Local Blackness Preserving Visual Cryptography for Grayscale Secret Images.
Bin YanNa ChenHong-Mei YangJianjun HaoPublished in: J. Inf. Hiding Multim. Signal Process. (2018)
Keyphrases
- gray scale
- secret image
- visual cryptography
- halftone images
- camera captured document
- secret sharing scheme
- image data
- grayscale images
- color images
- input image
- object recognition
- image analysis
- gray level
- binary images
- test images
- error diffusion
- secret sharing
- human eyes
- ground truth
- multiple images
- original images
- visual cryptography scheme
- reconstructed image
- region detection
- spatial domain
- high quality
- edge detection
- image compression
- multiresolution
- image regions