Secure telemedicine using RONI halftoned visual cryptography without pixel expansion.
Arvind BakshiAnoop Kumar PatelPublished in: J. Inf. Secur. Appl. (2019)
Keyphrases
- visual cryptography
- error diffusion
- gray scale
- inverse halftoning
- halftone images
- gray scale images
- secret sharing scheme
- image quality
- secret sharing
- binary images
- key management
- gray level
- pixel values
- input image
- color images
- gray images
- human visual system
- encryption scheme
- gray value
- frequency domain
- multiscale
- feature extraction
- multi party
- face recognition