Color image encryption based on discrete trinion Fourier transform and random-multiresolution singular value decomposition.
Qijun YaoZhuhong ShaoYuanyuan ShangHui DingXilin LiuRui ZengQingbin TongPublished in: Multim. Tools Appl. (2020)
Keyphrases
- singular value decomposition
- fourier transform
- multiresolution
- color images
- discrete fourier transform
- frequency domain
- hartley transform
- least squares
- singular values
- low rank
- signal processing
- dimensionality reduction
- subband
- radon transform
- latent semantic indexing
- fast fourier transform
- wavelet transform
- principal component analysis
- wavelet coefficients
- fourier descriptors
- image processing
- spatial domain
- filter bank
- data matrix
- wavelet domain
- high frequency
- log polar
- feature extraction
- face recognition
- polar coordinates
- machine learning