Title
Covariance Based Steganography Using DCT.
Abstract
The confidential information is communicated through the open channel in a covert way by using steganography. In this paper we propose the Covariance based Steganography using Discrete Cosine Transform (CSDCT) algorithm. The Average Covariance of the Cover Image (ACCI) is computed and threshold ACCI value is fixed at 0.15. The cover image is segmented into 8*8 cells and the Least Significant Bit (LSBs) are replaced by Most Significant Bits (MSBs) of payload based on ACCI values. It is observed that the capacity, Peak Signal to Noise Ratio (PSNR) and security is better compared to the existing algorithm.
Year
DOI
Venue
2011
10.1007/978-3-642-22714-1_66
ADVANCES IN COMPUTING AND COMMUNICATIONS, PT 2
Keywords
Field
DocType
Covariance,Cover Image,DCT,Payload,Steganography
Peak signal-to-noise ratio,Steganography,Computer science,Control theory,Discrete cosine transform,Algorithm,Covariance,Least significant bit,Payload
Conference
Volume
ISSN
Citations 
191
1865-0929
0
PageRank 
References 
Authors
0.34
11
5
Name
Order
Citations
PageRank
N. Sathisha100.34
K. Suresh Babu201.69
K. B. Raja3349.60
K. R. Venugopal426748.80
Lalit M. Patnaik524348.76