Affine-Invariant Image Watermarking Using the Hyperbolic Chirp.
Peter A. FletcherKieran G. LarkinStephen J. HardyPublished in: DICTA (2009)
Keyphrases
- affine invariant
- image watermarking
- fourier transform
- frequency domain
- affine transformation
- space variant
- scale invariant
- multiscale
- jpeg compression
- watermarking algorithm
- additive noise
- spatial domain
- geometric distortions
- copyright protection
- lossy compression
- signal processing
- discrete wavelet transform
- fourier descriptors
- digital watermarking
- geometric transformations
- face recognition
- image processing
- convex hull
- image matching
- digital images
- pattern recognition