Random grid based color visual cryptography scheme for black and white secret images with general access structures.
Xiaotian WuZhao-Rong LaiPublished in: Signal Process. Image Commun. (2019)
Keyphrases
- black and white
- digital imaging
- visual cryptography scheme
- secret image
- secret sharing scheme
- secret sharing
- barcode
- visual cryptography
- gray images
- digital images
- image editing
- halftone images
- human eyes
- gray level
- image data
- image regions
- digital photography
- spatial domain
- synthetic and real images
- reconstructed image
- image acquisition
- color images
- image processing
- color information
- hough transform
- input image
- test images
- co occurrence
- wavelet transform
- image segmentation