DIGITAL_WATERMARKING

作品数：67被引量：95H指数：5
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相关作者：张达治孙晓燕邵辰陈立全卢苗更多>>
相关机构：湖南大学华中科技大学华中师范大学吉林大学更多>>
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相关基金：国家自然科学基金国家高技术研究发展计划福建省自然科学基金北京市自然科学基金更多>>
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Asymptotically Optimal Detection of DCT-Domain Watermarks Using an Approximate Alpha-Stable Prior
《Chinese Journal of Electronics》2009年第2期335-337,共3页SUN Zhongwei WU Juying GUO Qingrui 
This paper proposes an asymptotically optimal watermark detector in Discrete cosine transform （DCT） domain images. The Gaussian mixture model as an analytical approximation of alpha-stable distribution is chosen to ...
关键词：Alpha-stable distribution Gaussian mixture model Digital watermarking Weak signal detection. 
Gray-level Digital Watermarking for Volume Data
《Chinese Journal of Electronics》2006年第3期467-471,共5页LIU Wang SUN Shenghe 
With the rapid development of computer multimedia, how to protect digital products from being copied, pirated and juggled has been an urgent problem in the information security field. Digital watermarking is a new met...
关键词：Digital watermarking Volume data 3D-Discrete wavelet transform （3D-DWT） 3D-Discrete cosine transform （3D-DCT） Robust. 
Multipurpose Watermarking Algorithm for Secret Communication被引量：3
《Chinese Journal of Electronics》2006年第1期79-84,共6页LU Zheming LI Suzhi 
This work is supported by the National Natural Science Foundation of China（No.60272074）.
Recently, with the advent and popularity of digitization and the Internet, information accessing has become a very important problem. Among that, secret communication will surely be one of the pivotal problems of futu...
关键词：Digital watermarking Multipurpose watermarking Secret communication 
Wavelet Digital Watermarking with Unsupervised Learning被引量：5
《Chinese Journal of Electronics》2005年第1期10-14,共5页SHEKun HUANGJuncai ZHOUMingtian 
In this paper a novel technique for the digital watermarking of still color images based on the concept of color space transform, wavelet fusion and image denoising is presented. Our algorithm transforms R, G, B color...
关键词：数字水印 色隙变换 ICA 图像噪声 小波变换 
Detect Image Tamper by Semi-Fragile Digital Watermarking被引量：3
《Chinese Journal of Electronics》2004年第1期54-57,共4页LIUFeilong WANGYangsheng 
To authenticate the integrity of image while resisting some valid image processing such as JPEG compression, a semi-fragile image watermarking is described. Image name, one of the image features, has been used as the ...
关键词：数字水印 图像完整性 半易碎图像 刻度量化 
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