[1]柯琦,廖琪男,甘宇健,等.一种新的二值图像特大容量信息隐藏算法[J].计算机技术与发展,2018,28(07):113-116.[doi:10.3969/ j. issn.1673-629X.2018.07.024]
　KE Qi,LIAO Qi-nan,GAN Yu-jian,et al.A Novel Super-high Capacity Information Hiding Algorithm for Binary Images[J].,2018,28(07):113-116.[doi:10.3969/ j. issn.1673-629X.2018.07.024]
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一种新的二值图像特大容量信息隐藏算法()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
28
期数:
2018年07期
页码:
113-116
栏目:
安全与防范
出版日期:
2018-07-10

文章信息/Info

Title:
A Novel Super-high Capacity Information Hiding Algorithm for Binary Images
文章编号:
1673-629X(2018)07-0113-04
作者:
柯琦; 廖琪男; 甘宇健; 李国祥
广西财经学院 计算机系,广西 南宁 530003
Author(s):
KE Qi; LIAO Qi-nan; GAN Yu-jian; LI Guo-xiang
Department of Computer Science,Guangxi University of Finance and Economics,Nanning 530003,China
关键词:
二值图像; 信息隐藏; 混沌序列; 置乱
Keywords:
binary image; information hiding; chaotic sequence; shuffly
分类号:
TP391
DOI:
10.3969/ j. issn.1673-629X.2018.07.024
文献标志码:
A
摘要:
为了提高二值图像的信息隐藏容量和保持载密图像良好的视觉效果,避免图像因分块后出现“黑白孤岛点”现象,提出一种基于分块和混沌序列的二值图像信息隐藏算法。 首先,应用 Logistic 混沌序列将图像调制,使其像素位置和像素值随机分布,信息0、1 像素随机分布后可使得2×2 分块图像的像素全为0 或1 的概率最小。 其次,将信息图像和二值图像以 2×2 分块,把非全0 或非全1 的信息块直接嵌入到二值图像的可嵌随机块中;而将全0 或全1 信息块的其一像素值修改为二值图像可嵌随机块对应像素的像素值后再进行嵌入。 实验结果表明,该算法的图像像素改变量少且隐藏容量大,信
息嵌入容量为可嵌入块的 100%,提取的信息误码率低,载密图像失真小、安全性高。
Abstract:
In order to improve the information hiding capacity of binary image,maintain a good visual effect of encryption image and avoid the phenomenon of " black and white island" ,we present a binary image information hiding algorithm based on blocking and chaotic sequences. It first uses the Logistic chaotic sequence to modulate the image so that its pixel position and pixel values are randomly distributed. The probability that the pixels of the 2×2 blocking image are all zero or all one is minimized when the information pixels are randomly distributed. And then the information image and the binary image are divided into 2×2 blocks,the non-all-zero or non-all-one information blocks are directly embedded in the embeddable random blocks of the binary image. Those all zero or all one blocks need to modify one of the pixel values to the corresponding pixel of the binary image and then embedded. The experiment shows that the algo-
rithm can significantly improve the hiding information capacity when changing fewer pixels value of the image,and its information embedding capacity is 100% of the embedded block. It also can achieve small image distortion with low bit error rate and better security.

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更新日期/Last Update: 2018-09-04