| 基于广义高斯分布的彩色图像空域隐写检测算法 |
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| 引用本文： | 翟卫东,吕述望,刘振华.基于广义高斯分布的彩色图像空域隐写检测算法[J].通信学报,2004,25(2):33-42. |
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| 作者姓名： | 翟卫东 吕述望 刘振华 |
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| 作者单位： | 中国科技大学研究生院,信息安全国家重点实验室,北京,100039 |
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| 基金项目： | 国家“973”重点基础研究发展规划基金资助项目(TG1999035804) |
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| 摘 要： | 揭示了彩色图像相邻像素差服从或2倍近似服从广义高斯分布，且均值为零的统计规律；指出了目前常用隐写作业模式一代替作业模式在图像隐写方面的本质弱点。同时，本文针对彩色图像的空域隐写提出了一种结合稳健性统计特性和易损性统计特性为一体的快速盲检测算法，该算法检测效率高，速度快，便于实用。
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| 关 键 词： | 信息隐藏 TAP算法 广义高斯分布 隐写检测算法 |
| 文章编号： | 1000-436X(2004)02-0033-10 |
| 修稿时间： | 2003年2月17日 |
Spatial stego-detecting algorithm in color images based on GGD |
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| ZHAI Wei-dong,LV Shu-wang,LIU Zhen-hua.Spatial stego-detecting algorithm in color images based on GGD[J].Journal on Communications,2004,25(2):33-42. |
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| Authors: | ZHAI Wei-dong LV Shu-wang LIU Zhen-hua |
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| Abstract: | A new spatial stego-detecting algorithm is proposed. The algorithm which detects LSB embedding in color image is based on both robustly and fragilely statistical characteristics. It has a high detecting speed and can be implemented conveniently. Not only it has a good extension but also its parameters can be easily adjusted. Meanwhile, the article indicates some statistical regularity of natural color images such as the difference of one pixel and its adjacent pixels which obeys the generalized Gaussian distribution(GGD), with zero mean value. It also indicates the essential difference of bit-replacement and arithmetic addition. |
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| Keywords: | information hiding TAP algorithm generalized Gaussian distribution stego-detecting algorithm |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
