Paper Info
Title
A modified DWT-based image steganography technique.
Abstract
The main challenges of image steganography are imperceptibility of the cover image and no recoverability of the secret data. To deal with these challenges, a modified digital image steganography technique based on Discrete Wavelet Transform (DWT) is proposed. In proposed approach, two new concepts are being proposed to minimize the distortion in the cover image. The first one i.e. secret key computation concept is proposed to make it more robust and resistive towards steganalysis. The second one, known as blocking concept, is introduced to ensure least variation in the cover image. The proposed approach is tested over ten different cover images and two secret images. Its performance is compared with the six well-known steganography techniques. The experimental results reveal that the proposed approach performs better than the existing techniques in terms of imperceptibility, security and quality measures. The six image processing attacks are also applied on the stego-image to test the robustness of the proposed approach. The effects of compression, rotation, and application of different wavelets have also been investigated on the proposed approach. The results demonstrate the robustness of the proposed approach under different image processing attacks. Both stego-image and extracted secret images possess better visual quality.
Year
DOI
Venue
2018
https://doi.org/10.1007/s11042-017-4947-8
Multimedia Tools Appl.
Keywords
Field
DocType
Steganography,Discrete Wavelet Transform,Transform Domain
Computer vision,Steganography,Steganography tools,Pattern recognition,Computer science,Image processing,Robustness (computer science),Digital image,Discrete wavelet transform,Artificial intelligence,Steganalysis,Wavelet
Journal
Volume
Issue
ISSN
77
11
1380-7501
Citations 
PageRank 
References 
2
0.36
18
Authors
2
Name
Order
Citations
PageRank
Vijay Kumar122921.59
Dinesh Kumar224745.04