A chaotic image encryption method based on control word is designed to improve the chaotic perturbation model and solve the finite precision problem in chaotic encryption.
论文设计了基于控制字的混沌图像加密方法，完善了混沌扰动模型，更好地解决了混沌加密有限精度问题。
The chaotic image encryption technique is Presented in this paper; some advantages with chaotic technique and some valuable Problems for further research were illustrated.
本文介绍了混沌加密技术和利用混沌技术进行图像加密的方法，并阐述了图像混沌加密的特点和一些值得进一步研究的问题。
In this method, the original image 's feature is extracted by using wavelet transform and quantization. The feature information is changed into watermark by the chaotic sequence encryption.
该方法在一定的量化标准下利用小渡变换提取图象的特征信息，通过混沌序列对其加密生成数字水印。
Chaotic sequence can be produced easily and is sensitive of the original conditions and parameters. In recent years, it is widely used in image encryption.
混沌序列具有容易生成，对初始条件和混沌参数敏感等特点，近年来在图像加密领域得到了广泛的应用。
In this paper, a symmetric image encryption scheme based on composite discrete chaotic system is presented.
提出了一种基于复合离散混沌系统的对称图像加密算法。
According to the characteristic of higher secrecy of high-dimension chaotic system, a new colour image encryption algorithm based on unified chaotic system and general cat maps was proposed.
根据高维混沌系统具有更高安全性的特点，提出一种基于统一混沌系统和广义猫映射的彩色图像加密新算法。
In this paper, a gray image encryption arithmetic based on chaotic sequences is proposed by taking advantage of the encryption template matrix and sort transformation.
讨论了一种以实数值混沌序列为基础，利用加密模板矩阵和排序变换，给出一种灰度图像的加密算法。
Two chaotic sequences are modulated according characters of chaotic system, using for watermark encryption and sub image extraction.
利用混沌系统的特点调制了两种不同的混沌序列，分别用于水印加密和子图像的抽取。
Considering the characteristic of huge image data, traditional encryption algorithm can't satisfy system's demand, so we bring forward a image encryption algorithm based on chaotic sequences.
考虑到图像数据量大的特点，传统加密算法无法满足系统要求，我们提出了一种基于混沌序列的图像加密算法。
Encryption matrixes and replacement matrixes are being generated by using the chaotic mapping via parameter perturbation, and then the gray-scale image is encrypted.
利用参数扰动产生的有限精度混沌序列产生加密矩阵和置乱矩阵，对灰度图像进行加密。
Aiming at defects which are exiting in image encryption algorithm based on chaotic sequences, this paper proposes an image chaotic encryption algorithm based on sampling without replacement.
针对现有基于混沌序列的图像加密算法的缺陷，提出一种基于不放回抽样的图像混沌加密算法。
In this paper, an image encryption algorithm based on chaotic mapping and vector quantization is presented.
提出了混沌映射与矢量码书相结合的加密算法。
This paper presents a digital image encryption algorithm based on four-value chaotic array.
提出了一种基于四值混沌阵列的数字图像加密算法。
And based on those, a practical image encryption algorithm was put forward according to the characteristics of chaotic images.
在此基础上，利用混沌图像的混沌特性，提出了一种实用的图像加密算法。
The initial sensitivity and randomness of the chaotic map make the image encryption algorithm based on chaotic theory become a hot researching field recently.
混沌映射所具有的初值敏感性和随机性，使得基于混沌理论的图像加密算法成为一个研究热点。
The image hiding system contains three modules : the chaotic module, the encryption module and the embedded module.
图像隐藏系统由置乱模块、加密模块和嵌入模块组成。
In this paper, the symmetric image encryption scheme based on 3-d quasi-affine transformation over limited integer grids and 4-d chaotic map.
本文基于三维整数拟仿射变换和四维混沌系统对图像加密。
We combine the above algorithm with selective image encryption and propose a selective image encryption based on couple chaotic systems.
基于级联空间混沌系统的选择图像加密算法是在将上述算法结合选择图像加密后提出的。
We combine the above algorithm with selective image encryption and propose a selective image encryption based on couple chaotic systems.
基于级联空间混沌系统的选择图像加密算法是在将上述算法结合选择图像加密后提出的。
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