67
qilinadi).
embed a watermark).
Qo‗shiluvchi halal
[Additive noise]
Tasodifiy signal bo‗lib,
kontentga qo‗shilib unga
aloqasi bo‗lmaydi.
A random signal,
independent of a Work,
that is added to the Work.
Buzg‗unchi
[Adversary]
Watermarking tizimiga tahdid
qiluvchi ixtiyoriy kishi.
Anyone who attempts to
thwart the purpose of a
watermarking system.
Alifbo [Alphabet]
Xabarni namoyish etish uchun
foydalaniladigan belgilar
to‗plami, ketma – ketligi.
A set of symbols,
sequences of which can be
used to represent messages
Assimetrik kalitli
watermarking
[Asymmetric-key
watermarking]
Watermarkingni ixtiyoriy usuli
bo‗lib, unda belgini biriktirish
va ajratishda turlicha kalitlar
talab etiladi.
Any method of
watermarking in which
embedding and
detection require the use of
different watermarking
keys.
Autentifikatsiya
[Authentication]
Watermarking yoki kontentni
butunligini tekshirish jarayoni.
The process of verifying
the integrity of a
watermark or
its cover
Work.
Bitning xatolik
darajasi
[Bit error rate
(BER)]
Ko‗p bitli watermarking
xabarini aniqlagashdagi xato
bitlarning chastotasi.
The frequency of bit errors
when detecting a multibit
watermark
message.
Ko‗rko‗rona
kodlash
[Blind coding]
Xabar belgilariga xabarlarni
ifodalashning ixtiyoriy usuli
bo‗lib, unda kontent
qo‗yiluvchi belgidan mustaqil
tarzda bo‗ladi.
Any method of
mapping
messages into message
marks that is independent
of the cover Work in which
the mark will be
embedded.
Ko‗rko‗rona
aniqlash
[Blind detection]
Belgi qo‗yilmagan, haqiqiy
kontent haqidagi bilimlarsiz
belgini aniqlash.
Detection of watermarks
without any knowledge of
the original,
unwatermarked
content.
Ko‗rko‗rona
biriktirish
[Blind embedding]
Belgini biriktirishning sodda
usuli bo‗lib, qo‗yiluvchi belgi
kontentdan mustaqil bo‗ladi.
A simple approach to
watermark embedding in
which the added pattern
is independent of the cover
Work.
Ko‗rko‗rona
stegonotahlil
[Blind steganalysis]
Stegonotahlil tizimi bo‗lib,
maxsus biriktirish usuliga
qaratilmagan bo‗ladi.
Steganalysis systems that
are
not targeted to a
specific embedding
mechanism.
68
Ko‗rko‗rona
Watermarking
[Blind
watermarking]
Ko‗rko‗rona aniqlashdan
foydalaniladigan watermarking
tizimlari.
Watermarking systems that
use blind detection.
Kanal sig‗imi
[Channel capacity]
Kanal uchun erishishi kerak
bo‗lgan maksimal kodlash
darajasi.
The maximum achievable
code rate for a channel, or,
more precisely,
the supremium of all
achievable rates.
Kanalni dekodlash
[Channel decoder]
Kanalni kodlash jarayoniga
teskari jarayon va uzatilishdagi
ixtiyoriyo xatoliklarni
aniqlaydi va to‗g‗irlaydi. Bu
qabul qiluvchi tomonidan
amalga oshiriladi.
A process that inverts the
channel encoding process
and attempts to
identify and correct any
transmission errors. This is
performed at the receiver.
Kanalni kodlash
[Channel encoder]
Xabarlarni kanal bo‗ylab
ishonchli tarzda uzatish
imkonini beruvchi signallarga
aylatirish funksiyasi.
A function that maps
messages into signals that
can be
reliably
transmitted over a channel.
Kontent
[Content]
Biror turdagi bo‗lishi mumkin
bo‗lgan barcha ishlash
to‗rlami.
The set of all possible
Works of a particular type.
Nusxalash hujumi
[Copy attack]
Tahdidchi tomonidan haqiqiy
watermark
belgini bir ishdan
boshqasiga ko‗chirib o‗tkazish.
An attack in which an
adversary copies a
legitimate watermark from
one
Work to another.
Ko‗chirishdan
nazoratlash
[Copy control]
Mualliflik huquqini
buzulishdan himoyalash.
The prevention of
copyright violations.
Mualliflik huquqi
himoyasi.
[Copyright
protection]
Ishga bag‗ishlagan milliy va
xalqaro qonunlar tomonidan
taqdim etilgan qonuniy
himoya.
The legal protection
afforded a Work by
national and international
law.
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