New method of digital image scrambling based on binary tree generated by chaotic sequences

被引：2
|
作者：
Zhang, Han [1 ]
Huang, Jicai [2 ]
Li, Zhaohui [1 ]
机构：
[1] Nankai Univ, Coll Informat Tech Sci, 94 Weijin Rd, Tianjin 300071, Peoples R China
[2] Cent China Normal Univ, Sch Math & Stat, Wuhan 430079, Hunan, Peoples R China
来源：
REMOTE SENSING AND GIS DATA PROCESSING AND APPLICATIONS; AND INNOVATIVE MULTISPECTRAL TECHNOLOGY AND APPLICATIONS, PTS 1 AND 2 | 2007年 / 6790卷
关键词：
image scrambling; binary tree; inorder traversal; conservative system; chaotic sequences;
D O I：
10.1117/12.751334
中图分类号：
TP7 [遥感技术];
学科分类号：
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要：
The paper presented a method of digital image scrambling based on binary tree generated by chaotic sequences. First, conservative chaos system is iterated to produce chaotic sequences after given initial value and parameters. Then, binary tree is generated by chaotic sequences according to certain rule. At last, the order received by inorder traversing the binary tree is used to transform order of pixels. In this method of digital image scrambling the secret key is initial value and parameters. This method is flexible to use because the secret key is separated from algorithms. It remedies inadequateness of flexibility in other algorithms merely adopting fixed binary tree. Some evaluation indexes show that the method has good effect of image scrambling.
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页数：6
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