Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 32127
Binary Phase-Only Filter Watermarking with Quantized Embedding

Authors: Hu Haibo, Liu Yi, He Ming


The binary phase-only filter digital watermarking embeds the phase information of the discrete Fourier transform of the image into the corresponding magnitudes for better image authentication. The paper proposed an approach of how to implement watermark embedding by quantizing the magnitude, with discussing how to regulate the quantization steps based on the frequencies of the magnitude coefficients of the embedded watermark, and how to embed the watermark at low frequency quantization. The theoretical analysis and simulation results show that algorithm flexibility, security, watermark imperceptibility and detection performance of the binary phase-only filter digital watermarking can be effectively improved with quantization based watermark embedding, and the robustness against JPEG compression will also be increased to some extent.

Keywords: binary phase-only filter, discrete Fourier transform, digital watermarking, image authentication, quantization.

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1419


[1] F. Ahmed and I. S. Moskowitz, "Correlation-based Watermarking Method for Image Authentication Applications," Optical Engineering, 2004, vol.43, no.8, pp.1833-1838.
[2] F. Ahmed and I. S. Moskowitz, "The Binary Phase Only Filter as An Image Watermark", html, last viewed on April 4, 2010.
[3] J. Sang and M.S. Alam, "Binary Phase-only Filter based Image Self-authentication," In Proceedings of SPIE´╝î International Society for Optical Engineering, vol. 5908, Optical Information Systems III, San Diego, CA, USA, July 2005, pp.1G-1-1G-8.
[4] Li Xudong, "Blocked DCT and Quantization Based Blind Image Watermark Algorithm," Computer Engineering, 2006, vol. 32, no.21, pp.139-140 (in Chinese).
[5] B. Kumar and L. Hassebrook, "Performance Measures for Correlation Filters," Applied Optics, 1990, vol. 29, no.20, pp.2997-3006.
[6] J. F. Delaigle, C. De Vleeschouwer, B. Macq, "Watermarking Algorithm based on a Human Visual Model," Signal Processing, 1998, vol.66, no.3, pp.319-335.