Data Hiding in a Kind of PDF Texts for Secret Communication.
Shangping ZhongXueqi ChengTierui ChenPublished in: Int. J. Netw. Secur. (2007)
Keyphrases
- data hiding
- secret data
- secret message
- secret information
- error correction
- spread spectrum
- data hiding scheme
- information hiding
- spatial domain
- high capacity
- data embedding
- reversible data hiding scheme
- reversible data hiding
- cover image
- watermarking technique
- probability density function
- jpeg images
- embedded image
- communication systems
- halftone images