Separable reversible data hiding in encrypted halftone image.
Cheonshik KimDongkyoo ShinLu LengChing-Nung YangPublished in: Displays (2018)
Keyphrases
- reversible data hiding
- halftone images
- data hiding
- high capacity
- error correction
- gray scale
- spatial domain
- information hiding
- secret data
- visual quality
- error diffusion
- original images
- data embedding
- jpeg images
- cover image
- structural similarity
- black and white
- feature extraction
- high frequency
- frequency domain
- image quality
- video sequences