A study on dependencies between DCT coefficients for JPEG image steganalysis

Author

Pan, Xiaozhong ; Lei, Yu ; Yang, Xiaoyuan ; Su, Guangwei

Author_Institution

Dept. of Electron. Technol., Eng. Coll. of the APF, Xi´´an, China

Volume

7

fYear

2010

fDate

22-24 Oct. 2010

Abstract

In the paper, a new blind image steganalysis scheme for JPEG image steganography is proposed. Space filling curve is exploited to scan quantized block DCT coefficients. Markov model is applied to model the dependencies between quantized DCT cofficients so as to extract intrablock and interblock transition probability matrices. The experiments on F5, Steghide and MB1 steganography show the method can detect these steganographic methods reliably and the detection accuracy exceeds Pevny´s obviously.

Keywords

Markov processes; discrete cosine transforms; image coding; matrix algebra; probability; DCT coefficient; F5 steganography; JPEG image steganalysis; JPEG image steganography; MB1 steganography; Markov model; Steghide steganography; blind image steganalysis scheme; interblock transition probability matrix; intrablock transition probability matrix; space filling curve; Conferences; Discrete cosine transforms; Transform coding; markov model; space filling curve; steganalysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Application and System Modeling (ICCASM), 2010 International Conference on

Conference_Location

Taiyuan

Print_ISBN

978-1-4244-7235-2

Electronic_ISBN

978-1-4244-7237-6

Type

conf

DOI

10.1109/ICCASM.2010.5620767

Filename

5620767