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Reversible data hiding in encrypted images based on homomorphism and block-based congruence transformation.
Sisheng Chen
Chin-Chen Chang
Chia-Chen Lin
Published in:
Multim. Tools Appl. (2021)
Keyphrases
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image data
input image
original images
pixel values
test images
reversible data hiding
image segmentation
gray scale
feature extraction
digital images
binary images