NDLI: An elaborative study of digital watermarking technique for watermark protection

Content Provider	IEEE Xplore Digital Library
Author	Umaamaheshvari, A. Thanushkodi, K.
Copyright Year	2014
Description	Author affiliation: Akshaya Coll. of Eng. & Technol., Coimbatore, India (Thanushkodi, K.) \|\| ECE Sree Sakthi Eng. Coll. Coimbatore, Coimbatore, India (Umaamaheshvari, A.)
Abstract	A new robust digital watermarking technique with an aim of image protection is proposed. This technique incorporates both the transform and feature based method. Initially, the Harris Laplacian detector extracts the features from the cover image that suites well for the watermarking. The extracted characteristic regions are grouped to form a primary feature set where the secret message is embedded to form a watermarked image. This image is tested by introducing six different predefined attacks, which checks the robustness of the extracted feature. DCT transformation method extracts the secret message from the watermarked image. According to the results, the watermarked image is vulnerable to the undefined attack. To enhance the resistance against those attacks the primary feature set is extended by adding some auxiliary features. These features are extracted through Knapsack algorithm. The watermark is embedded into these auxiliary features where the secret message is not affected by any attacks. The experimental results show that the proposed watermark technique is efficient and also preserves the image quality.
Starting Page	526
Ending Page	532
File Size	4633379
Page Count	7
File Format	PDF
e-ISBN	9781479979875
DOI	10.1109/ICCTET.2014.6966353
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-07-08
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	De-watermarking Feature detector Watermarking Detectors Attack resistant digital watermarking Feature extraction Robustness Knapsack algorithm Discrete cosine transforms Equations Watermark protection
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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