[1]卢曾新,曲大鹏,范铁生. 基于多普勒波和小波变换的图像置乱算法[J].计算机技术与发展,2015,25(07):138-141.
　LU Zeng-xin,QU Da-peng,FAN Tie-sheng. Image Scrambling Algorithm Based on Doppler and Wavelet Transform[J].,2015,25(07):138-141.
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 基于多普勒波和小波变换的图像置乱算法()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
25
期数:
2015年07期
页码:
138-141
栏目:
应用开发研究
出版日期:
2015-07-10

文章信息/Info

Title:
 Image Scrambling Algorithm Based on Doppler and Wavelet Transform
文章编号:
1673-629X（2015)07-0138-04
作者:
 卢曾新; 曲大鹏; 范铁生
 辽宁大学 信息学院
Author(s):
 LU Zeng-xin; QU Da-peng; FAN Tie-sheng
关键词:
 ; 图像置乱; 多普勒波; 小波变换; 像素值置乱; 像素位置置乱
Keywords:
 ; image scrambling; Doppler wave; wavelet transform; pixel values scrambling; pixel position scrambling
分类号:
TP301.6
文献标志码:
A
摘要:
 由于图像信息在网络存储和传输的过程中易受到非法攻击者的截取，人们对图像信息的安全性和有效性提出了较高的要求，因此，对图像进行加密置乱就显得特别重要。文中提出了一种新的图像置乱算法，其基本思想是根据多普勒波和小波变换的特点，先对图像进行分块，然后对分块进行多尺度小波变换，对所有小波系数运用多普勒波进行像素值置乱，再对低频系数运用多普勒波生成多项式进行像素位置置乱。通过仿真实验表明，该算法能达到良好的置乱效果，充分改变了图像的统计特征，且不存在周期性恢复的问题，能抵抗一定的剪切、滤波和加噪等攻击，因此可以有效地用于图像加密。
Abstract:
 Since the image information is vulnerable to the illegal attack interception in the network storage and transmission process,lead-ing to more demanding for the safety and effectiveness of the image information,therefore,the chaotic image encryption device is particu-larly of great importance. A new image scrambling algorithm,based on Doppler wave and wavelet transform,is proposed in this paper. Firstly,divide the image into small blocks,then the block is processed by multiscale wavelet transform,its wavelet coefficients of pixel values scrambling by Doppler,then use Doppler generator polynomial to carry out pixel position scrambling on low-frequency coeffi-cients. Experimental results show that the algorithm can achieve better scrambling effect,changing the statistical property of the image, without problem of cyclical recovery,resistant to attacks of shearing,filtering and adding noise,which can be applied to image encryption efficiently.

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更新日期/Last Update: 2015-09-07