Title page for ETD etd-11172005-123005


Type of Document Master's Thesis
Author Penumarthi, Kiranmayi
Author's Email Address kpenum1@lsu.edu
URN etd-11172005-123005
Title Augmented Watermarking
Degree Master of Science in Electrical Engineering (M.S.E.E.)
Department Electrical & Computer Engineering
Advisory Committee
Advisor Name Title
Subhash C Kak Committee Chair
Suresh Rai Committee Member
Xue-Bin Liang Committee Member
Keywords
  • inverse noisification
  • inverse spread spectrum
  • augmented watermarking
  • overlaid
  • pn sequence
  • decimal sequence
  • dct
Date of Defense 2005-10-27
Availability unrestricted
Abstract
This thesis provides an augmented watermarking technique wherein noise is based on the watermark added to the watermarked image so that only the end user who has the key for embedding the watermark can both remove the noise and watermark to get a final clear image. The recovery for different values of noise is observed. This system may be implemented as a basic digital rights management system by defining a regime of partial rights using overlaid watermarks, together with respectively added layers of noise, in which the rights of the users define the precision with which the signals may be viewed.
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