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High capacity reversible data hiding in encrypted images based on prediction error and block classification.
Xu Wang
Chin-Chen Chang
Chia-Chen Lin
Published in:
Multim. Tools Appl. (2021)
Keyphrases
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high capacity
reversible data hiding
prediction error
image classification
data hiding
pixel values
input image
halftone images
barcode
image data
data storage
secret data
error correction
feature extraction
image quality
gray level
test images
denoising
image blocks
lossy compression
jpeg images