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Extended DCT Domain for Improving the Quality of Watermarked Image

Thanh, T.M. and Thanh, N.T. (2016) Extended DCT Domain for Improving the Quality of Watermarked Image. In: 7th IEEE International Conference on Knowledge and Systems Engineering, KSE 2015, 8 October 2015 through 10 October 2015.

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Abstract

In this paper, we propose a novel and robust image watermarking based on the extended DCT domain, called q-DCT domain. By using the extended DCT domain, we can control the quality of the watermarked image. In our proposed scheme, we embed the watermark in the low-frequency of q-DCT domain in order to achieve the robustness of watermark. We also choose in our method a watermarking technique in the category of quantization index modulation (QIM) due to its good robustness and blindness. In our proposed method, the trade off of robustness and quality can be controlled by the parameters of QIM and the parameter q of logarithm transform. © 2015 IEEE.

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculties > Faculty of Mechanical Engineering
Faculties > Faculty of Information Technology
Identification Number: 10.1109/KSE.2015.70
Uncontrolled Keywords: Economic and social effects; Modulation; Quality control; Systems engineering; Watermarking; DCT domain; Low-frequency; q-logarithm DCT (q-DCT); Quantization index modulation; Robust image watermarking; Trade off; Watermarked images; Watermarking algorithms; Image watermarking
Additional Information: Conference code: 119014. Language of original document: English.
URI: http://eprints.lqdtu.edu.vn/id/eprint/9862

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