Frequency-based Watermarking with Spatial Masking for DRM of MMS Content.
Amâncio SantosLuís Moura SilvaPedro MartinsPaulo CarvalhoPublished in: SIP (2003)
Keyphrases
- digital content
- copyright protection
- multimedia content
- digital rights management
- digital images
- digital watermarking
- spatio temporal
- metadata
- spatial relationships
- spatial information
- spatial data
- multimedia
- multimedia data
- human visual system
- spatial databases
- space time
- low frequency
- mobile phone
- watermarking technique
- image authentication
- spectral characteristics
- spatial frequency
- spatial relations
- visual quality
- image processing