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High-capacity separable reversible data-Hiding method in encrypted images based on block-level encryption and Huffman compression coding.
Kaimeng Chen
Chin-Chen Chang
Published in:
Connect. Sci. (2021)
Keyphrases
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high capacity
reversible data hiding
synthetic and real images
pixel values
test images
data hiding
image data
feature extraction
input image
data compression
lossy compression
information hiding