| 一种基于二维DCT变换的图像信息隐藏方法 |
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| 引用本文： | 孟宪浩,吕绪良,蔡云骧,贾云鹤.一种基于二维DCT变换的图像信息隐藏方法[J].光电技术应用,2009,24(3):63-66. |
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| 作者姓名： | 孟宪浩 吕绪良 蔡云骧 贾云鹤 |
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| 作者单位： | 解放军理工大学,江苏,南京,210007 |
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| 摘 要： | 提出了一种基于二维DCT变换的图像信息隐藏方法,经过二维DCT变换后的图像能量集中在低频部分,考虑到人眼的视觉特性,图像的高频部分可视为视觉冗余部分,可以把有用信息隐藏在变换载体图像的高频部分,即以牺牲图像高频信息来达到信息隐藏的效果,通过MATLAB实现这一思想,对隐藏后的图像质量做了特征分析,并对下一步实验做出了设想.
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| 关 键 词： | 信息隐藏 DCT变换 视觉特性 |
One Method of the Image Information Hiding Based on Two-Dimensional DCT Transform |
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| MENG Xian-hao,LV Xu-liang,CAI Yun-xiang,JIA Yun-he.One Method of the Image Information Hiding Based on Two-Dimensional DCT Transform[J].Electro-Optic Technology Application,2009,24(3):63-66. |
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| Authors: | MENG Xian-hao LV Xu-liang CAI Yun-xiang JIA Yun-he |
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| Affiliation: | MENG Xian-hao,LV Xu-liang,CAI Yun-xiang,JIA Yun-he(PLA University of Science and Technology,Nanjing 210007,China) |
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| Abstract: | A method of the image information hiding based on two-dimensional DCT transform is proposed.After the two-dimensional DCT transform being made,the image energy concentrates in low-frequency while the high-frequency part can be regarded as vision redundant,considering the visual characteristics of the man's eyes,the useful information can be hided in the transformation of the vector image's high-frequency part,namely by sacrificing the image's high frequency information to achieve the effect of information h... |
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| Keywords: | information hiding DCT transformation visual characteristic |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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