Color image watermarking using quaternion Fourier transform.
Patrick BasNicolas Le BihanJean-Marc ChasseryPublished in: ICASSP (3) (2003)
Keyphrases
- fourier transform
- image watermarking
- frequency domain
- color images
- signal processing
- watermarking algorithm
- jpeg compression
- additive noise
- spatial domain
- discrete wavelet transform
- geometric distortions
- copyright protection
- lossy compression
- fourier descriptors
- image regions
- neural network
- polar coordinates
- gray level images
- digital watermarking