NDLI: Modified YASS algorithm with virtual host block selection and model based embedding

Content Provider	IEEE Xplore Digital Library
Author	Li-Hong Ma Xian-Ming Lv Jing Tian
Copyright Year	2012
Description	Author affiliation: Department of Electronic Engineering, Nanyang technological University, Singapore, Singapore (Jing Tian) \|\| School of Electronics and Information Engineering, South China University of Technology, Guangzhou, China 51064 (Li-Hong Ma; Xian-Ming Lv)
Abstract	Yet Another Steganography Scheme (YASS), a promising steganographic scheme for JPEG images which can resist blind steganlysis via embedding data in randomized locations. However, the randomization is not sufficient enough, as some positions are possible to hold host blocks and some are definitely not. Meanwhile, the artifacts introduced by quantization index modulation (QIM) embedding led to the weakness for its unsafety. In this paper, to overcome these drawbacks, we present a modified YASS scheme incorporated with further randomized virtual host block selection and the model based embedding which permutes secret bits by a low-density cover probability to minimize differences between the distribution of a cover image and that of the stego. Consequently, the proposed scheme can survive the attack made by the specific steganalyzer for YASS. Experimental results demonstrate that the detection probability achieved by the specific steganalyser on our proposed method is less than 59%, while is about 95% and above on YASS.
Starting Page	73
Ending Page	78
File Size	240156
Page Count	6
File Format	PDF
ISBN	9781457721182
e-ISBN	9781457721199
DOI	10.1109/ICIEA.2012.6360700
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-18
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Feature extraction Transform coding Discrete cosine transforms Histograms Indexes Decoding Cryptography Model based embedding JPEG Steganography YASS Virtual Host Block
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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