Keyphrases
- watermarking scheme
- geometric distortions
- robust watermarking scheme
- geometric attacks
- watermarking technique
- principal component analysis
- watermarking method
- image watermarking scheme
- jpeg compression
- image watermarking
- digital watermarking
- copyright protection
- spread spectrum
- semi fragile
- watermark detection
- digital watermark
- digital image watermarking
- video watermarking
- image authentication
- watermarking algorithm
- watermark extraction
- transform domain
- error correction
- digital images
- image processing