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dc.contributor.authorTsai, MJen_US
dc.contributor.authorHung, HYen_US
dc.date.accessioned2014-12-08T15:25:29Z-
dc.date.available2014-12-08T15:25:29Z-
dc.date.issued2005en_US
dc.identifier.isbn0-7695-2296-3en_US
dc.identifier.urihttp://hdl.handle.net/11536/17883-
dc.description.abstractThe 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.en_US
dc.language.isoen_USen_US
dc.titleWavelet transform based digital watermarking for image authenticationen_US
dc.typeProceedings Paperen_US
dc.identifier.journalFourth Annual ACIS International Conference on Computer and Information Science, Proceedingsen_US
dc.citation.spage408en_US
dc.citation.epage411en_US
dc.contributor.department資訊管理與財務金融系 註:原資管所+財金所zh_TW
dc.contributor.departmentDepartment of Information Management and Financeen_US
dc.identifier.wosnumberWOS:000231207600069-
顯示於類別:會議論文