic mapping digital image encryption algorithm, the realization of image scrambling Platform: |
Size: 65536 |
Author:夏青 |
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Description: With the fast development of the computer technology and information processing technology, the problem of information security is becoming more and more important. Information hiding is usually used to protect the important information from disclosing when it is transmitting over an insecure channel. Digital image encryption is one of the most important methods of image information hiding and camouflage. The image encryption techniques mainly include compression methodology, modern cryptography mechanism, chaos techniques, DNA techniques, and so on. In this paper, we summarize the main encryption algorithms and classify them based on the means. In particular, chaos-based and DNA cryptography-based image encryption algorithms are illustrated and analyzed in detail. Finally, the future direction in this field is discussed. Platform: |
Size: 76800 |
Author:mrinal |
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Description: 本文主要提出一种新的基于混沌的图像加密算法。适用于BMP等格式图片！-This paper presents a new image encryption algorithm based on chaos. Applies to BMP format picture! Platform: |
Size: 1874944 |
Author:侯淇彬 |
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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: 基于混沌和分组结构的图像加密算法研究之论文的仿真matlab程序-Image encryption algorithm based on chaos and group structure of paper simulation of MATLAB programs Platform: |
Size: 9216 |
Author:思源 |
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Description: 基于混沌的图像比特级加密算法（新的置乱和扩散策略）-Image bit level encryption algorithm based on Chaos (New scrambling and diffusion strategy) Platform: |
Size: 1024 |
Author:王厚林 |
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Description: 介绍了数字图像加密技术的现状，主要介绍了混沌在数字图像加密领域内的应用。 提供了一个基于混沌的数字图像加密算法(This paper introduces the current situation of digital image encryption technology, mainly introduces the application of chaos in the field of digital image encryption. A digital image encryption algorithm based on chaos is presented.) Platform: |
Size: 163840 |
Author:432502 |
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