1) digital image scrambling
数字图像置乱
1.
Experimental results show the function of the three dimension similar Fibonacci transformation in digital image scrambling,a theorem is given to estimate the upper bound of the period.
以图像信息安全问题为研究背景,讨论三维类Fibonacci变换的性质与周期性,并用实例说明三维类Fibonacci变换在数字图像置乱中的应用,同时给出了周期的上界估值定理。
2.
Experimental results show the function of Arnold transformation in digital image scrambling.
以图像信息安全问题为背景,讨论了三维Arnold变换及其逆变换的周期性,并用实例说明三维Arnold变换在数字图像置乱中的作用。
3.
The main aim of digital image scrambling, which is used as the pre-processing or post-processing in image information hiding, is to transform a meaningful image into a meaningless or disordered image in order to enhance the power to resist invalid attack and in turn enhance the security.
数字图像置乱技术,作为数字图像信息隐藏的预处理和后处理,其主要目的是将一幅有意义的图像变成一幅杂乱无章的图像,用以增加数字图像信息隐藏算法抵抗非法攻击的能力,从而增加安全性。
2) digital image scrambling technology
数字图像置乱技术
1.
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
3) Digital image scrambling
数字图象置乱
4) image scrambling
图像置乱
1.
Digital halftone based on image scrambling technology;
基于图像置乱技术的数字半调
2.
Measurement of modern image scrambling degree;
现代图像置乱程度衡量方法综述
3.
An evaluation method of image scrambling degree based on correlation;
基于相关性的图像置乱程度衡量方法
5) digital image scrambling
图像置乱
1.
With the security problem of image information as the background,based on the method of determinant com-puting,a new class construction method for digital image scrambling encryption is presented.
以图像信息安全问题为背景,根据行列式计算的思想,提出了一类新的数字图像置乱加密算法的构造方法,具体构造了两个置乱加密算法,计算出了它们周期,并对图像置乱以后在伪装图像(Stego-image)中的隐藏效果和伪装图像(Stego-image)抗压缩和篡改的免疫性进行了实验分析,表明该类算法中存在一些算法用于图像置乱加密是有应用价值的。
2.
The technology of digital image scrambling is a supplemen.
图像置乱是图像信息隐藏技术的一种有效补充,图像置乱来源于传统的加密技术,它使置乱后的图像看起来不可辨认,从而达到保护信息的目的。
6) image scramble
图像置乱
1.
Moreover,the inverse transformation can be an image scramble transformation and its anti-scramble transformation is Arnold transformation.
该反变换也可作为图像置乱的正变换,相应的反变换就是Arnold变换。
2.
There are many applications using Arnold transformation in digital image watermark and digital image scramble technology,but because of the long periodicity of traditional anti-Arnold transformation,and large time and memory consumption of computation,the further development is limited.
数字图像置乱及数字图像水印技术中广泛应用了Arnold变换,传统的Arnold反变换迭代周期性长,运算耗费大量的时间和内存,限制了它的发展。
3.
In this paper, a definition of image scramble degree is given to form an objective measure, and then anti-Arnold transformation arithmetic is presented with mathematical proof.
本文首先给出了一个图像置乱度的定义,然后提出了一种Arnold反变换算法,并进行了数学推导。
补充资料：核医学数字图像处理
核医学数字图像处理
核医学术语。为了提高图像质量，对图像或功能性曲线进行的数学计算。数字图像处理的内容主要包括：场不均匀度校正、数字图像平滑处理、快速傅立叶变换与数字滤波、多幅图像之间的算术运算、相关计算、体层图像重建、兴趣区设置、动态曲线形成、曲线拟合和核医学参数的定量计算等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条