DWT (discrete wavelet transform) based watermark system

In this paper a DWT (discrete wavelet transform) based watermarking system is proposed. The proposed embedding system changes coefficients. The extracting system rebuilds thresholds according to various attacks and decides a watermark bit from the least distorted coefficient. A new measure to detect...

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Hauptverfasser:	OH, Sang-Heun, PARK, Sung-Wook, KIM, Byung-Jun
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Applied sciences Cryptography Data mining Discrete wavelet transforms Distortion measurement Exact sciences and technology Image processing Information technology Information, signal and communications theory Miscellaneous Pixel Research and development Robustness Signal and communications theory Signal processing Telecommunications Telecommunications and information theory Teleprocessing networks. Isdn Watermarking Wavelet coefficients Wavelet transforms
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Beschreibung
Zusammenfassung:	In this paper a DWT (discrete wavelet transform) based watermarking system is proposed. The proposed embedding system changes coefficients. The extracting system rebuilds thresholds according to various attacks and decides a watermark bit from the least distorted coefficient. A new measure to detect the uniqueness of watermark is also proposed.
DOI:	10.1109/ICCE.2002.1013987