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A Robust Image Steganography using CDF Lifting Scheme and Huffman Encoding

by Suganthi Venkatachalam, A. Shamim Banu, M. Padmaa
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 110 - Number 11
Year of Publication: 2015
Authors: Suganthi Venkatachalam, A. Shamim Banu, M. Padmaa
10.5120/19359-0921

Suganthi Venkatachalam, A. Shamim Banu, M. Padmaa . A Robust Image Steganography using CDF Lifting Scheme and Huffman Encoding. International Journal of Computer Applications. 110, 11 ( January 2015), 8-11. DOI=10.5120/19359-0921

@article{ 10.5120/19359-0921,
author = { Suganthi Venkatachalam, A. Shamim Banu, M. Padmaa },
title = { A Robust Image Steganography using CDF Lifting Scheme and Huffman Encoding },
journal = { International Journal of Computer Applications },
issue_date = { January 2015 },
volume = { 110 },
number = { 11 },
month = { January },
year = { 2015 },
issn = { 0975-8887 },
pages = { 8-11 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume110/number11/19359-0921/ },
doi = { 10.5120/19359-0921 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T22:46:04.217611+05:30
%A Suganthi Venkatachalam
%A A. Shamim Banu
%A M. Padmaa
%T A Robust Image Steganography using CDF Lifting Scheme and Huffman Encoding
%J International Journal of Computer Applications
%@ 0975-8887
%V 110
%N 11
%P 8-11
%D 2015
%I Foundation of Computer Science (FCS), NY, USA
Abstract

In the modern era, concerns about safeguarding the information from attacks are on rise. Here, 2-d lifting wavelet decomposition of a grayscale cover image through Cohen, Daubechies and Feauveau (2,2) lifting wavelet is performed and three secret images are shuffled and embedded in detail coefficients of the transform using approximation coefficients as indicator. Here, a novel Approximate Coefficients Value Indicator methodology is used to shuffle and embed the binary images in detail coefficients. Lossy and lossless steganographic techniques, followed by a lossless compression scheme using Huffman encoding are proposed. In lossy steganographic technique, secret images are embedded in LSB values of high frequency bands of the transform. In lossless technique, high frequency band values are expanded and images are embedded as previous method. Attacks such as Histogram attacks, statistical attacks are performed to check the robustness of the proposed algorithm. MSE and PSNR values are calculated to demonstrate the imperceptibility of the proposed method.

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Index Terms

Computer Science
Information Sciences

Keywords

DWT CDF Integer wavelet transform stego image cover image lossy lossless Histogram

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