Enhancing robustness of digital image watermarks using contourlet transform

Authors:
Shereen Ghannam;Fatma E. Z. Abou-Chadi
Affiliations:
Dept. of Electronics and Communications Engineering, Mansoura University, Egypt;Dept. of Electronics and Communications Engineering, Mansoura University, Egypt
Venue:
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Year:
2009

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Abstract

In this paper a simple and robust Contourlet-based image watermarking technique for copyright protection is presented. The main idea is to utilize the flexible representation of images provided by the Contourlet transform in designing a robust watermarking technique. The watermark is embedded into different bands to resist different kinds of signal processing attacks without causing visual artifacts into the host image. The performance of the technique is evaluated. The experimental results and comparisons with other Contourlet-based techniques prove the effectiveness of the proposed technique.