Keyphrases
- watermarking scheme
- error correction
- digital images
- watermarking algorithm
- image watermarking
- jpeg compression
- digital watermarking
- robust image watermarking
- copyright protection
- feature vectors
- video watermarking
- spread spectrum
- watermark embedding
- digital watermark
- human visual system
- watermarking technique
- error correcting codes
- watermarking method
- multimedia
- geometric attacks
- secret information
- image authentication
- feature extraction
- watermark detection
- image processing operations
- fixed length
- geometric distortions
- dct domain