Wavelet transform based digital watermarking for image authentication

Min-Jen Tsai*, Hsiao Ying Hung

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

The rapid expansion of the Internet and the recent advance of digital technologies have sharply increased the availability of digital media. This paper is to investigate a wavelet based semi-fragile watermarking technique for image authentication. Image protection is achieved by the insertion of a secret wavelet tree based binary image signature (WTS) after wavelet decomposition followed by the quantization procedure. In addition, adaptive tuning steps are performed for the selected watermarked coefficients in order to increase the elasticity of watermark. During the verification, the original unmarked image is not needed for comparison. The detection of unauthorized tampering within the image is claimed by comparison with the possibly modified image's WTS and the authentic one.

Original languageEnglish
Title of host publicationProceedings - Fourth Annual ACIS International Conference on Computer and Information Science, ICIS 2005
Pages408-411
Number of pages4
DOIs
StatePublished - 1 Dec 2005
Event4th Annual ACIS International Conference on Computer and Information Science, ICIS 2005 - Jeju Island, Korea, Republic of
Duration: 14 Jul 200516 Jul 2006

Publication series

NameProceedings - Fourth Annual ACIS International Conference on Computer and Information Science, ICIS 2005
Volume2005

Conference

Conference4th Annual ACIS International Conference on Computer and Information Science, ICIS 2005
CountryKorea, Republic of
CityJeju Island
Period14/07/0516/07/06

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