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A New Blind Image Watermarking Technique for Dual Watermarks Using Low-Frequency Band DCT Coefficients

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4 Author(s)
Ahmed N. Al-Gindy ; Electrical Engineering Department, Ajman University of Science & Technology, UAE ; Ayman Tawfik ; Hussain Al Ahmad ; Rami A. Qahwaji

This paper deals with a new blind robust watermarking technique for embedding two watermarks into a host image. The technique is based on embedding watermark information in sixteen low-frequency band coefficients of the DCT sub-blocks. The Embedding process is based on changing the selected DCT-coefficients of the host image to odd or even values depending on the binary watermark's bit value. The proposed blind watermarking embedding has shown to be strongly robust against several attacks.

Published in:

Electronics, Circuits and Systems, 2007. ICECS 2007. 14th IEEE International Conference on

Date of Conference:

11-14 Dec. 2007