An efficient image steganography approach based on QR factorization and singular value decomposition in non-subsampled contourlet transform domain.
Fauzia YasmeenMohammad Shorif UddinPublished in: Secur. Priv. (2022)
Keyphrases
- singular value decomposition
- low rank
- singular values
- least squares
- factorization method
- non subsampled contourlet transform
- dimension reduction
- dimensionality reduction
- measurement matrix
- principal component analysis
- data matrix
- qr decomposition
- high dimensional data
- null space
- low rank matrix
- data fusion
- image registration
- low rank approximation
- singular vectors