A blind watermarking algorithm based on fractional Fourier transform and visual cryptography.
Sanjay RawatBalasubramanian RamanPublished in: Signal Process. (2012)
Keyphrases
- watermarking algorithm
- visual cryptography
- fractional fourier transform
- secret sharing scheme
- log polar
- jpeg compression
- signal processing
- image watermarking
- wavelet domain
- watermarking scheme
- copyright protection
- spatial domain
- spread spectrum
- secret image
- digital watermarking
- dct coefficients
- image authentication
- watermarking technique
- high quality
- image processing
- additive noise
- pattern recognition