Embedding and detecting spread-spectrum watermarks under estimation attacks.
Darko KirovskiHenrique S. MalvarPublished in: ICASSP (2002)
Keyphrases
- spread spectrum
- watermarking algorithm
- watermark embedding
- image watermarking
- watermark detection
- watermarking scheme
- watermarking technique
- watermarked image
- data hiding
- digital watermarking
- video watermarking
- jpeg compression
- signal processing
- copyright protection
- watermarking method
- transform domain
- wavelet domain
- digital images
- dct coefficients
- spatial domain
- watermark extraction
- communication systems
- feature extraction
- geometric distortions
- test images
- digital libraries