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Cellular automata-based approach for digital image scrambling

International Journal of Intelligent Computing and Cybernetics 2018年第3期11卷 353-370页

作者： Zubair Jeelani Fasel Qadir Department of Computer Science University of KashmirSrinagarIndia

Purpose–The purpose of this paper is to investigate two-dimensional outer totalistic cellular automata(2D-OTCA)rules other than the Game of Life rule for image *** paper presents a digital image scrambling(DIS)technique based on 2D-OTCA for improving the scrambling *** comparison of scrambling performance and computational effort of proposed technique with existing CA-based image scrambling techniques is also ***/methodology/approach–In this paper,a DIS technique based on 2D-OTCA with von Neumann neighborhood(NvN)is *** of three important cellular automata(CA)parameters on gray difference degree(GDD)is analyzed:first the OTCA rules,afterwards two different boundary conditions and finally the number of CA generations(k)are *** authors selected a random sample of gray-scale images from the Berkeley Segmentation Data set and Benchmark,BSDS300(***/Research/Projects/CS/vision/bsds/)for the ***,the CA is setup with a random initial configuration and the GDD is computed by testing all OTCA rules,one by one,for CA generations ranging from 1 to 10.A subset of these tested rules produces high GDD values and shows positive correlation with the k ***,this sample of rules is used with different boundary conditions and applied to the sample image data set to analyze the effect of these boundary conditions on ***,in order to compare the scrambling performance of the proposed technique with the existing CA-based image scrambling techniques,the authors use same initial CA configuration,number of CA generations,k紏10,periodic boundary conditions and the same test ***–The experimental results are evaluated and analyzed using GDD parameter and then compared with existing *** technique results in better GDD values with 2D-OTCA rule 171 when compared with existing *** CPU running time of the proposed algorithm is also considerably small as compa

关键词： Cellular automata image processing Gray difference degree image encryption image scrambling

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Color image scrambling Algorithm Research based on FAN Transform

Color Image Scrambling Algorithm Research based on FAN Trans...

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2011 4th IEEE International Conference on Computer Science and Information Technology(ICCSIT 2011)

作者： Wang Wentao Fan Jing Optoelectronics Information and Communication Engineering College Beijing Information Science and Technology University Beijing China

This paper presents a new method of color image scrambling algorithm based on FAN *** [1] put forward the concept FAN transform,FAN transform is a transformation-set which contains countless transformation matrixes,while Arnold transform is only a special case of *** principle of the new method is to use the diversity of FAN Transform and the properties of color *** the analysis of characteristics of color image,the image can be decomposed into three color components which are red,green and blue *** different transformation matrixes for each color component and do FAN Transforms on them for different *** enhance the encryption strength,hue conversion between the three colors can further strengthen the degree of image *** the three transformed images and make them into one,which is the encrypted *** proposed image encryption does not have information loss and the expansion of transformation types directly improves the encryption *** this above method will increase the difficulty of cracking and improve the security.

关键词： image scrambling FAN Transform color analysis

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一种基于Arnold变换的关系数据水印新算法

一种基于Arnold变换的关系数据水印新算法

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第二十四届中国数据库学术会议

作者：周明王朝坤王建民李德毅清华大学软件学院

1引言数字水印技术作为实现版权保护的有效方法,已经在图像、视频、音频等领域得到了广泛应用,并取得了丰硕的成果。同时,针对关系数据的数字水印技术也逐渐兴起,涌现出一批专门针对关系型

关键词： Digital watermark Numeric relational data Arnold transform image scrambling Robustness

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