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- Title
Quantum Image Encryption Based on Block Geometric and Haar Wavelet Transform.
- Authors
Fan, Ping; Hou, MengJuan; Hu, WenWen; Xiao, Ke
- Abstract
Combine the block-based geometric transformation and Haar wavelet transform, this paper proposes a quantum image encryption for the flexible representation of quantum images. To encrypt the quantum image, the present algorithm mainly contains two stages: first, the quantum block-based geometric transformation performed to disturb the pixels coordinate information iteratively in spatial domain; second, based on 1st quantum Haar wavelet transform, the quantum block-based geometric transformation performed to disturb the approximation information of quantum image in frequency domain. Thereafter, the inverse 1st quantum Haar wavelet transform performed to obtain the final encrypted quantum image. The circuit complexity that realizes the present quantum image encryption and decryption process is only O n 2 for a 2 n × 2 n quantum image, which demonstrates greatly speed-up than classical image encryption algorithms. The experimental results simulated on a classical computer with MATLAB environments indicate that the present algorithm has a good performance for image encryption.
- Publication
International Journal of Theoretical Physics, 2022, Vol 61, Issue 11, p1
- ISSN
0020-7748
- Publication type
Article
- DOI
10.1007/s10773-022-05244-1