Visual cryptography via halftoning.
Gonzalo R. ArceZhi ZhouGiovanni Di CrescenzoPublished in: Color Imaging: Processing, Hardcopy, and Applications (2004)
Keyphrases
- visual cryptography
- error diffusion
- halftone images
- gray scale
- secret sharing scheme
- black and white
- image quality
- visual cryptography scheme
- human visual system
- data hiding
- gray level
- secret sharing
- color images
- frequency domain
- digital images
- original images
- secret image sharing
- binary images
- image segmentation
- post processing
- high resolution
- multiscale
- high quality