Image watermarking scheme using nonnegative matrix factorization and wavelet transform.
Mohamed OuhsainA. Ben HamzaPublished in: Expert Syst. Appl. (2009)
Keyphrases
- nonnegative matrix factorization
- wavelet transform
- image watermarking scheme
- wavelet domain
- wavelet coefficients
- multiresolution
- data representation
- subband
- matrix factorization
- discrete wavelet transform
- watermarking scheme
- multiscale
- image compression
- least squares
- high frequency
- negative matrix factorization
- spectral clustering
- feature extraction
- document clustering
- support vector regression
- principal component analysis
- watermarking algorithm
- jpeg compression
- original data
- watermark embedding
- low frequency
- image denoising
- machine learning
- image retrieval
- image watermarking
- collaborative filtering
- image normalization
- object recognition
- spatial domain