三维Hilbert曲线在图像置乱中的应用  

Application of Three-dimensional Hilbert Curve in Image Scrambling

作　　者：万里红[1] 孙燮华[1] 林旭亮[1] 

机构地区：[1]中国计量学院信息工程学院,杭州310018

出　　处：《计算机工程》2011年第2期227-228,231,共3页Computer Engineering

基　　金：国家自然科学基金资助项目"基于可编程图形处理器的流场高性能真实感研究"(10702067)

摘　　要：研究三维Hilbert曲线基元在空间中的24种形态,提出一种基于基元分形走向的n阶三维Hilbert曲线生成算法,将图像像素点存入到一个空间立方体数组中,按三维Hilbert曲线遍历顺序对空间立方体中的像素点进行顺序扫描存储,从而实现图像置乱处理。实验结果表明,相比二维Hilbert曲线,三维Hilbert曲线置乱具有更强的图像置乱度和更高的图像加密安全性。This paper researches twenty-four space forms of three-dimensional Hilbert curve primitives, and proposes a n-order three-dimensional Hilbert curve generation algorithm based on the orientation of the primitives. It puts the pixels into a space cube array, sequentially scans them and stores them based on the traversal sequence of three-dimensional Hilbert to realize image scrambling. Experimental results show that three-dimensional Hilbert curve scrambling has a stronger image scrambling degree and higher encryption security compared with the two-dimensional Hilbert curve.

关 键 词：三维Hilbert曲线 基元 图像置乱 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]