Keyphrases
- image authentication
- curvelet transform
- wavelet transform
- hierarchical representation
- public key
- feature set
- watermarking scheme
- fusion method
- image content
- jpeg compression
- digital watermarking
- palmprint
- authentication scheme
- multiresolution
- contrast enhancement
- watermarking algorithm
- smart card
- copyright protection
- subband
- wavelet domain
- high quality
- data fusion
- wavelet coefficients