Hiding binary logo with DCT-based digital watermarking

Punya Thitimajshima; Yutthapong Thitimajshima; Yuttapong Rangsanseri

doi:10.1117/12.458715

11 March 2002 Hiding binary logo with DCT-based digital watermarking

Punya Thitimajshima, Yutthapong Thitimajshima, Yuttapong Rangsanseri

Proceedings Volume 4739, Applications and Science of Computational Intelligence V; (2002) https://doi.org/10.1117/12.458715
Event: AeroSense 2002, 2002, Orlando, FL, United States

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.

Citation Download Citation

Punya Thitimajshima, Yutthapong Thitimajshima, and Yuttapong Rangsanseri "Hiding binary logo with DCT-based digital watermarking", Proc. SPIE 4739, Applications and Science of Computational Intelligence V, (11 March 2002); https://doi.org/10.1117/12.458715

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