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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