22 January 1999 Novel spatially based watermarking technique with prediction-based recovery
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Proceedings Volume 3528, Multimedia Systems and Applications; (1999) https://doi.org/10.1117/12.337435
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States
Abstract
A novel spatial watermarking scheme that is highly robust is proposed. The embedding is achieved through a process similar to direct sequence spread function techniques. Integral to this is modulation according to a perceptual classification of the cover pixels. The classifier is based on the Sobel gradient operator and identifies the cover pixel region as either constant, edge, pseudo-constant, texture, or mixed. Recovery of the watermark does not require the original image and is achieved through a simple prediction process based on an adaptive method.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yin-Kheong Chee, Yin-Kheong Chee, Douglas Graham Myers, Douglas Graham Myers, Minh-Tuan Luong, Minh-Tuan Luong, } "Novel spatially based watermarking technique with prediction-based recovery", Proc. SPIE 3528, Multimedia Systems and Applications, (22 January 1999); doi: 10.1117/12.337435; https://doi.org/10.1117/12.337435
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