A semi-fragile lossless digital watermarking based on adaptive threshold for image authentication.
Zhenyong ChenFangjie FuZhuo WangWei FanZhang XiongPublished in: Int. J. Multim. Intell. Secur. (2013)
Keyphrases
- digital watermarking
- image authentication
- semi fragile
- lossy compression
- tamper detection
- watermarking scheme
- lossless compression
- copyright protection
- digital images
- image compression
- image quality
- watermarking algorithm
- discrete wavelet transform
- watermarking technique
- pattern matching
- spread spectrum
- image watermarking
- jpeg compression
- watermarking method
- data hiding
- bit rate
- compression ratio
- low bit rate
- digital content
- watermark embedding
- gray level images
- signal processing
- digital libraries
- watermarked image
- public key