Data-Hiding for Halftone Images Using an Improved CPT scheme.
Phan Trung HuyNguyen Hai ThanhCheonshik KimChing-Nung YangPublished in: KSII Trans. Internet Inf. Syst. (2013)
Keyphrases
- data hiding
- halftone images
- data hiding scheme
- high capacity
- secret data
- data embedding
- reversible data hiding
- error correction
- watermarking technique
- spread spectrum
- spatial domain
- information hiding
- visual cryptography
- error diffusion
- gray scale
- black and white
- block truncation coding
- image processing
- motion estimation