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Privacy-preserving reversible data hiding based on quad-tree block encoding and integer wavelet transform.
Xu Wang
Ching-Chun Chang
Chia-Chen Lin
Chin-Chen Chang
Published in:
J. Vis. Commun. Image Represent. (2021)
Keyphrases
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stego image
quadtree
reversible data hiding
block size
data hiding
lossless compression
multiresolution
data structure
high capacity
image representation
tree structure
pixel values
inter frame
prediction algorithm
cover image
coding method
visual quality
wavelet packet
spatial domain
secret data
wavelet transform