计算机技术与发展2015，Vol.25Issue(12)：52-55,59,5.DOI:10.3969/j.issn.1673-629X.2015.12.012
基于图像分区的置乱算法
Algorithm of Image Scrambling Based on Segmentation
摘要
Abstract
Traditional image scrambling algorithms are accomplished by arranging the pixels position in original image repeatedly,finally a new disorder image is obtained. But the value of original image pixels are not changed,so the histogram after encryption stays still, while the histogram reflects the statistical characteristics of an image,because above reasons only this kind of scrambling algorithm cannot meet the desirable demand in some professional fields with high requirements. Considering all above problems, present a new image scrambling algorithm based on segmentation. First of all,segmenting the original image,the different image scrambling algorithms are ap-plied,then image segments are scrambled,after that,the XOR operation to two adjacent pixels is applied to scramble the frequency do-main,the number of iterations and the selection of scrambling algorithms are determined by the Logistic equation. The experimental results show that compared with some traditional algorithms,this algorithm scrambles faster,has better encryption effect and higher security.关键词
图形加密/图像分区/置乱算法/LogisticKey words
image encryption/image segmenting/scrambling algorithm/Logistic分类
信息技术与安全科学引用本文复制引用
朱晓升,廖晓峰..基于图像分区的置乱算法[J].计算机技术与发展,2015,25(12):52-55,59,5.基金项目
国家自然科学基金资助项目(6147233) （6147233）
