Performance improvement of spatial watermarking through efficient nonbinary channel coding

Tomas Brandao; Maria Paula Queluz; Antonio Rodrigues

doi:10.1117/12.435450

1 August 2001 Performance improvement of spatial watermarking through efficient nonbinary channel coding

Tomas Brandao, Maria Paula Queluz, Antonio Rodrigues

Proceedings Volume 4314, Security and Watermarking of Multimedia Contents III; (2001) https://doi.org/10.1117/12.435450
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States

Abstract

Many of the proposed image watermarking algorithms belong to the class of spread-spectrum techniques, in which a pseudo- noise signal (itself a function of the mark) is added to the host signal, either in space or frequency domains. Under these approaches, several results and concepts from digital communication theory, such as M-ary digital modulation, channel coding and optimum detection, are easily applicable.

Citation Download Citation

Tomas Brandao, Maria Paula Queluz, and Antonio Rodrigues "Performance improvement of spatial watermarking through efficient nonbinary channel coding", Proc. SPIE 4314, Security and Watermarking of Multimedia Contents III, (1 August 2001); https://doi.org/10.1117/12.435450

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