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2006 IEEE International Conference on Multimedia and Expo
A Robust Imagewatermarking Scheme Based on the Alpha-Beta Space
Toronto, ON, Canada
July 09-July 12
ISBN: 1-4244-0366-7
P. Martins, Centre for Informatics and Systems, University of Coimbra, P?lo II, Pinhal de Marrocos, 3030-290 Coimbra, Portugal. pjmm@dei.uc.pt
P. Carvalho, Centre for Informatics and Systems, University of Coimbra, P?lo II, Pinhal de Marrocos, 3030-290 Coimbra, Portugal. carvalho@dei.uc.pt
A robust image watermarking scheme relying on an affine invariant embedding domain is presented. The invariant space is obtained by triangulating the image using affine invariant interest points as vertices and performing an invariant triangle representation with respect to affine transformations based on the barycentric coordinates system. The watermark is encoded via quantization index modulation with an adaptive quantization step.
Citation:
P. Martins, P. Carvalho, "A Robust Imagewatermarking Scheme Based on the Alpha-Beta Space," icme, pp.1581-1584, 2006 IEEE International Conference on Multimedia and Expo, 2006
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