Digital Watermarking
Abstract :
Todayâ„¢s world is digital world. Nowadays, in every field there is enormous
use of digital contents.Information handled on INTERNET and MULTIMEDIA
NETWORK SYSTEM is in digital form.The copying of digital content without
quality loss is not so difficult.Due to this,there are more chances of copying of
such digital information.So,there is great need of prohibiting such illegal
copyright of digital media.Digital watermarking(DWM) is the powerful solution
to this problem.Digital watermarking is nothing but the technology in which there
is embedding of various information in digital content which we have to protect
from illegal copying.This embedded information to protect the data is embedded
as watermark.Beyond the copyright protection,Digital watermarking is having some
other applications as fingerprinting,owner identification etc.Digital water-
marks are of different types as robust,fragile,visible and invisible.Application is
depending upon these watermarks classifications.There are some requirements
of digital watermarks as integrity,robustness and complexity.
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