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A Robust Image Watermarking Based on Time-Frequency

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3 Author(s)
Ozturk, M. ; Elektrik-Elektron. Muhendisligi Bolumu, Istanbul Univ., Istanbul, Turkey ; Akan, A. ; Cekic, Y.

Watermarking techniques are proposed as a solution to copyright protection of digital media files. In this work, a new and robust watermarking method that is based on time-frequency (TF) representations is presented. We use the discrete evolutionary transform to represent an image in the TF domain. A watermark is embedded onto selected cells in the joint TF domain. Hence by combining the advantages of spatial and spectral domain watermarking methods, a robust and perceptual watermarking algorithm is presented.

Published in:

Signal Processing and Communications Applications, 2007. SIU 2007. IEEE 15th

Date of Conference:

11-13 June 2007