Image encryption via discrete fractional Fourier-type transforms generated by random matrices
作者:
Highlights:
• New discrete fractional Fourier-type transforms are presented.
• Transforms are introduced in terms of the spectral decomposition theorem.
• Eigenvalues and the eigenvectors are selected randomly by two different ways.
• Image encryption procedures are introduced, implementing the new transforms.
• An extensive statistical analysis is carried out.
摘要
Highlights•New discrete fractional Fourier-type transforms are presented.•Transforms are introduced in terms of the spectral decomposition theorem.•Eigenvalues and the eigenvectors are selected randomly by two different ways.•Image encryption procedures are introduced, implementing the new transforms.•An extensive statistical analysis is carried out.
论文关键词:Discrete fractional Fourier transform,Spectral decomposition,Image encryption,Random matrices,Entropy and permutation tests
论文评审过程:Received 14 June 2016, Revised 11 August 2016, Accepted 24 September 2016, Available online 28 September 2016, Version of Record 26 October 2016.
论文官网地址:https://doi.org/10.1016/j.image.2016.09.006