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《Computer Engineering and Applications》 2004-02
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Application of Haar Type Orthogonal Transforms in the Digital Watermarking

Xiang Xiuqiao Shi Baochang(Department of Mathematics,Huazhong University of Science and Technology,Wuhan430074)  
Haar type orthogonal transforms are applied in digital watermarking by the technique of variable scales and different transforms in this paper,namely,the size of subblocks is not all the same with the same blocks,fast transforms adopt are not all the same even to subblocks with the same size either.The experiment results show that the proposed policy of dividing and rule is not only invisual to the image but also robust to attack,at the same time ,The method has high compression ratio.Furthermore,it's calcaulating quantity is very simple as well as it's computation speed is very fast because it's algorithm is in-place and special fit to parallel computation.Moreover,the image only having two values is taken as blind watermarking.
【Fund】: 国家863高技术研究发展计划(编号:863-306-ZD-01-08)资助项目
【CateGory Index】: TP309
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【References】
Chinese Journal Full-text Database 3 Hits
1 SHI Jing1,LIN Ke-zheng1,MAO Jun-jie2(1.College of Computer Science & Technology,Harbin Univ.Sci.Tech.,Harbin 150080,China;2.Dep.of Computer,Beijing University of Technology,Beijing 100022,China);Image Digital Watermarking Algorithm Based on Double Transforms[J];Journal of Harbin University of Science and Technology;2007-06
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 Li Xueming(School of Information Engineering of BUPT,Beijing100876);Implementation and Performance Analysis for Adaptive Block Size Image Compression[J];Computer Engineering and Applications;2003-01
【Co-references】
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【Secondary References】
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1 LIN Ke-zheng,SHI Jing,TANG Yuan-xin(School of Computer Science and Technology,Harbin University of Science and Technology,Harbin 150080,China);Research on Color Watermarking Algorithm Based on Video Frames[J];Journal of Harbin University of Science and Technology;2009-06
【Secondary Citations】
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1 Shi Baochang,Wang Nengchao (Parallel Computing Institute, Huazhong University of Science and Technology, Wuhan, 430074);THE EVOLVING GENERATION AND FAST ALGORITHMS OF SLANT TRANSFORM[J];Mathematica Numerica Sinica;2000-04
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