| DCT图像信息隐藏的系数动态选择策略 |
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| 引用本文： | 郑国伟,王小铭. DCT图像信息隐藏的系数动态选择策略[J]. 现代计算机, 2008, 0(7) |
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| 作者姓名： | 郑国伟 王小铭 |
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| 作者单位： | [1]澳门广大中学,澳门 [2]华南师范大学计算机学院,广州510631 |
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| 摘 要： | 提出一种DCT图像信息隐藏的系数动态选择策略，并不固定系数的住置，而是对每一幅载体图像都进行分析，找出最合适该图像的中频系数来隐藏信息。实验结果显示，系数动态选择策略能提高伪装图像的视觉效果，即透明性，同时也能降低误码率。
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| 关 键 词： | 信息隐藏 隐写术 离散余弦变换 |
A Dynamic Choosing Strategy of Coefficients for DCT Image Information Hiding |
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| Cheang Kuok Wai,WANG Xiao-ming. A Dynamic Choosing Strategy of Coefficients for DCT Image Information Hiding[J]. Modem Computer, 2008, 0(7) |
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| Authors: | Cheang Kuok Wai WANG Xiao-ming |
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| Affiliation: | Cheang Kuok Wai1,WANG Xiao-ming2 (1. Kwong Tai Middle School Macau,Macau,2. Computer School,South China Normal University,Guangzhou 510631) |
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| Abstract: | Proposes a new strategy for choosing the positions of the middle frequency coefficients of DCT transformed field dynamically, this strategy analyses every cover image separately to find the best position of the middle frequency coefficients for hiding. Further, experimental results show that the strategy can improve the visual quality of the stego cover image, i.e. transparency of the hiding data, and the strategy can also decrease the bit error rate. |
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| Keywords: | Information Hiding Steganography Discrete Cosine Transform |
| 本文献已被 CNKI 维普 等数据库收录！ |
