Keyphrases
- jpeg images
- principal component analysis
- linear discriminant analysis
- linear discriminate analysis
- face recognition
- dimensionality reduction
- feature extraction
- discrete cosine transform
- principle component analysis
- compressed images
- feature space
- compression algorithm
- data hiding
- dct coefficients
- jpeg compression
- face images
- image reconstruction
- image compression
- wireless channels
- multiscale
- computer vision
- high quality
- feature selection
- watermarking algorithm