Title
Steganalysis for calibrated and lower embedded uncalibrated images
Abstract
The objective of steganalysis is to detect messages hidden in a cover images, such as digital images. The ultimate goal of a steganalyst is to extract and decipher the secret message. In this paper, we present a powerful new blind steganalytic scheme that can reliably detect hidden data with a relatively small embedding rate in JPEG images as well as using a technique known as calibration. This would increase the success rate of steganalysis by detecting data in transform domain. This scheme is feature based in the sense that features that are sensitive to embedding changes are being employed as means of steganalysis. The features are extracted in DCT domain. DCT domain features have extended DCT features and Markovian features merged together in calibration technique to eliminate the drawbacks of both(inter and intra block dependency) respectively. For the lesser embedding rate, the features are considered separately to evolve a better classification rate. The blind steganalytic technique has a broad spectrum of analyzing different embedding techniques The feature set contains 274 features by merging both DCT features and Markovian features. The extracted features are being fed to a classifier which helps to distinguish between a cover and stego image. Support Vector Machine is used as classifier here.
Year
DOI
Venue
2011
10.1007/978-3-642-27242-4_34
SEMCCO (2)
Keywords
Field
DocType
small embedding rate,dct feature,better classification rate,blind steganalytic technique,different embedding technique,dct domain,dct domain feature,success rate,lesser embedding rate,lower embedded uncalibrated image,embedding change,calibration,support vector machine,dct,steganalysis,markov
Computer science,Discrete cosine transform,Digital image,Artificial intelligence,Classifier (linguistics),Computer vision,Steganography,Embedding,Pattern recognition,Support vector machine,JPEG,Steganalysis,Machine learning
Conference
Volume
ISSN
Citations 
7077
0302-9743
0
PageRank 
References 
Authors
0.34
4
3
Name
Order
Citations
PageRank
Deepa D. Shankar100.68
T. Gireesh Kumar243.18
Hiran V. Nath3131.69