提出了一种新的基于图像复杂度的隐写算法.该算法充分利用了复杂度高的图像,包含更多的信息,因而能承载更多秘密信息的特点,将图像划分为3×3的图像块,借助图像块的信息熵和对比度描述图像块的复杂度,根据各块复杂度统计值确定阈值,以判定各块复杂度高低,并针对不同复杂度的图像块进行不同强度的嵌入,实现了基于图像复杂度的隐写算法.性能分析与实验对比表明,在相同的嵌入率下,该算法具有较高峰值信噪比和较强的统计安全性.
参考文献
| [1] | Kawaguchi E,Eason R O.Principle and application of BPCS-steganography[J].Proceedings of SPIE:Multimedia Systems and Applications,1998,3528:464-472. |
| [2] | BenderW,Gruhl D,Morimoto N,et al.Techniques for data hiding[J].IBM System Journal,1996,35 (3,4):313-336. |
| [3] | Wu D C,Tsai W H.A steganographic method for images by pixel-value differencing[J].Pattern Recognition Letters,2003,24:1613-1626. |
| [4] | Zhang X,Wang S.Vulnerability of pixel-value differencing steganography to historgram.[J].Pattern Recognition Letters,2004,25:331-339. |
| [5] | Wu H C,Wu N I,Tsai C S,et al.Image steganographic scheme based on pixel-value differencing and LSB replacement methods[J].IEE Proc.Image Signal Process,2005,152(5):611-615. |
| [6] | Yang C H,Weng C Y,Wang S J,et al.Varied PVD+ LSB evading detection programs to spatial domain in data embedding systems[J].The Journal of Systems and Software,2010,83:1635-1643. |
| [7] | Lin C C.An information hiding scheme with minimal image distortion[J].Computer Standards & Interfaces,2011,33:477-484. |
| [8] | Schaefer G,Stich M.UCID-An uncompressed colour image database[R].Technical Report,UK:School of Computing and Mathematics,Nottingham Trent University,2003. |
| [9] | Pevny T,Bas P,Fridrich J.Steganalysis by subtractive pixel adjacency matrix[C]//Proceedings of the 11th ACM Multimedia & Security Workshop,Princeton,NJ:ACM,2009:75-84. |
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