Halftone visual cryptography via direct binary search.
Zhongmin WangGonzalo R. ArceGiovanni Di CrescenzoPublished in: EUSIPCO (2006)
Keyphrases
- visual cryptography
- halftone images
- direct binary search
- error diffusion
- gray scale
- inverse halftoning
- data hiding
- halftoning algorithm
- black and white
- original images
- image quality
- secret sharing scheme
- perceptual quality
- gray images
- gray level
- frequency domain
- color images
- computer vision
- preprocessing
- image processing
- human visual system
- binary images
- co occurrence