1) random scrambling
随机置乱
1.
A random scrambling method was proposed for digital image encryption.
提出了一个用于图像加密的随机置乱算法。
2) random permutation
随机置乱
1.
In some digital image watermarking systems,if the original image is pre-processed with random permutation before embedding and the watermarked image is pre-processed with sharpening before detection,the performance of watermarking can be improved,which means the images can look better,or the veracity rate of detection is higher.
空间域随机置乱和锐化滤波是基本的图像处理方法。
2.
In this paper, we present a novel encryption algorithm for MPEG audio data including all three layers that is based on a random permutation scheme.
本文基于随机置乱提出一个MPEG音频数据的快速加密算法,对一、二、三层的MPEG音频数据均适用。
3) pseudorandom permutation
伪随机置乱
1.
After the pseudorandom permutation, each decomposed layer of the watermark is embedded into the DCT domain of corresponding decomposed layer of the host image.
算法以二值图案作为水印,将原图像和二值水印分别进行不同层次的小波分解,分解后的水印各分量伪随机置乱后分别嵌入到原图像相应分解层各分量的DCT域中。
4) double random scrambling
双随机置乱
1.
In order to overcome these disadvantages,this paper proposes a novel double random scrambling algorithm.
为克服目前基于混沌序列的置乱算法安全性不够高,密钥空间小的缺点,本文提出了一种新的双随机置乱算法。
5) random number scrambling
随机数置乱
6) dual random scrambling
双重随机置乱
1.
A dual random scrambling method based on wavelet transform is proposed for digital image encryption.
提出了一个用于图像加密的基于小波变换的双重随机置乱算法。
补充资料：喧乱
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参考词条