Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Steganography Using Adaptive Pixel Value Differencing(APVD) of Gray
  Images Through Exclusion of Overflow/Underflow   In a gray scale image the pixel value ranges from 0 to 255. But when we use
pixel-value differencing (pvd) method as image steganographic scheme, the pixel
values in the stego-image may exceed gray scale range. An adaptive
steganography based on modified pixel-value differencing through management of
pixel values within the range of gray scale has been proposed in this paper.
PVD method is used and check whether the pixel value exceeds the range on
embedding. Positions where the pixel exceeds boundary has been marked and a
delicate handle is used to keep the value within the range. From the
experimental it is seen that the results obtained in proposed method provides
with identical payload and visual fidelity of stego-image compared to the pvd
method.

33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph