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High capacity data hiding based on multi-directional pixel value differencing and decreased difference expansion.
Pratap Chandra Mandal
Imon Mukherjee
Published in:
Multim. Tools Appl. (2022)
Keyphrases
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high capacity
data hiding
secret data
cover image
pixel values
reversible data hiding
error correction
image quality
spatial domain
data embedding
gray level
information hiding
watermarking technique
jpeg images
error diffusion
color images
multiresolution
image segmentation