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Random grid based color visual cryptography scheme for black and white secret images with general access structures.
Xiaotian Wu
Zhao-Rong Lai
Published in:
Signal Process. Image Commun. (2019)
Keyphrases
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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