Frequency domain chaotic watermarking.
Alessandra GiovanardiGianluca MazziniPublished in: ISCAS (2) (2001)
Keyphrases
- frequency domain
- spatial domain
- fourier transform
- data hiding
- digital images
- copyright protection
- power spectrum
- cross correlation
- subband
- denoising
- low frequency
- watermarking scheme
- feature extraction
- digital watermarking
- frequency domain analysis
- image watermarking
- spread spectrum
- phase correlation
- spectrum analysis
- watermarking technique
- watermarking algorithm
- audio signal
- image authentication
- frequency analysis
- affine invariance
- fast fourier transform
- image processing operations
- power spectral
- directional filtering
- frequency response
- fourier analysis
- motion estimation