基于菱形编码和修改量化表的DCT域图像隐写
PDF下载 (444)金 涛,何加铭,杨任尔*.基于菱形编码和修改量化表的DCT域图像隐写[J].宁波大学学报(理工版),2013,27(01):33-36.DOI:
JIN Tao,HE Jia-ming,YANG Ren-er*.Image Steganography Based on Diamond Encoding and Quantization Table Modification in DCT Domain[J].Journal of Ningbo University(Natural Science & Engineering Edition),2013,27(01):33-36.DOI:
| Title: | Image Steganography Based on Diamond Encoding and Quantization Table Modification in DCT Domain |
| 作者: | 金 涛, 何加铭, 杨任尔* |
| Author(s): | JIN Tao, HE Jia-ming, YANG Ren-er* |
| 关键词: | 隐写; 离散余弦变换; 菱形编码; 量化 |
| Keywords: | steganography; DCT; diamond encoding; quantification |
| 分类号: | TP391.7 |
| 文献标识码: | A |
| 摘要: | 为了提高离散余弦变换(DCT)域隐写的嵌入容量, 提出一种基于菱形编码和修改量化表的DCT域图像隐写. 首先将载体图像进行8×8的DCT变换后, 对变换得到的DCT系数采用修改的8×8量化表进行量化, 从而提高了嵌入容量和载密图像的视觉质量. 同时通过改进的菱形编码将8进制的秘密信息嵌入到载体图像量化DCT系数的中频部分, 从而进一步提高了嵌入容量. 实验结果表明: 该隐写算法不但与JPEG压缩标准兼容, 而且有效地提高了嵌入容量. |
| Abstract: | In order to improve embedding capacity of steganography in discrete cosine transform (DCT) Domain, a new image steganography is proposed based on the diamond encoding and quantization table modification. Firstly, the carrier image is transformed by 8×8 block DCT, then the DCT coefficients are quantized using the modified 8×8 quantification table, which increases the embedding capacity and steno-image visual quality. The 8-ary secret image data are embedded in the middle-band of frequency of the carrier image’s DCT coefficients using the modified diamond encoding, then the embedding capacity can thus be further improved. The experimental results show that the proposed method not only maintains good imperceptibility of image after embedding large amount of secret message, but also effectively improves the embedding capacity as well |
| 参考文献 /References: | [1].刘粉林, 刘九芬, 罗向阳等. 数字图像隐写分析[M]. 北京: 机械工业出版社, 2010:49-60. [2].谢建全, 阳春华, 黄大足等. 一种大容量的DCT域信息隐藏算法[J]. 中国图象图形学报, 2009, 14(8):15431546. [3].谢建全, 谢, 黄大足等. 一种抗JPEG压缩的大容量信息隐藏算法[J]. 南京理工大学学报, 2011, 35(2): 258-261. [4].Fridrich J, Goljan M, Hogea D, et al. Quantitative steganalysis: Estimating secret message length[J]. ACM Multimedia Systems Journal, 2003, 9(3):288-302. [5].Chang C C, Chen T S, Chung L Z. A steganographic method based upon JPEG and quantization table modify- cation[J]. Information Sciences, 2002, 141:123-138. [6].Almohammad A. High capacity steganographic method based upon JPEG[C]. Third International Conference on Availability, Reliability and Security. Washington: IEEE Computer Society Press, 2008:544-549. [7].Vongurai N, Phimoltares S. Frequency-based stegano- graphy using 32×32 interpolated quantization table and discrete cosine transform[C]. Computational Intelligence, Modelling and Simulation (CIMSiM), 2012 Fourth International Conference on IEEE, 2012:249-253. [8].Singh S, Siddiqui T J, Singh R, et al. DCT-domain robust data hiding using chaotic sequence[C]. Multimedia Signal Processing and Communication Technologies (IMPACT), 2011 International Conference on. IEEE, 2011:300-303. [9].Chao R M. A novel image data hiding scheme with diamond encoding[J]. EURASIP Journal on Information Security, 2009, 24:658047-658052. [10].Hong W, Chen T S. A novel data embedding method using adaptive pixel pair matching[J]. IEEE Transactions on Information Forensics and Security, 2012, 7(1):176- 184. |
| 备注/Memo: | 收稿日期: 2013?07?20. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/基金项目: 浙江省移动网络应用技术重点实验室项目（2010E10005）; 浙江省新一代移动互联网用户端软件科技创新团队项目（2010R50009）; 浙江省重点科技创新团队项目（2012R10009-11, 2012R10009-20）; 浙江省重大科技专项重点工业项目（2011C11042）.第一作者: 金 涛（1989－）, 男, 浙江杭州人, 在读硕士研究生, 主要研究方向: 图像隐写. E-mail: kingtao01@163.com*通信作者: 杨任尔（1968－）, 男, 浙江宁波人, 副教授, 主要研究方向: 图像处理、视频压缩编码与传输. E-mail: yangrener@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
