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An Improved Reversible Watermarking Based on Pixel Value Ordering and Prediction Error Expansion.
Le Quang Hoa
Cao Thi Luyen
Nguyen Kim Sao
Pham Van At
Published in:
ACIIDS (2) (2020)
Keyphrases
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reversible watermarking
prediction error
pixel values
image quality
bit rate
gray level
motion vectors
inter frame
watermarking scheme
visual quality
probability density function
median filter
high quality
image data
motion estimation
video coding