2D-FRFT Based Frequency Shift-Invariant Digital Image Encryption

Lei Gao; Lin Qi; Ling Guan

ICASSP 2021accepted0 citations

2D-FRFT Based Frequency Shift-Invariant Digital Image Encryption

Abstract

In this paper, we study the property of frequency shift in two-dimensional Fractional Fourier Transform (2D-FRFT) domain. Based on the mathematical verification and computer simulations, it is demonstrated that the magnitude of reconstruction from phase information satisfies frequency shift-invariant in 2D-FRFT domain, improving the robustness of image encryption. Experiments are implemented to verify the effectiveness of this property against the frequency shift attack in 2D-FRFT domain, improving the robustness of image encryption.

BibTeX

@inproceedings{icassp2021_2dfrftbasedfrequ,
  title = {2D-FRFT Based Frequency Shift-Invariant Digital Image Encryption},
  author = {Lei Gao and Lin Qi and Ling Guan},
  booktitle = {ICASSP 2021},
  year = {2021}
}