Secure robust digital watermarking using the lapped orthogonal transform.
Shelby PereiraJoseph Ó RuanaidhThierry PunPublished in: Security and Watermarking of Multimedia Contents (1999)
Keyphrases
- digital watermarking
- image watermarking
- lapped transforms
- digital signature
- watermarking technique
- copyright protection
- watermarking method
- digital images
- image coding
- discrete wavelet transform
- geometric distortions
- image authentication
- watermarking scheme
- image scrambling
- watermark detection
- watermarking algorithm
- jpeg compression
- digital watermark
- smart card
- signal processing