Quantization index modulation based watermarking using holography

Okman, O. Erman
Akar, Gözde
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. © (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.


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Okman, O. Erman; Akar, Gözde (The Optical Society, 2007-01-01)
We propose a blind watermarking method where the watermark is a hologram itself. In the proposed approach, the quantized phase of the hologram is embedded into the wavelet-transformed host image using quantization index modulation. In the detection stage, wavelet transform of the watermarked image followed by a minimum distance decoder is used. The proposed method is blind since it requires only information about the quantizers and the parameters of the hologram recording process. The robustness of the prop...
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Citation Formats
O. E. Okman and G. Akar, “Quantization index modulation based watermarking using holography,” 2006, vol. 6315, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41336.