A REVIEW PAPER ON ENCRYPTION OF PICTURE IN WAVELET DOMAIN

  • Arun N

Abstract

A novel symmetric multiple image encryption algorithm is suggested in this paper. The device takes advantage of the characteristics of discrete wavelet transformation, finite ridgelet transformation, and chaotic maps to achieve a single encrypted image that secretly contains the original image information that is totally distorted and meaningless. The four original images are first transformed into the wavelet domain, followed by their HH bands' finite ridgelet transformations, to get two transformed matrices combined. This results in a final encrypted image on the rotation of pixel values using chaotic key image, mixing and then their shuffling using random sequences. To produce the chaotic main image and shuffling sequences, respectively, the piece-wise linear chaotic map and 2D gingerbreadman chaotic map are used. For a casual observer, the encrypted image is extremely skewed and without significance. The mean square error is less than 0.004 between the pairs of decrypted and original images. In addition, the experimental results and simulation analysis indicate that the low correlation factor, high key sensitivity and large key space have the advantage of the scheme..

 

Published
2019-12-25