Conference Proceeding

Model based steganalysis

Nat. Lab. of Pattern Recognition, Chinese Acad. of Sci., Beijing, China
Proceedings / ICIP ... International Conference on Image Processing 11/2004; DOI:10.1109/ICIP.2004.1421642 ISBN: 0-7803-8554-3 pp.2625 - 2628 Vol. 4 In proceeding of: Image Processing, 2004. ICIP '04. 2004 International Conference on, Volume: 4
Source: IEEE Xplore

ABSTRACT In this paper, we consider a new method for performing steganalysis using a statistical model of the cover medium. Using model based methodology, examples of detecting secret message and estimating the secret message length of bit-streams embedded using JSteg-like steganography and quantization index modulation are proposed. This steganalysis technique is based on the model of statistical distribution of quantized DCT coefficients. The histogram of cover image and "shrinkage histogram" are estimated from stego image using the statistical model. Then the secret message is detected and the secret message length is estimated. The methodology described in this paper is a framework which can also be applied to virtually any type of media such as JPEG2000 file format embedding.

0 0
 · 
1 Bookmark
 · 
28 Views
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.

Keywords

bit-streams
 
detecting secret message
 
JSteg-like steganography
 
media
 
new method
 
quantization index modulation
 
quantized DCT coefficients
 
secret message
 
secret message length
 
statistical distribution
 
statistical model
 
steganalysis
 
steganalysis technique
 
stego image