A halftone visual cryptography schema using ordered dither.
Liuping FengDongsheng CongHuaqun LiuMeng-Min WangPublished in: ICDIP (2014)
Keyphrases
- visual cryptography
- error diffusion
- halftone images
- inverse halftoning
- gray scale
- secret sharing scheme
- visual cryptography scheme
- data hiding
- image quality
- data model
- black and white
- human visual system
- gray level
- transform domain
- spatial domain
- color images
- secret image
- original images
- spatial resolution
- frequency domain
- binary images
- co occurrence
- blue noise