Keyphrases
- principal component analysis
- principal components analysis
- dimensionality reduction
- principle component analysis
- face recognition
- principal components
- gray level
- independent component analysis
- covariance matrix
- feature extraction
- high dimensional
- feature space
- dimension reduction
- mean shift
- dimension reduction methods
- reversible data hiding
- pixel wise
- negative matrix factorization
- multiscale
- shape context
- subspace methods
- histogram equalization
- machine learning
- binary patterns
- image enhancement
- svm classifier