Image scrambling is an available means for image encryption.
图像置乱是实现图像加密的重要手段之一。
This paper presents a useful new algorithm of digital image scrambling.
提出了一种实用的数字图像置乱新算法。
Based on DES in cryptography, image scrambling is studied in this paper.
本文在DES加密的基础上,研究数字图像的置乱问题。
An audio and image scrambling method based on the itinerary of tent map was proposed.
提出了一种基于帐篷映射迭路的音频和图像的置乱方法。
The new image scrambling degree evaluation method based on fuzzy entropy theory is proposed.
提出了基于模糊熵理论的图像置乱程度评价新方法。
The new image scrambling degree evaluation method based on fuzzy divergence theory is proposed.
提出了基于模糊散度理论的图像置乱程度评价新方法。
In this paper, a new algorithm is proposed for image scrambling based on magic cube and chaotic.
提出了一种新的基于魔方的混沌图像置乱算法。
A new class of digital image scrambling algorithm based on the method of queue transformation is proposed.
提出了一种基于队列变换的数字图像置乱新算法。
Based on image scrambling and pattern recognition, a new watermarking scheme in huge index image is proposed.
给出了一种大容量索引图像中水印方案的设计与实现。
Digital image scrambling can change histogram distribution of original image, it plays an important role in the image encryption.
数字图像的灰度置乱能够改变原图像的直方图分布,在图像加密中扮演着比较重要的角色。
The main innovative points of this thesis are as follows: (1) a new numerical index to score the image scrambling extent is presented.
本文的主要创新性工作为:(1)提出了一种新的衡量图像置乱程度的数值指标。
The presented steganography approach combines image scrambling technology and modified LSB embedding and provides double protection for the embedded message.
该算法结合了图像置乱技术和改进的LS B嵌入方案,对嵌入的数据形成了双层保护。
As the variety of watermark and its wide use, this thesis will focus on the three following aspects: image scrambling, color image watermark, and video watermark.
数字水印应用涉及范围广泛,种类繁多,本文分别在图像置乱、彩色图像水印、及视频水印三个方面做了部分研究工作。
Therefore, this paper applied an improved watermark preprocessing technologies, the chaos theory and image scrambling technology combine encrypt of watermark image.
为此,本文应用一种改进的水印预处理技术,将混沌序列和图像置乱技术结合起来对灰度水印图像进行加密。
A novel calculating formula of scrambling degree is presented at length, the experiments showing that the formula can better describe the result of the image scrambling.
讨论了一种新的置乱度计算公式,试验表明,该公式可以很好地反映置乱程度。
Based on the analysis of the defect of the traditional iterated image scrambling, a new image scrambling algorithm was proposed based on chaotic sequence and bit exchange.
在分析传统迭代型图像置乱方法不足的基础上,提出一种新的基于混沌序列和位交换的图像置乱算法。
The concepts and theory about digital watermark are introduced in this paper. A kind of fragile watermark technology is given by means of digital image scrambling technology.
本文概括地介绍了数字水印技术的概念及原理,并利用数字图像置乱技术,给出了一种脆弱数字水印技术。
Finally, the relevant theory was verified correct by several simulation experiments of cat map in image scrambling, which provided mathematical foundation for image scrambling.
通过图像置乱的仿真实验,验证了相关理论的正确性,从而为图像置乱提供了数学理论依据。
In this part, the scrambling methods based on cryptography and chaos sequences are presented, and the encryption methods used in the TV are applied to the digital image scrambling.
这部分中,本文提出了基于密码学算法的图象置乱方法和基于混沌序列的图象置乱方法,并把电视信号加密方法应用到数字图象置乱中去。
Experimental results show that the proposed numerical index suits the intuitionistic vision effects perfectly. (2) a new image scrambling method based on BP neural networks is presented.
仿真实验表明:该数值指标能较好地与人的直观视觉效果相适应。(2)提出了一种基于BP神经网络的图像置乱新方法。
By using the energy distribution of the wavelet decomposition, image hiding algorithm based on wavelet transformation is presented, and then improved with prime number scrambling algorithm.
利用小波分解的能量分布规律,提出了基于小波变换的图像隐藏算法,并利用素数置乱对隐藏算法作进一步的改进。
Through the classic image watermarking system contrast experiment, it proved that double chaos scrambling can enhance security and boost anti-offensive.
通过经典的图像水印系统对比实验证明了双混沌置乱能提高水印安全性和抗剪裁攻击攻击性能。
Using the sensitivity to the initial conditions and parameters of mixed-optical bistable chaotic sequence, we have a new scrambling algorithm about watermarking image.
利用混合光学双稳混沌序列的伪随机性和初值敏感性,提出一种用于数字水印中的水印图像置乱算法。
First of all, original image is divided into blocks, each subgraph for integer wavelet decomposition, and then the binary image after scrambling embedding.
首先将原始图像进行分块,逐一对每块子图进行整数小波分解,然后将置乱后的二值图像嵌入到低频系数。
An image watermarking algorithm based on chaotic scrambling.
基于混沌置乱的图像水印算法。
Based on the ideas of public key cryptography, a new scrambling technology of digital image based on primitive roots is given.
以密码学中的公钥思想为基础,提出了一种基于原根的数字图像置乱技术。
As the basic means for hiding huge image information, the scrambling of digital image makes the old image to a new disorderly image with a reversible transform.
数字图像置乱利用一种可逆的变换将原始图象变换成一个杂乱无章的新图像,它通常作为图像信息安全与隐藏的基础性工作。
The security of the scheme is depended on the scrambling parameters and the key image, etc.
嵌入过程中水印:的置乱参数和密钥图像等秘密参数决定了该水印方案的安全性。
Firstly, it can be obtained 2-value watermark image by PDF417 coding to watermark information and chaotic sequence scrambling.
首先将水印信息进行PDF417编码,并在密钥控制下进行混沌序列置乱后得到二值水印图像;
Firstly, it can be obtained 2-value watermark image by PDF417 coding to watermark information and chaotic sequence scrambling.
首先将水印信息进行PDF417编码,并在密钥控制下进行混沌序列置乱后得到二值水印图像;
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