[IJET-V1I6P4] Authors: Bhatia Shradha, Doshi Jaina,Jadhav Preeti, Shah Nikita

International Journal of Engineering and Techniques – Volume 1 Issue 6, Nov – Dec 2015
ISSN: 2395-1303 http://www.ijetjournal.org Page 18
Review on Copyright protection in Data Hiding in an Image
Bhatia Shradha1
, Doshi Jaina2
,Jadhav Preeti3
, Shah Nikita4
(Department Of Computer Engineering, VPCOE, Baramati)
I. INTRODUCTION
Idea of the project is to hide data in an image
using Stegonography with the help of encryption.
Data is to be hidded in the image for security of the
data. After hiding the data in the image it is sent to
the receiver. Receiver has to decrypt the data from
the image by using the key which will be sent to the
receiver by a close network and the image will be
sent by a open network. Both the image and the key
should be received to decrypt the data from the
image.Cryptography is where security engineering
meets mathematics.The field of study
related to encoded information comes from Greek
word for "secret writing" is cryptography. The art
and science of hiding information by embedding it
in some other data is Steganography. The secret
communication is carried through many sources
like image, audio and video files. This technique
mainly proposes data hiding by embedding the
message of interest using geometric style of
cryptographic algorithm, thus providing high
security.
Wavelet and curvelet transform algorithms
are used to perform preprocessing of images.Even
if the image carrying embedded data i.e., Stego
image undergoes a reverseoperation and data
cannot be extracted if the receiver is unaware of the
exact coordinates of the geometric shape. Hence
retrieving secret image for an attacker becomes a
hardtask.Steganography and Cryptography
combinely
provides better security. In the area of information
,billions of bits of data is created in every fraction
of a second and multimedia services on the internet
leads to exponential growth of multimedia traffic
(image, text, audio, video, etc). With the ease of
editing and perfect reproduction in digital domain,
the protection of ownership and the prevention of
unauthorized tam-pering of multimedia data
become important concerns. Steganographic
techniques can be used to hide the information
within digital audio,images and video files which is
perceptually and statistically undetectable. The
method of embedding secret message (which can be
plain text, cipher text, or evenimages) is usually
based on replacing bits of useless or unused data in
the source cover(can be audio files, sound, text,
Disk space, hidden partition, network packets,
digitalimages, software, or circuitry).
Stego and crypto way shows new way of
embeddingthe data, especially in Multiresolution
analysis, there aredifferent ways of getting
Multiresolution. Wavelet transforms are used for
getting multiresolutions. Steganography is to create
secrete communication, inaddition to this crypto
way of embedding gives us higher end
of security. Even if the person gets both stego and
cove imagehe needs key to retrieve the data,
without the key one can’trecover the data. Thus
additional security is incorporated tothe normal
Steganography technique.
RESEARCH ARTICLE OPEN ACCESS
Abstract:
Cryptography is where security engineering meets mathematics.The field of studyrelated to encoded
information comes from Greek word for ”secret writing” is cryptography.The art and science of hiding information
by embedding it in some otherdata is Steganography. The secret communication is carried through many
sourceslike image, audio and video files. This technique mainly proposes data hiding by embeddingthe message of
interest using geometric style of cryptographic algorithm,thus providing high security. Wavelet transform
algorithms are used to perform preprocessing of images.
Keywords —Cryptography, Steganography, Geometrical way of embedding, Wavelet transforms,DCT

II. Data Hiding
Today an Internet provides communication between
billions of people all around the world. When
communication is ascending, security becomes key
factor todeal with it. Since Internet communication
is entirelydigital, the security can be provided in
two ways, one isCryptography and the other is
Steganography.Cryptography is considered to the
area of both Mathematicsand Computer Science.
Cryptography is a method of sending an enciphered
content so that nobody except thereceiver can
decipher it. Steganography on the other hand is
akin to Cryptography. Though Steganography is an
ancientmethod, modern computer technology has
given a new lifeto it. A combination of both
Cryptography and Steganography provides a very
high security
III. THE BASED TECHNIQUES
A. Wavelet Transform
Wavelet change has been recognized as a
powerful tool in awiderange of applications,
includingimage/video processing, number-based
analysis, and telecommunication. The advantage of
wavelet is that wavelet performs anMRAofasignal
with localization in both time and frequency .In
addition to this, functions with
discontinuities and functions with sharps pikes
require fewer wavelet basis vector sin the wavelet
domain than sine cosine basis vectorsto(accomplish
or gain with effort)a similar close guess. Wavelet
operates by convolving the target function with
wavelet kernels to get wavelet coefficients
representingthe(things that are given/work that's
done)inthefunctionatdifferentscalesandorientations.
Waveletor Multi resolution explanation (of why
something works or happens the way it does)canbe
used next to seg mentation approaches, creating
new systems which can provide asegmentation of
superior quality to those segmentation approaches
figured out/calculatedonlywithinthe(related to space
or existing in space)domain.
Separatewaveletchange (DWT) canbeput into
useasasetofhigh-passandlow-
passfilterbanks.Instandardwaveletrotting [13],
theoutputfrom thelow-
passfiltercanbethenrottenfurther, withthe
processcontinuingrecursively inthismanner.
For images, 1D-DWT canbeeasilyextendedinto
2D. Instandard 2D waveletrotting, theimagerows
are fullyrotten, withtheoutputbeingfullyrotten
column wise. Innonstandardwaveletrotting, allthe
rows arerottenbyonerottinglevelfollowedby
one rottinglevelofthecolumns
DWT Filter Structure.
B. Curvelet Transform
The curvelet transform[1] has gone through two
major revisions. It was first introduced in by
Candés and Donoho in 2000, which used a complex
series of stepsinvolving the ridgelet analysis of the
radon transform of animage. Their performance was
very slow; hence, researchersdeveloped a new
version which is easier to use andunderstand. In this
new method, the use of the ridgelet transform as a
preprocessing step of curvelet was discarded,thus
reducing the amount of redundancy in the transform
andincreasing the speed considerably. The newly
constructed and improved version of curvelet
transform is known as Fast Discrete Curvelet
Transform (FDCT). This new technique is simpler,
faster and less redundant than the original
curvelettransform which based on ridgelets. Two
implementations ofFDCT are proposed:Unequally
spaced Fast Fourier transforms (USFFT),Wrapping
function.Both implementations of FDCTdiffer
mainly bythe choice of spatial grid that used to
translate curvelets ateach scale and angle. Both

digital transformations return a table of digital
curvelet coefficients indexed by a scale parameter,
an orientation parameter, and a spatial
locationparameter. Wrapping-based transform is
based on wrapping aspecially selected Fourier
samples, and it is easier implement and understand.
IV. SYSTEMTECHNIQUE
With the use of Steganographic techniques, it is
possible to hide information within digital audio,
images andvideo files which is perceptually and
statistically undetectable.The method of embedding
secret message (which can be plaintext, cipher text,
or even images) is usually based on replacingbits of
useless or unused data in the source cover (can be
audiofiles, sound, text, Disk space, hidden partition,
networkpackets, digital images, software, or
circuitry). There are twocommon methods of
embedding: Spatial embedding in whichmessages
are inserted into the LSBs of image pixels,
andTransform embedding in which a message is
embedded bymodifying frequency coefficients of
the cover image (result iscalled the stego-
image).Transform embedding methods arefound to
be in general more robust than the Spatial
embeddingmethods which are susceptible to image-
processingtypeof attacks.
Fig.Architecture diagram
Applications:
1. Covert communication
2.Copyright protection of images
3. Image integrity protection
4.Electronic money
5.Protection of data alteration
6.Confidential communication and secret data
IV. CONCLUSIONS
The technique which is used is very efficient and
more feasible. Today an Internet provides
communication between billions of people all
around the world. When communication is
ascending, security becomes key factor to deal with
it. Since Internet communication is entirely digital,
the security can be provided in two ways, one is
Cryptography and the other is Steganography.
Cryptography is considered to the area of both
Mathematics and Computer Science. Cryptography
is a method of sending an enciphered content so
that nobody except the receiver can decipher it.
Steganography on the other hand is akin to
Cryptography. Though Steganography is an ancient
method, modern computer technology has given a
new life to it. A combination of both Cryptography
and Steganography provides a very high security.
Stego and crypto way shows new way of
embedding the data, especially in Multiresolution
analysis, there are different ways of getting
Multiresolution. Wavelet transforms are used for
getting multiresolutions. Steganography is to create
secrete communication, in addition to this crypto
way of embedding gives us higher end of security.
Even if the person gets both stego and cove image
he needs key to retrieve the data, without the key
one can’t recover the data. Thus additional security
is incorporated to the normal Steganography
technique.
ACKNOWLEDGMENT
This work was supported by department of
computer engineering VPCOE, Baramati,India.We
are wish to express grateful thanks to the referees
for theiruseful Research.
REFERENCES
1. Geetha C.R.,Dr. Puttamadappa C, "Enhanced
Stego-Crypto Techniques of Data Hiding Through
Geometrical Figures In an Image," IEEE
SPONSORED 2ND
INTERNATIONAL

CONFERENCE ON ELECTRONICS AND
COMMUNICA-
TIONS SYSTEM(ICECS 2015)
2.Debnath Bhattacharyya and AsmitaHaveliya, "A
Robust Method for Data Hiding via Combination of
Colour Images and PDF Files," 2012 International
Conference on Communication Systems and
Network Technologies
3. Sujay Narayana and Gaurav Prasad, "TWO NEW
APPROACHES FOR SECUREDIMAGE
STEGANOGRAPHY USING CRYPTOGRAPHIC
TECHNIQUES ANDTYPE CONVERSIONS,"
Signal and Image Processing An International
Journal(SIPIJ) Vol.1, No.2, December 2010
4. Y Hui Chen and CiWeiLan, "A Verifiable Visual
Cryptography Scheme," 2011 FifthInternational
Conference on Genetic and Evolutionary
Computing.
5. Geetha C.R, Dr.H.D.Giriprakash1, Shailesh,
SapnakumariC."Hiding Data in Images through
Geometrical Figures,"International Journal of
Graphics and Image Processing issue2 May 2012.

[IJET-V1I6P4] Authors: Bhatia Shradha, Doshi Jaina,Jadhav Preeti, Shah Nikita

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[IJET-V1I6P4] Authors: Bhatia Shradha, Doshi Jaina,Jadhav Preeti, Shah Nikita