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Proceedings Paper

Quantization index modulation based watermarking using holography
Author(s): O. Erman Okman; Gozde Bozdagi Akar
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Paper Abstract

In this paper, we propose a blind watermarking method where watermark is chosen as the hologram of the signal to be embedded. In the proposed approach the quantized phase of the hologram is embedded into an image using quantization index modulation (QIM). The robustness of the proposed technique is tested against several attacks such as filtering, compression, occlusion and cropping. Also the effects of quantization of the hologram on the reconstruction quality are demonstrated.

Paper Details

Date Published: 25 August 2006
PDF: 12 pages
Proc. SPIE 6315, Mathematics of Data/Image Pattern Recognition, Compression, and Encryption with Applications IX, 63150A (25 August 2006); doi: 10.1117/12.680022
Show Author Affiliations
O. Erman Okman, Middle East Technical Univ. (Turkey)
Gozde Bozdagi Akar, Middle East Technical Univ. (Turkey)


Published in SPIE Proceedings Vol. 6315:
Mathematics of Data/Image Pattern Recognition, Compression, and Encryption with Applications IX
Gerhard X. Ritter; Mark S. Schmalz; Junior Barrera; Jaakko T. Astola, Editor(s)

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