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《Computer Engineering and Applications》 2006-26
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Digital Watermarking Algorithm Based on 2-D Walsh and Slant Transforms

ZHAO Jing SHI Bao-chang (Department of Mathematics,Huazhong University of Science and Technology,Wuhan 430074)  
In this paper,we discuss a new digital watermarking algorithm based on two-dimension Walsh and Slant transforms for digital images.These transforms are both orthogonal and have simple values and in-place algorithms.So they can be implemented fast and are very suitable for in-time signal processing.The results of the experiments show that images which are embedded with the watermark is not only invisible to the image but also robust to the normal attacks,especially for the images that are changed gradually in brightness.Moreover,it is a blind watermark which needn't the original image when distilled.
【Fund】: 国家自然科学基金资助项目
【CateGory Index】: TP309
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【Citations】
Chinese Journal Full-text Database 4 Hits
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【Co-citations】
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1 WANG Guang-chao,LIAO Guo-yong(School of Natural Science,East China Jiaotong University,Nanchang 330013,China);Fast Algorithms of Generalized Walsh Function for Hybrid Carry System[J];Journal of East China Jiaotong University;2006-01
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8 ZHENG Qiong1,SHI Bao-chang21.Department of Mathematics,Huazhong University of Science and Technology,Wuhan 430074,China 2.Parallel Computing Institute,Huazhong University of Science and Technology,Wuhan 430074,China;Generalized parametric P-ordered slant transforms with applications[J];Computer Engineering and Applications;2007-09
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