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Reversible data hiding in encrypted images based on multi-level encryption and block histogram modification.
Zhao-Xia Yin
Andrew Abel
Jin Tang
Xinpeng Zhang
Bin Luo
Published in:
Multim. Tools Appl. (2017)
Keyphrases
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image data
input image
test images
original images
secret key
jpeg images
secret data
reversible data hiding
pixel values
dct coefficients
image blocks
chaotic sequence