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Proceedings Paper

Hiding binary logo with DCT-based digital watermarking
Author(s): Punya Thitimajshima; Yutthapong Thitimajshima; Yuttapong Rangsanseri
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Paper Abstract

In this paper, we describe a watermarking technique for hiding a confidential two-dimension binary watermark, such as a company logo, into a still image. Our technique is applied to the frequency domain of the image obtained by two-dimension DCT. The watermark is embedded with a secret key into the low frequency and stored according to a zigzag format. The extraction of the watermark can be performed without knowledge of the original image, but the correct secret key is needed. Finally, since the transform domain algorithm to encode the watermark information is used, the information is robust enough against JPEG compression and ordinary image processing.

Paper Details

Date Published: 11 March 2002
PDF: 5 pages
Proc. SPIE 4739, Applications and Science of Computational Intelligence V, (11 March 2002); doi: 10.1117/12.458715
Show Author Affiliations
Punya Thitimajshima, King Mongkut's Institute of Technology Ladkrabang (Thailand)
Yutthapong Thitimajshima, King Mongkut's Institute of Technology Ladkrabang (Thailand)
Yuttapong Rangsanseri, King Mongkut's Institute of Technology Ladkrabang (Thailand)


Published in SPIE Proceedings Vol. 4739:
Applications and Science of Computational Intelligence V
Kevin L. Priddy; Paul E. Keller; Peter J. Angeline, Editor(s)

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