1) pixel permutation
像素置乱
1.
In order to solve the problem of the insuffieient watermark capacity in the current algorithm of frequency domain transformation,A digital watermarking algorithm based on pixel permutation and dual sequence pseudo random noise spread spectrum is proposed in this paper.
针对目前比较流行的频域(或变换域)水印算法中存在的水印容量不足的问题,提出了基于像素置乱的双伪随机序列扩频水印算法,提高了水印的容量,具有较好的鲁棒性和抗各种攻击的能力。
2.
Some techniques, such as pixel permutation technique, image secret segmentation technique, image secret sharing technique, and modern cryptography mechanism-based and chaotic dynamics-based image encryption techniques, are illustrated.
综述了图像加密技术的进展状况 ,对其中的若干图像加密技术 ,如图像像素置乱技术、基于秘密分割和秘密共享的图像加密技术、基于现代密码学体制的图像加密技术以及基于混沌动力学体制的图像加密技术的原理、特点与算法实现都做了阐述 ,并对这些图像加密技术做了分析与比较 ,指出了它们各自的优缺点和应用局限性 ,并讨论了今后的发展方向 。
2) optical pixel scrambling device
光学像素置乱器
3) 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
4) 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。
5) 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:二风诗·乱风诗五篇·至乱
【诗文】:
嘻乎王家,曾有凶王,中世失国,岂非骄荒。复复之难,
令则可忘。
嘻乎乱王,王心何思?暴淫虐惑,无思不为;生人冤怨,
言何极之。
【注释】:
【出处】:
全唐诗:卷240_7
嘻乎王家,曾有凶王,中世失国,岂非骄荒。复复之难,
令则可忘。
嘻乎乱王,王心何思?暴淫虐惑,无思不为;生人冤怨,
言何极之。
【注释】:
【出处】:
全唐诗:卷240_7
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