Block-based Tchebichef image watermarking scheme using psychovisual threshold

Ernawan, Ferda and M. Nomani, Kabir and Mohamad Fadli, Zolkipli and Zuriani, Mustaffa (2017) Block-based Tchebichef image watermarking scheme using psychovisual threshold. In: 2016 2nd International Conference on Science and Technology-Computer (ICST), 26-27 Oktober 2016 , Yogyakarta, Indonesia. pp. 6-10.. ISBN 9781509043576

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Digital multimedia has drastically increased the production and distribution of digital data in the recent years. Unauthorized manipulation and ownership of digital image have become a serious issue. In this paper, we propose a watermarking scheme which uses block-based Tchebichef moments considering psychovisual threshold. The psychovisual threshold is used to prescribe the potential location of embedded watermark. The proposed watermarking scheme considers minimum modified entropy values to determine the embedded blocks. The lowest psychovisual error threshold on each selected block are chosen as the best location to insert the watermark image. Experimental results demonstrate that the embedding watermark into the lowest Tchebichef psychovisual threshold can produce a good level of imperceptibility. The watermark recovery is strongly robust against JPEG compression.

Item Type: Conference or Workshop Item (Speech)
Additional Information: Indexes in Scopus
Uncontrolled Keywords: Digital images; Entropy; Image coding; Image reconstruction; Robustness; Transform coding; Watermarking; Imperceptibility; Psychovisual threshold; Robustness; Tchebichef moments;watermarking
Subjects: Q Science > Q Science (General)
Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Q Science > QA Mathematics > QA76 Computer software
Faculty/Division: Faculty of Computer System And Software Engineering
Depositing User: Dr. Ferda Ernawan
Date Deposited: 14 Aug 2017 06:40
Last Modified: 25 Sep 2018 08:49
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