Using Colors to Improve Visual Cryptography for Black and White Images.
Roberto De PriscoAlfredo De SantisPublished in: ICITS (2011)
Keyphrases
- black and white
- digital imaging
- visual cryptography
- halftone images
- image data
- input image
- secret image
- gray images
- secret sharing scheme
- visual cryptography scheme
- image editing
- gray level
- barcode
- original images
- edge detection
- gray scale
- test images
- digital images
- color images
- human eyes
- computer vision
- data hiding
- image structure
- secret sharing
- signal processing