Keyphrases
- information hiding
- fractional order
- jpeg images
- differential equations
- hidden information
- data hiding
- feedback control
- differential evolution
- pid controller
- dynamical systems
- transfer function
- secret message
- spatial domain
- diffusion equation
- copyright protection
- digital images
- fuzzy logic
- control system
- watermarking scheme
- image enhancement
- frequency domain
- data embedding
- multiscale
- neural network