Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7132365 | Optics and Lasers in Engineering | 2016 | 11 Pages |
Abstract
Image encryption is an efficient technique of image content protection. In this work, we propose a useful image encryption algorithm for multiple grayscale images. The proposed algorithm decomposes input images into bit-planes, randomly swaps bit-blocks among different bit-planes, and conducts XOR operation between the scrambled images and secret matrix controlled by chaotic map. Finally, an encrypted PNG image is obtained by viewing four scrambled grayscale images as its red, green, blue and alpha components. Many simulations are done to illustrate efficiency of our algorithm.
Related Topics
Physical Sciences and Engineering
Engineering
Electrical and Electronic Engineering
Authors
Zhenjun Tang, Juan Song, Xianquan Zhang, Ronghai Sun,