Title :
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
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;
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
DOI :
10.1109/ICCASM.2010.5620767
