VOLUME 8 NOMOR 1 APRIL 2009
ISSN 1412-8292
J
urnal Ilmiah Elektroteknika
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ｾ＠10060148
Vol. 8 No. 1 April2009
Perancangan Demodulator
BPSK
... Budihardja Murtianta
1 - 9
lmplementasi
Real Time Streaming Protocol
untuk Aplikasi
Radio
Internet
...
... Hartanto K. W.,GideonS.S,Handoko
11 - 29
Improving Watermark Robustness Against Geometric Transformation
Attack
... /wan Setyawan
31- 57
•
TECHNe
Jurusan Teknik Elektro
Fakultas Teknik
Universitas Kristen Sat a Wacana
Him. 1-57
ISSN
1412-8292
•
VOLUME 8 NOMOR I APRIL 2009
ISSN 1412-8292
TECHNe
J nrnal Ihniah Elektroteknika
Pelindung
Dckan Fakultas Tcknik
Penyunting Pclaksana Dr.
Iwan Setyawan
Penyunting Dalam
Penyunting Luar
Tata Usaha
Alamat Rcdaksi
Pener-bit
Andreas Ardian Febrianto, M.T.
Prof. Dr. Lick Wilardjo
Hartanto Kusuma Wardana, M.T. Dr. Matias H.W.Budhiantho Lukas B. Sctyawan, M.Sc. Budihardja Murtianta, M.Eng F. Dalu Setiaji, M.T.
Handoko, M .Eng
Darmawan Utomo, M,Eng Soedigno, M,Sc
Prof. Elmer L. Hixson, Ph.D- Dept. of Electrical and
Computer Engin.:cring, Th.: University of Texas ｾｬｴ＠ Austin, USA
Prof. DR. Mahesan Niranjan -- D...:pt. of Computer Science, University of Sheffield, UK
DR. Clarence E. Prince- USA
DR.Eng. Lomi Abraham- lnstitut Tcknologi Nasional - Malang
Anggun Arista Yudhiani, A.Md
Fakultas Tcknik
Universitas Kristen Satya Wacana Jl.Diponcgoro 52-60, Salatiga 50711
Tclp. (0298) 311884. (0298) 321212 ext. 246 Fax. (0298)311884
Email : jurnal.tecbnc@g!11ail.com
Web: http://sites.google.com/sitc/jurnaltcchne/
Fakultas Teknik
Universitas Kristen Satya Wacana Salatiga
Tcrbit pet1ama kali : Oktober 2002.
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---VOLUME 8 NOMOR 1 APRIL 2009
ISSN 1412-8292
TECHNe
Jurnalllmiah Elektroteknika
DAFTARISI
Perancangan Demodulator
BPSK•••..•••...•...•...••...•••...••.. BIItlillariljtl M11rtia11ta 1 - 9
lmplementasi
Rettl Time Streami11g Prot11coluntuk Aplikasi
RatlitJ I11temet••••••••••••••••••••••••••••••••••••••••••••• .HttrtttllltJ K. W.,GitletJII.fJ.S,Hantloko ll - 29
Jmpr11ving Watemmrk RtJbll.ftne.fs Agai11st Ge11nretric ｔｔｬｬｬｬＮｾｻｴｊｲｮｭｴｩｴｊｉｉ＠ Attack
···-··· •. llva11
,.\'etytn""''
31 - 57IMPRO/Nl; WATERAK ROBUSTNESS AGAINST GEOETRIC TRANS FORAT/ON ATTA((
/wan kwan
IMPROVING WATERMARK ROBUSTNESS
AGAINST GEOMETRIC TRANSFORMTION ATTACK
lwan Seyawan ([email protected])
Abstract
This paper presents the challenges presented by geometric transformation attacks to \Vatermark synchronization. Geometric distortion attacks can prevent proper detection of the watermrk by destroying the synchronization between the watermark and the watermark detector. This paper proposes two approahes to deal with tllis problem. The irst approach remm·es strict spatial synchronization requirements of the watermark. while the second approach enables watermark re-synchronization ater a geometric attack.
wors: Digital watermarking. multimedia security. geometric trsformation. watermark synchronization
