Paper Info
Title
A Cryptosystem For Lossless/Lossy Grayscale Images In Iwt Domain Using Chaotic Map-Based Generated Key Matrices
Abstract
In this paper, an image encryption scheme based on reversible integer wavelet transform (IWT) with chaotic logistic map is designed. The proposed cryptosystem is applicable to encipher both the medical and natural images in lossless and lossy manners, respectively. Initially, the original image is transformed with the multilevel of IWT, then the image data set is divided into low sub-band (approximation part) and high sub-bands (detail part). The approximation part gets confused with the chaotic logistic map followed by the bit plane decomposition. Next, the individual bit planes are further diffused with several binary key metrics, generated using a chaotic logistic map. The proposed key schedule derives several large size of binary key metrics from a small size of key. Based on the type of applications, the detail part is considered for lossless/lossy compression. The lossless/lossy compressed detail part is further considered only for confusion process using the logistic map for the sake of enhancing the security level. Finally, the cipher image obtained after inverse IWT is significantly dissimilar than original image. The scheme has been tested on several standard medical and natural images and the experimental results substantiate that a small size of key is enough to protect the content of images completely. The security analysis reveals that the proposed scheme is suitable for protecting the image data effectively.
Year
DOI
Venue
2018
10.1142/S0219691318500248
INTERNATIONAL JOURNAL OF WAVELETS MULTIRESOLUTION AND INFORMATION PROCESSING
Keywords
Field
DocType
Arnold Cat Map (ACM), chaotic logistic map, cryptosystem, integer wavelet transform (IWT), lossless image compression
Mathematical optimization,Key schedule,Bit plane,Lossy compression,Algorithm,Logistic map,Cryptosystem,Chaotic,Grayscale,Mathematics,Lossless compression
Journal
Volume
Issue
ISSN
16
4
0219-6913
Citations 
PageRank 
References 
0
0.34
7
Authors
2
Name
Order
Citations
PageRank
Kshiramani Naik132.12
Arup Kumar Pal26414.41