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A Spatial Domain Image Steganography Technique Based on Matrix Embedding and Huffman Encoding
P.Nithyanandam, T.Ravichandran, N.M.Santron, E. Priyadharshini
Pages - 456 - 468     |    Revised - 01-11-2011     |    Published - 15-12-2011
Volume - 5   Issue - 5    |    Publication Date - November / December 2011  Table of Contents
MORE INFORMATION
KEYWORDS
Steganography, Imperceptibility, Payload, Stego Image
ABSTRACT
This paper presents an algorithm in spatial domain which gives less distortion to the cover image during embedding process. Minimizing embedding impact and maximizing embedding capacity are the key factors of any steganography algorithm. Peak Signal to Noise Ratio (PSNR) is the familiar metric used in discriminating the distorted image (stego image) and cover image. Here matrix embedding technique is chosen to embed the secret image which is initially Huffman encoded. The Huffman encoded image is overlaid on the selected bits of all the channels of pixels of cover image through matrix embedding. As a result, the stego image is constructed with very less distortion when compared to the cover image ends up with higher PSNR value. A secret image which cannot be embedded in a normal LSB embedding technique can be overlaid in this proposed technique since the secret image is Huffman encoded. Experimental results for standard cover images, which obtained higher PSNR value during the operation is shown in this paper.
CITED BY (12)  
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[Online].Available : http://www.binaryessence.com
Mr. P.Nithyanandam
SSN college of engineering - India
nithyanandamp@ssn.edu.in
Mr. T.Ravichandran
- India
Mr. N.M.Santron
- India
Mr. E. Priyadharshini
- India


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