Multiple-image encryption with bit-plane decomposition and chaotic maps |
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| Affiliation: | 1. School of Computer Science and Technology, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen, 518055, China;2. Department of Computer and Information Science, University of Macau, Macau, 999078, China;1. College of Information and Communication, Harbin Engineering University, Harbin, Heilongjiang, 150001, China;2. College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin, Heilongjiang, 150001, China;3. Information Center, Kim Chaek University of Technology, Pyongyang 950003, Democratic People’s Republic of Korea;1. Department of Computer Engineering, Firoozkooh Branch, Islamic Azad University, Firoozkooh, Iran;2. Department of Electrical Engineering, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, Brazil;3. Laboratory Images, Signals, and Intelligent Systems (LiSSi), University Paris-Est Créteil, Vitry sur Seine 94400, France |
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| 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. |
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| Keywords: | Multiple-image encryption Bit-plane decomposition Encrypted image PNG image Chaotic map |
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