A new technique of frequency domain watermarking based on a local ring.
Sajjad Shaukat JamalTariq ShahShabieh FarwaMuhammad Usman KhanPublished in: Wirel. Networks (2019)
Keyphrases
- frequency domain
- fourier transform
- spatial domain
- digital images
- watermarking scheme
- spread spectrum
- power spectrum
- data hiding
- low frequency
- cross correlation
- low pass
- image watermarking
- frequency analysis
- feature extraction
- copyright protection
- denoising
- frequency domain analysis
- watermarking algorithm
- fourier analysis
- audio signal
- subband
- spectrum analysis
- power spectra
- discrete fourier transform
- power spectral
- image authentication
- phase correlation
- information hiding
- fourier domain
- watermarking technique
- image processing operations
- digital watermarking
- signal processing
- multiresolution