Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Adaptive Embedding Pattern for Grayscale-Invariance Reversible Data
  Hiding   In traditional reversible data hiding (RDH) methods, researchers pay
attention to enlarge the embedding capacity (EC) and to reduce the embedding
distortion (ED). Recently, a completely novel RDH algorithm was developed to
embed secret data into color image without changing the corresponding grayscale
[1], which largely expands the applications of RDH. In [1], for color image,
channel R and channel B are exploited to carry secret information, channel G is
adjusted for balancing the modifications of channel R and channel B to keep the
invariance of grayscale. However, we found that the embedding performance (EP)
of that method is still unsatisfied and could be further enhanced. To improve
the EP, an adaptive embedding pattern is introduced to enhance the competence
of algorithm for selectively embedding different bits of secret data into
pixels according to context information. Moreover, a novel two-level predictor
is designed by uniting two normal predictors for reducing the ED for embedding
more bits. Experimental results demonstrate that, compared to the previous
method, our scheme could significantly enhance the image fidelity while keeping
the grayscale invariant.

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The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: econ
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int