Quantization index modulation based watermarking using holography
Conference on Mathematics of Data/Image Pattern Recognition, Compression and Encryption with Application IX, California, Amerika Birleşik Devletleri, 15 - 16 Ağustos 2006, cilt.6315, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Cilt numarası: 6315
- Doi Numarası: 10.1117/12.680022
- Basıldığı Şehir: California
- Basıldığı Ülke: Amerika Birleşik Devletleri
- Orta Doğu Teknik Üniversitesi Adresli: Evet
Özet
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.