Novel techniques for watermark extraction in the DCT domain.
Juan Ramón HernándezMartin AmadoFernando Pérez-GonzálezPublished in: NSIP (1999)
Keyphrases
- dct domain
- watermark detection
- spatial domain
- transform domain
- post processing
- dct coefficients
- human visual system
- compressed domain
- digital video
- discrete cosine transform
- compressed images
- low pass filtering
- low frequency
- frequency domain
- motion estimation
- jpeg images
- reference frame
- watermarking scheme
- image blocks
- visual quality