文献类型：会议论文

英文题名：The fast realization of image scrambling algorithm using multi-dimensional orthogonal transform

作者：Li, Shuhong[1];Wang, Junmin[1];Gao, Xing[2]

第一作者：李淑红

通讯作者：Li, SH[1]

机构：[1]Henan Univ Finance & Econ, Sch Informat, Wenhua Rd 80, Zhengzhou 450002, Peoples R China;[2]C TECH CO LTD, Tokyo 1630806, Japan

第一机构：河南财经政法大学计算机与信息工程学院

通讯机构：[1]corresponding author), Henan Univ Finance & Econ, Sch Informat, Wenhua Rd 80, Zhengzhou 450002, Peoples R China.|[1048412]河南财经政法大学计算机与信息工程学院;[10484]河南财经政法大学;

会议论文集：1st International Congress on Image and Signal Processing

会议日期：MAY 27-30, 2008

会议地点：Sanya, PEOPLES R CHINA

语种：英文

外文关键词：Image enhancement

摘要：We propose the fast algorithms for image scrambling using multi-dimensional orthogonal transform. Tire multidimensional orthogonal sequence can provide an orthogonal transform for image scrambling and descrambling. This scrambling method has the characteristic of high security because the keys for scrambling and descrambling are a set of the parameters to generate the orthogonal sequence. But the disadvantage of this method is that the computing complexity is high. In order to save the computing time, serial and parallel fast algorithms are proposed. When using these fast algorithms, another image can be used as a key to improve the security. For a binary image and a gray scale image, different sequences and fast algorithms are used to scramble. The experimental results show that these fast algorithms can effectively decrease the computing complexity and the histograms of digital image after scrambling have random Gaussian distribution.