基于幻方变换的图像置乱新算法  

A new image scrambling algorithm based on magic square transform

作　　者：叶满珠[1] 廖世芳[2] 王新芳[2] 

机构地区：[1]陕西铁路工程职业技术学院,陕西渭南714000 [2]咸阳师范学院,陕西咸阳712000

出　　处：《自动化与仪器仪表》2016年第2期216-218,共3页Automation & Instrumentation

基　　金：陕西铁路工程职业技术学院专项科研基金项目(2012-10);咸阳师范学院专项科研基金项目(13XSYK029)

摘　　要：传统的幻方变换的图像置乱算法是将图像中像素的位置重新排列,从而使原始图像变换成一个杂乱无章的新图像,但通过实验证明传统的幻方变换置乱不但置乱效果不佳,且同其它图像位置置乱方法一样具有图像本身的直方图不发生改变的缺点,而灰度直方图又是衡量一幅图像的重要特征,这对于安全性要求高的领域显然使用时就受到限制。针对以上存在的问题,本文提出了一种基于幻方变换的新的图像置乱改进算法。该算法可以有效的提高图像置乱效果,同时在一定程度上提高了图像在传输过程中的安全性。Traditional image scrambling algorithm based on magic square transform is one scrambling algorithm which is accomplished by arranging the pixels position in original image repeatedly. Experimental results demonstrate that traditional image scrambling algorithms based on magic square transform is insufficient,meanwhile which has the common weakness. gray histogram is an important feature to measure a image. So those methods of image scrambling can not arrive at our desirable demand. In view of the above existing problems,this paper proposes a new improved image scrambling algorithm based on magic square transform. The algorithm can improve the effect of image scrambling effectively,meanwhile it improves the effect and security of image scrambling.

关 键 词：幻方变换 图像置乱 Zig-Zag扫描 交叉换位 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]