Journal
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES
Volume E92A, Issue 3, Pages 836-838Publisher
IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
DOI: 10.1587/transfun.E92.A.836
Keywords
number theoretic transform; asymmetric watermarking; fragile watermarking; image authentication
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we propose an asymmetric fragile watermarking technique that uses a number theoretic transform (NTT). Signature data is extracted front a watermarked image by determining correlation functions that are computed using the NTT. The effectiveness of the proposed method is evaluated by simulated detection of altering.
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