| 利用边缘像素负载信息的二值图像密写 |
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| 引用本文： | 梁光岚,王朔中,张新鹏.利用边缘像素负载信息的二值图像密写[J].上海大学学报(英文版),2007,11(3):272-277. |
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| 作者姓名： | 梁光岚 王朔中 张新鹏 |
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| 作者单位： | School of Communication and Information Engineering Shanghai University，Shanghai 200072，P. R. China，School of Communication and Information Engineering，Shanghai University，Shanghai 200072，P. R. China，School of Communication and Information Engineering，Shanghai University，Shanghai 200072，P. R. China |
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| 摘 要： | We present a novel scheme for embedding secret data into a binary image without introducing noticeable artifacts. Unlike some block-based methods, the proposed scheme encodes the secret bits directly into boundary pixels by checking each pixel of the cover image in a pseudo-random order for embedding eligibility. A set of rules ensures correct identification of data-carrying pixels in blind extraction. The proposed scheme does not generate isolated dots, and can incorporate various coding methods such as matrix encoding to further improve the embedding performance. It is shown that up to one fourth of the boundary pixels may be used to carry secret data. Experimental results indicate that the method can achieve good visual quality with fairly large data capacity.
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| 关 键 词： | 二进制图像 边缘像素 嵌套适应性 密码 数据传输 |
| 文章编号： | 10.1007/s11741-007-0317-2 |
| 收稿时间： | 12 November 2006 |
| 修稿时间： | 2006-11-122007-06-08 |
Steganography in binary image by checking data-carrying eligibility of boundary pixels |
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| LIANG Guang-lan,WANG Shuo-zhong,ZHANG Xin-peng.Steganography in binary image by checking data-carrying eligibility of boundary pixels[J].Journal of Shanghai University(English Edition),2007,11(3):272-277. |
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| Authors: | LIANG Guang-lan WANG Shuo-zhong ZHANG Xin-peng |
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| Institution: | School of Communication and Information Engineering,Shanghai University,Shanghai 200072,P.R.China |
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| Abstract: | We present a novel scheme for embedding secret data into a binary image without introducing noticeable artifacts. Unlike some block-based methods, the proposed scheme encodes the secret bits directly into boundary pixels by checking each pixel of the cover image in a pseudo-random order for embedding eligibility. A set of rules ensures correct identification of data-carrying pixels in blind extraction. The proposed scheme does not generate isolated dots, and can incorporate various coding methods such as matrix encoding to further improve the embedding performance. It is shown that up to one fourth of the boundary pixels may be used to carry secret data. Experimental results indicate that the method can achieve good visual quality with fairly large data capacity. |
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| Keywords: | binary image steganography embedding eligibility boundary pixel |
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