Keyphrases
- face recognition
- color images
- color information
- face representation
- face images
- discriminant analysis
- color constancy
- color space
- negative matrix factorization
- face detection
- skin detection
- facial images
- feature extraction
- computer vision
- pose variations
- local binary pattern
- linear discriminant analysis
- image regions
- sparse representation
- facial expressions
- color histogram
- color correction
- face recognition systems
- color components
- digital images